Why choose windows is crucial in an energy-efficient home?

Modern construction increasingly relies on comfort, economy and ecologyand not just the appearance. The house has to be not only pretty, but also warm, airtight and cheap to maintain. You can invest in state-of-the-art heating, a heat pump or photovoltaic panels - but if you via windows energy escapesthen all the effort is in vain.

It is windows are one of key elements of an energy-efficient house. It is estimated that through leaking or ill-fitting windows may even escape 20-30% total thermal energy of the building. This is a huge loss - both to the household budget and to the environment.

Therefore, choosing the right windows is not just a question of aesthetics or matching the colour to the façade. It is a decision that directly affects living comfort, heating bills and the efficiency of the entire home energy system.

At GM PLAST, we have been advising customers for years on how to choose joinery that combines elegance with excellent thermal performance. Good windows is an investment that pays for itself with every heating season - in the form of lower costs and greater comfort.

1. heat transfer coefficient (Uw) - the lower the better

If we are talking about energy-efficient windows, the first term to know is heat transfer coefficient Uw. It is this parameter that tells us, how much heat "escapes" throughout the window - i.e. through the glass, the frame and the seals. Im lower Uw value, including improved thermal insulation and less energy loss.

In practice, this means that a window with a low Uw helps to maintain a constant, pleasant room temperatureregardless of the weather. In winter, the heat stays inside, while in summer the hot air from outside does not penetrate the interior. The result? Reduced heating and air conditioning bills and greater comfort in everyday life.

🔍 Which Uw values are really good?

Different values and promises can be found on the market, but it is useful to know which figures are actually worthy of consideration:

• Standard windows - usually have a Uw within 1.2-1.4 W/m²K. This is a level that was considered very good only a few years ago.

• Energy-efficient windows - should have Uw ≤ 0.9 W/m²K.

• Passive house windows - reach values of less than 0.8 W/m²K.

You also need to be careful about "marketing" tricks. Some companies quote a value of Ug (glazing alone)and not Uw (of the whole windows)which can be confusing. Ug 0.5 sounds great, but if the frame has an inferior performance, the whole window could realistically be 1.1 - and then the energy savings are half that.

Example from GM PLAST practice

Our windows Kömmerling 88 MD in combination with glazing Planitherm achieve a ratio of Uw as low as 0.72 W/m²K - that is the passive house standard.
This is the result of a combination:

• profile with depth 88 mm,

• triple glazing package,

• warm frame spacer,

• and seals in three planes.

This ensures that the window retains excellent thermal insulationwhile maintaining an elegant appearance and high durability.

By choosing low Uw joinery, you are not only investing in a warm housebut also in real savings over many years.
In the next section we will look at a second, equally important element - the the type of application glazingwhich can do wonders for thermal and sun comfort ☀️

2. type of application glazing - the key to energy efficiency

You can even have the best window profile, but if glass is poor, the whole thing will not work. Glass is as much as 70-80% of the surface area of the entire windowsso its parameters have huge impact on how much energy we waste - or save.

In modern, energy-efficient homes ordinary glazing is a thing of the past. The following come to the fore low-emission glazingwhich keeps the heat inside in winter and protects against overheating in summer.

🔬 What is glass low-carbon?

Glass A low-emission coating is one that is covered with a special metal oxide coating (e.g. silver), invisible to the naked eye, but acting as a thermal barrier. It ensures that heat radiation is reflected back into the interior instead of "escaping" to the outside.

💎 Examples of such glazing include:

• Planitherm - classic low-E glazing, improving insulation in winter.

• Planistar SUN+ - modern glass selective, which protects against heat loss in winterand in the summer reduces heat build-up, i.e. it works in two directions.

💨 The role of noble gas and warm frame

Between the panes in the package shaft (usually 2 or 3 panes of glass) there is no 'ordinary air'. There is noble gas - usually argonwhich conducts heat more slowly than air and thus reduces heat loss by up to 20-30%.

The second element is warm distance frame - Instead of traditional aluminium, which conducts the cold, plastic or stainless steel frames are used. The result? Better insulation and no glass dew at the edges.

🌟 Example from our range: glass Planistar SUN+

• Ug = 0.5-0.6 W/m²K - i.e. excellent thermal insulation.

• Light transmittance LT = 64% - bright interiors without compromise.

• Solar factor g = 0.35 - only 35% of solar energy gets through, which means much lower risk of overheating in summer.

• Plus: elegant, slightly tinted glasswhich gives a modern look to the façade (instead of the typical 'blue' panel).

This is ideal for houses with large glazing, conservatories, living rooms with southern and western exposure - that is, wherever it gets hot in the summer hot as in a greenhouse 🔥

Thanks to glazing such as Planistar SUN+ and the use of argon and warm frame, your windows can achieve real Uw of 0.72as our models Kömmerling 88 MD - i.e. meeting standards passive house 🏠🌿

3. installation depth and number of profile chambers

Window is not only glass. Frame and leaf, the entire profile, are responsible for structural rigidity, thermal insulation, acoustics and overall durability. And one of the most important technical parameters is precisely installation depth and number of chambers in profile.

📏 Why is the 70 mm profile a relic?

Until a few years ago, 70 mm deep systems were standard. But today... it's simply not enough. 🔚

• At 70 mm, it is difficult to achieve a very low Uweven with the best glass.

• Less thickness = less space for insulation, thinner walls, poorer stability.

• Compatibility issues with modern triple glazing packages (which are thicker).

👉 In brief: this is no longer compatible with modern, energy-efficient construction. Such a profile can still be used, for example, in gazebos, cellars or garages - but not in the living room of your dream home 😉 .

 New standard: 82-88 mm

Today, depth systems are king 82 to 88 mm - they allow:

• use of wider triple-glazed packages,

• improved profile insulation,

• higher thermal insulation parameters (even Uw < 0.8!),

• greater structural stability (important for large glazings),

• and the possibility of using aluclipuor aluminium overlay for a more exclusive look.

Number of chambers - is this just a marketing ploy?

Not really! The number of chambers influences, how warm the profile itself is, although of course it is not the only factor.

• 5 chambers is the minimum these days.

• 6-7 chambers is already a premium level, where the profile itself holds heat and sound well.

• More chambers = better thermal insulationbut also greater rigidity and weight - which improves durability.

Attention: it's not just about the number ofbut also about distribution and size of these chambers - because some systems have 7 chambers only "on paper" and do not actually improve performance. This is why it matters trusted manufacturer and real tests.

✅ Our recommendations:

🔹 Kömmerling 88 MD - the absolute top in terms of energy efficiency.

• 88 mm deep, 7 chambers, triple-glazed packages up to 56 mm, aluclip possible.

• A great choice for passive houses and discerning customers.

🔹 Salamander bluEvolution 82 - An excellent compromise between quality and price.

• 82 mm, 6 chambers, excellent insulation, modern design, aluclip version available.

• Great for single-family homes and premium developments.

To sum up:
Profile depth and number of chambers really do make a difference. If you want a warm, durable and modern window - look no further than the 70s. Go for 82-88 mm, preferably with a good sealing system and a well thought-out profile.

🔧 4. Type installation - standard or warm with tapes?

You can have the most expensive, warmest and best looking windows, but if you install them poorly... 💸 then all your bill savings just fly through the cracks. Assembly is not just "putting windows into a hole" is a key element of the whole building insulation system.

🔨 Differences in practice - what does each look like?

👉 Assembly standard:

• Most common - attachment windows on polyurethane anchors/foams.

• Sealing only with installation foam - which can soak up moisture, lose volume and air vapour over time.

• OK for flats, blocks of flats, less demanding developments - but not sufficient for modern low-energy houses.

👉 Warm assembly (layering):

• Three-layer sealing:

  1. vapour-proof tape on the inside,

  2. PUR foam inside,

  3. vapour-permeable tape on the outside.

• Each layer has a function - the vapour-proof blocks moisture from inside the house and the vapour-permeable allows moisture to escape to the outside. Foam does its job on the inside - it insulates.

• Provides tightness, no draughts and no mould, as well as longer-lasting materials.

• As a result, you gain real savings on heating and cooling your home.

💡 Why warm installation increases the efficiency of the entire window?

Because. so what if you have glazing with Ug=0.5when there is a gap next to it through which frost enters in winter and hot air in summer? 😩

Warm installation:

• eliminates thermal bridges,

• protects foam from degradation,

• extends service life windows,

• prevents walls and frames from becoming damp,

• maintains high air-tightness and insulation performance over many years.

✅ Tip from us - GM PLAST:

With us warm installation is not a "luxury accessory", only standard for energy-efficient and passive houses 🏡💪

• Our installation teams are trained in sandwich assembly,

• We use professional Illbruck or Soudal tapes,

• Each window is suitably prepared for such an installation (including the rebate, shims, extensions, etc.).

Is it worth paying a few hundred extra for warm installation?
If you are thinking long term - YES, definitely worth it.
In practice, this is an expense that will pay for itself after just a few heating seasons and will keep you comfortable for years to come.

🔇 5. Sound insulation - not just warmth, but also silence

The modern energy-efficient home is not just about not letting heat escape. It is also about inside was calm, comfortable and quiet, even if for window life is in full swing.

🔍 How to choose glass and profile to cut through the noise?

Not every triple-glazed pane is a guarantee of silence. This is where appropriate glazing configurationThe different thicknesses of the glass panes and the adequate space between the panes.

Here are a few things to look out for:

• Uneven glazing thickness, e.g. 6/14/4/14/4 - disperses sound waves better than the classic 4/18/4/18/4.

• Acoustic packages - special sound attenuation films in glass (e.g. VSG with PVB film).

• Noble gas (argon or krypton) between the glass panes also does a job - it reduces the permeability of sound waves.

• Window frames with MD (centre) seal have better damping properties than ordinary AD.

• And professional installation - Here we are back to warm installation, because what good is a pane of glass if the wind whistles between the frame and the wall like in a Polish western?

❓Does a triple-glazed package always mean better?

Not quite. Standard triple glazing package (4/16/4/16/4) may be acoustically weaker than, for example, a double-glazed package with 6 mm glass and sound-absorbing film. It all depends on glass composition, frame and thickness of glazing.

It's a bit like eating - more ingredients doesn't always mean better 😅

✅ Recommendation from GM PLAST:

? Package 4/18/4/18/4 z SWISSPACER Ultimat framee - is our golden mean 
Provides very good thermal insulation and at the same time very decent acoustic performance.

➡️ And if you care about really high noise insulation, we can offer:

• Packages with laminated glass (VSG)

• Or asymmetrical glazing sets - great for flats in the centre, next to tracks, next to schools, motorways, etc.

💨 6. Ventilators - ventilation without losing heat

An energy-efficient home is not just about keeping warm, but about there was also something to breathe - literally.

Lack of adequate ventilation is:

• dampness on the windows,

• mould in the corners,

• stuffy air,

• and... health problems 👃😮‍💨

Therefore ventilators is not an "unnecessary extra" - it is a must haveif you don't have mechanical ventilation with recuperation.

❓Why should they not be forgotten?

Because tight windows are... all too tight 😅

In modern, well-sealed windows natural airflow is virtually non-existent. Even if sometimes something 'blows over', it is neither healthy nor controlled. Ventilators allow:

• control of fresh air supply,

• prevent condensation,

• provide ventilation in accordance with building standards.

📈 When is it worth investing in ventilators hygroregulated?

If you want to:

• ventilation operated automatically - without your participation,

• air supply adapts to humidity levels in a room (e.g. more in the bathroom, less in the bedroom),

• avoid heat lossbecause the vents only work when needed.

It is ventilators hygroregulated (e.g. Aereco or another proven manufacturer) are then the best choice

Our solutions at GM PLAST:

📌 We assemble ventilators with up to 42 dB attenuation, which:

• They work well in houses next to busy streets,

• provide fresh air without having to open the windows in winter (i.e.: zero heat loss),

• may be either pressureas well as hygroregulateddepending on the client's needs.

🎨 7. Aesthetics and functionality - energy efficiency need not be boring

We often hear: "if something is energy efficient, it probably looks like it's from the communist era...".
That's right: NO! Times have changed. Now you can have designer windowswhich at the same time retain heat, let the light in, a do not heat up like an oven 🌞❌🔥

✨ Windows with aluclips - modern design and durability

What is this "aluclip"? It's aluminium cap for PVC profile, which:

• gives the window minimalist, industrial designas from the architecture catalogues 🏙️

• increases immunity weather conditions, e.g. sun, rain, snow

• allows for painting in any RAL colouror even an anodised or woodgrain finish

 Veneer colours and the effect on space heating

When choosing a window colour, it is important to think not only about appearance, but also about... temperature ☀️🌡️

• Dark colours (anthracite, black) heat up more, so with the wrong glass this can result in overheating in the summer.

• Bright colours (white, grey, cream) reflect more light - so they work better in sunny living rooms, for example.

• Our solution? Planistar SUN+ + suitable veneer = style + thermal comfort 😎

Note: we also have special veneers with technology acrylic colourswhich they heat up lessdespite its dark colour!

Selection handles and accessories - external blinds, mosquito nets

Your window can be beautiful and practical:

• Handlesclassic, with push button, with key (ideal for children's rooms or ground floor)

• Mosquito netwithout it in summer! We install frame versions, roller shutters, sliding versions - whatever you want

• External blindsThey protect against sun, cold, noise and... thieves 😉 - we can integrate them into the window already at the production stage

8 Certifications and standards - how to know a good one window?

Good window is not only "nice" and "warm", but also tested, certified and compliant. In the world of energy efficiency, it is papers do the job. Why? Because they let the customer know that they are not buying a cat in a bag, but a product that has been tested by independent research institutes.

✅ What do the CE, ETA, IFT Rosenheim designations mean?

• CE - a sign that the product meets the minimum requirements of the European Union. But be warned: it's a bit like "approved for circulation" - doesn't yet mean it's great 😉 .

• ETA (European Technical Approval) - is already a tangible document certifying that a product is suitable for use in construction in the EU. Often required for large investments.

• IFT Rosenheim - it's like Harvard in the world of windows 😄 A German institute that tests products for tightness, wind resistance, water resistance, thermal and acoustic insulation. IFT-certified window = top quality.

🏠 Is "passive" window is it a marketing ploy?

Unfortunately, this is increasingly the case. Some companies are calling 'passive' windows that have Uw = 1.1... And this is nowhere near true passive construction 😒

A genuine passive window should meet stringent standards, including:

• Uw ≤ 0.8 W/m²K (preferably 0.72-0.75)

• Psi coefficient of less than 0.04

• tests carried out by the IFT or Passivhaus Institut

GM PLAST - certified quality, not marketing

With us, there is no rubbish. Our top systems, such as:

• Kömmerling 88 MD

• Salamander bluEvolution 82

• Reynaers Masterline 8 (aluminium)

...meet Passive house standards, which are accepted in countries such as:

• Germany - the most demanding window market in Europe

• France - specific standards RT2012 and RE2020

• Belgium and the Netherlands - stringent thermal insulation regulations

We work with manufacturers who supply complete technical reports, tests and certificates - not just "advertising brochures" 😉

Summary:

👉 Certificates are not just paper. It's guaranteethat your window:

• really protects against heat loss

• stands the test of time and extreme weather

• will be accepted on every construction projectincluding abroad

By choosing GM PLAST, you are choosing windows with papers - and not just with promises

🤝 9. With whom is it best to order such windows? - it's not just the price that counts

The choice of manufacturer and installation company is last but crucial step on the way to a warm and comfortable home. And although many builders look mainly at price, it is the experience and quality of workmanship have the greatest impact on the end result.

🚫 How do you avoid a sham and not overpay?

Unfortunately, there is no shortage of 'magicians' in this industry:

• who assemble cheaply from low-cost components,

• will not provide any coefficients,

• and a team will come to install it with a drill from the market and glue "by eye" 😬.

The result? Steaming windows, blowouts, sashes that do not close and complaints that nobody wants to accept. And all this at a "super bargain" price.

👀 What to look out for?

Before you place an order, check the company for:

• Experiences - How many years has it been operating in the market? How many implementations has it had?

• Warranty and service - Does it offer a written guarantee? Can you count on service?

• References and opinions - what do other customers say? What does the installation look like in practice?

• Quality of assembly - Do they do warm installation? Do they know the standards and techniques?

• Quality of components - do they use branded profiles, glass and fittings?

🏢 GM Plast - 25 years of experience, hundreds of implementations, zero incidents

We are a company with more than 25 years of history. Our windows go not only to customers in Poland, but also to France, Belgium, the Netherlands, Germany and Scandinavia. This obliges - because there is no room for half-measures there.

✔️ We produce on the best systems: Kömmerling, Salamander, Reynaers, Aliplast
✔️ We provide professional installation - from the dismantling of old windows to the finishing touches
✔️ We advise, design, deliver and service - or from A to Z
✔️ We have our own production facility - we are not an intermediary
✔️ We give a full guarantee on products and installation

With us, the customer is not an order number - only a partner in building a better home.

💡 Summary:

When choosing a company to manufacture and install windows:

• Don't just look at the price - look at experience and quality

• Check feedback, guarantees, references and customer approach

• Bet on those who have been doing it for years and with passion

The 5 most common selection mistakes windows - avoid it in 2025!

Selection windows is one of the key decisions when building or renovating a house. It is an investment for many years - not only aesthetically pleasing, but above all functional and energy-efficient. Unfortunately, many investors make mistakes in the process, which can cost a lot. Find out what avoidso that you do not regret your decision later.

❌ 1. Selection of the cheapest windows from the market

Tempting prices in DIY stores can tempt many. The problem is that the cheapest windows are often made of low-quality profiles and glazing with poor insulation properties. Such windows can deform over time, lose their airtightness and lead to higher heating bills.

At GM PLAST we offer high quality PVC profilesincluding energy-efficient systems such as Salamander bluEvolution 82 or Kommerling, that meet passive house standards.

❌ 2. Assembly without tapes - only on foam

This is one of the greatest sins in assembly windows. Foam-only installation without the use of vapour-proof and vapour-permeable tapes leads to thermal bridges, dampness and mould.

Warm installation with tapes is now a standard in modern construction - it guarantees better airtightness and durability of the entire structure.
At GM PLAST we offer professional, warm installation as standard, taking care of every detail.

❌ 3. Ordering windows without prior consultation

All too often, customers order windows without consulting the fitting company, which ends up with incorrect dimensions, incorrect opening or mismatched components. This generates additional costs and nerves.

At our company, we always send out fitters to take exact measurements and verify the details before installation - so that everything fits perfectly.

❌ 4. Omission roller shutters i mosquito nets at the procurement stage

Many investors are put off buying roller shutters or mosquito nets "for later". This is a mistake, because fitting them later to the already installed windows can be more difficult and expensive.

At GM PLAST we offer comprehensive solutions: roller shutters external, overhead, concealed and mosquito netswhich blend in perfectly with our window joinery.

❌ 5. Wrong choice colour - fashion instead of practicality

Black windows look modern, but won't work everywhere - especially on the south side, where they can get very hot. White windows get dirty more easily. It's worth thinking carefully about the choice of colour, not only in terms of aesthetics but also practicality.

We offer a wide range of colours: from anthracite, walnut and golden oak to modern variants such as Vintage Oak or Nebraska.

✅ Summary

Selection windows is not just a matter of taste - it is also a decision that affects the comfort, maintenance costs of your home and the longevity of your entire investment. By avoiding the above mistakes, you gain peace of mind for years to come.

Looking for a professional company to help you select and install the right windows? Contact us - we will prepare a free quote and advise you on the best solution.

What is the heat transfer coefficient windows (Uw)?

The heat transmission coefficient, denoted by the symbol Uwis one of the most important technical parameters to be taken into account when selecting the windows. It defines, how much heat escapes throughout window per square metre of surface area with a temperature difference of 1 degree Kelvin (K). Im lower Uw coefficient, including improved thermal insulation windowsand therefore - less heat loss and lower heating bills.

It is worth knowing that Uw is the total value, which includes both the frame and the insulating glass unit. It consists of two other parameters:

• Uf - the thermal transmittance of the window frame. frame),

• Ug - the thermal transmittance of the glazing. glass).

To calculate Uw accurately, the following is taken into account percentage of individual elements windows, their surface and their thermal conductivity. This is why even the best glazing will not guarantee a low Uw if a poor quality frame profile is used.

Examples of Uw values and what they mean in practice:

By comparison: contemporary requirements for new buildings in Poland (as at 2025) specify that Uw must not be higher than 0.9 W/m²K. For passive houses, the recommended value is 0.6-0.8 W/m²K.

In practice, this means that by choosing windows with a low Uw coefficient, we not only invest in thermal comfortbut above all in long-term savings. Heat loss through partitions, including through leaky windowsmay be responsible for even 25-30% of the total heating energy demand.

Why is Uw factor crucial in 2025?

In 2025, the topic of energy efficiency windows is becoming even more important than ever. Rising energy prices, climate change, new building regulations and greater environmental awareness are making low heat transfer coefficient Uw is becoming not so much an option as a necessity for investors and homeowners.

Reduced heating bills

The simplest and most noticeable effect of low Uw is real financial savings. Windows with a high U-value can "drain" hundreds of kWh of energy from a building every year. The lower the Uw, the lower the heat loss and thus the lower heating costs, by up to 20-30% per year. At a time when gas and electricity prices are unpredictable, this makes a huge difference to the household budget.

Year-round thermal comfort

Good windows not only lower bills, but also higher quality of life. Windows with low Uw effectively retain heat in winter, but also protect against overheating in summerespecially if they are fitted with solar control coatings. This ensures that the temperature in the home remains stable and that householders do not have to agonise over the chill at the window in winter or the stifling heat in summer.

Energy-efficient and passive construction - a standard, not a luxury

There is no longer any place for outdated solutions in modern construction. Energy-efficient and passive houses is the future of the real estate market. In order to obtain the relevant certificates or subsidies (e.g. from the Clean Air Programme), investors have to choose windows with very low Uw - usually below 0.9 W/m²Kand in passive houses even less than 0.8 W/m²K.

Thanks to modern production technologies - such as those used by the GM PLAST - Achieving such performance is entirely possible, without compromising on aesthetics or durability.

New regulations in 2025 - what has changed?

In accordance with the current Technical Conditions in force from 2021 and tightened in 2025, all newly constructed buildings must be nearly zero-energy buildings (nZEB). This means not only modern heating systems, but also windows with very good thermal performance.

From 2025, in practice:

• Maximum Uw coefficient for façade windows must not exceed 0.9 W/m²K,

• For roof windows, the limit is 1.1 W/m²K,

• More and more banks and institutions are making the granting of a green loan conditional on the use of energy-efficient windows.

In a nutshell. if you want to build legally and in line with trends, you need to bet on windows with low Uw.

Which Uw values are considered good and which are considered excellent?

Choosing new windows, it is worth paying particular attention to the Uw heat transfer coefficient, as this largely determines the energy efficiency of a building. But what values are considered goodwhich can be described as excellent?

Below is a practical table of the most commonly used Uw thresholds:

Uw recommendations for different building types:

🔹 Residential block (thermal modernisation):
If you mention windows in a large-panel block of flats, the recommended Uw value is approximately 1.0 W/m²K. In such buildings there is often no need for the most expensive windows passive, but it is worthwhile to ensure that the insulation is clearly improved over the old wooden windows.

🔹 Single-family house (modern construction):
In the case of house construction, it is worth choosing windows o Uw less than 0.9 W/m²K. This will ensure thermal comfort, lower heating costs and compliance with current standards. In houses with recuperation and heat pumps, windows will work best with Uw 0.7-0.8 W/m²K.

🔹 Office or commercial premises:
Commercial buildings are increasingly using energy-efficient windows. For a good energy balance and savings on heating, we recommend the values of less than 1.0 W/m²K, especially if the facility has air conditioning and zoned heating systems.

🔹 Passive / zero-energy house:
There are no compromises here. In order to meet the stringent passive house standards, it is necessary to windows with Uw ≤ 0.8 W/m²Kand preferably 0.6-0.7 W/m²K. Only such parameters allow the building's thermal energy requirements to be zero.

What factors influence the heat transfer coefficient?

The Uw value is influenced by many elements - not only by the glassbut also the profile of the frame, the type of materials used and even the method of installation. It is worthwhile to understand each of these factors, as together they form a coherent insulation systemwhich determines the comfort and energy efficiency of the entire windows.

1. window profile type - PVC, aluminium, wood

• PVC (plastic) - is currently best price/thermal performance ratio. PVC profiles with multi-chamber construction and thermal inserts achieve very low Uf (up to 0.92 W/m²K). Our systems are an example Kömmerling and economical Decco series.

• Wood - natural material with good insulating properties, but requires more frequent maintenance. Uw can be very good, but at the expense of thicker frames.

• Aluminium - aesthetically pleasing, durable, great for large glazing, but without thermal breaks have a high Uf. Modern systems with thermal insulation (e.g. with a polyamide spacer) significantly improve this parameter.

2. type glazing - 2-glazed vs 3-glazed, low-e coatings

• Package 2-pane - most common in older windows. Ug approx. 1.1-1.3 W/m²K - does not meet current standards.

• Package 3-pane (triple-glazed) - used in modern windows, often with noble gas (argon, krypton). Ug even 0.5-0.6 W/m²K.

• Low-E coatings - special layers that reflect heat into the building. Significantly improve glazing insulation without changing the thickness of the glass.

3. Warm frame spacer

It's glazing separator in an insulating glass unit, often underestimated but with a real impact on the final Uw.

• Traditional aluminium frames conduct the cold, leading to the formation of thermal bridges.

• Warm frames (e.g. stainless steel, plastic or composite) reduce heat loss along the edge of the glass, improving Uw by up to 0.1-0.2 W/m²Kand also eliminate the risk of windshield dew.

4 Method installation - traditional vs. warm fitting

Even the best windows lose their properties if they are badly fitted.

• Traditional assembly (for mounting foam and anchors) is the minimum today, which in many cases does not ensure full tightness.

• Warm installation with vapour-proof and vapour-permeable strips (so-called layering) eliminates thermal bridges between the frame and the wall, significantly reduces heat and moisture loss.
  At GM PLAST we use both standard and warm installation - always advising the customer on the best solution for the building.

  How to lower the Uw coefficient when buying new windows?

  When buying new windowsMany investors focus on the appearance, price or completion date. Meanwhile a key technical parameter which has a real impact on thermal comfort and heating bills is precisely the heat transfer coefficient Uw. So how do you approach the purchase wisely to choose windows with the lowest possible Uw?

  1. Choose the right window system

  Not all windows are created equal. Which profile system and glazing package you choose, has the greatest impact on the final Uw value.

  • For customers who value energy efficiency and modern design, we recommend systems Kömmerling - are premium windows that, in triple-glazed variants with warm frames, reach up to Uw of 0.7 W/m²K.

  • For those looking for a reasonable compromise between price and qualityprofiles are the ideal choice Decco - robust, aesthetically pleasing and attractively priced, with Uw within 0.9-1.0 W/m²K.

  2. trust in professional advice and installation

  Parameters windows is one thing - but only professional selection and installation guarantees that the low Uw will also be maintained under actual conditions.
  At GM PLAST we always offer technical support in selecting the glazing package, frame and installation method.
  We advise on whether, for a given building, a better passive windowWhether they are energy-efficient, which installation method works best and whether it is worthwhile to use, for example, an energy-saving system. warm frame or sunscreen coating.

  3. Don't skimp on quality - it doesn't pay off

  Purchase of the cheapest windows with poor performance is an apparent saving.

  • Such windows have high Uw (1.3 W/m²K and above)which translates into greater heat loss and higher bills for years to come.

  • In addition, they wear out faster, have inferior seals and are less weather-resistant.

  Instead, it is better to invest once - in tested profiles, triple-glazed packages, warm frames and professional installation. The difference in price can pay for itself after just a few heating seasons. In the long term, you save energy, money and... nerves.

  Summary - what to keep in mind when choosing windows with good Uw

  Selection windows with a low Uw heat transfer coefficient is the key to comfort and economy in any building. Here is Top 5 things to keep in mind when buying windows:

  • Choose windows with certified low Uf profiles - PVC, wood or aluminium with thermal breaks.

  • Opt for modern glazing packages - preferably triple-glazed with low emissivity coatings and warm spacer.

  • Pay attention to professional installation - preferably so-called warm installation eliminating thermal bridges and ensuring airtightness.

  • Don't skimp on quality - good windows are an investment that pays off over the years thanks to lower heating bills.

  • Benefit from expert advice and service - choose a proven manufacturer and contractor who can help you choose the optimal solution.

  ---

  If you're looking for windows that combine high quality, state-of-the-art technology and value for money - then you're in for a treat. Contact GM PLAST!
  Our experienced team will be happy to advise you on the best solutions and help you order windows tailored to your needs. Together, we will ensure the warmth and comfort of your home or office.

The most common mistakes in window installation and how to avoid them

Installation of windows is one of the most important stages of any construction or renovation project. Even the best windows - with excellent thermal, acoustic and aesthetically pleasing properties - will not do the job if they are incorrectly installed. Unfortunately, many builders still treat installation as a secondary issue, focusing mainly on the choice of the product itself. Meanwhile, it is quality installation determines whether windows will be airtight, durable and energy-efficient.

Incorrect installation leads to serious problems such as heat loss, blowing out, damp walls, mould or even damage to joinery. As a consequence, this can generate high repair costs, increase heating bills and reduce the living comfort of the occupants. Instead of saving money, the builder exposes himself to additional expenses that could easily be avoided in many cases.

At GM PLAST we have for years paid particular attention not only to the quality of the offered windowsbut also on professional and precise installation. Our fitters are experienced specialists who are well versed in both traditional techniques and modern solutions, such as warm installation with sealing tapes. This ensures that we our realisations meet all standards and customer expectations - both in Poland and abroad.

In the following section, we will outline the most common mistakes made with the window installationThe effects of these and how to avoid them. If you are planning a replacement or installation of new windows, be sure to read this guide to the end - it will not only save you time and nerves, but also money.

The most common errors in window installation

Installation of windows is a process that requires precision, experience and knowledge of modern technology. Unfortunately, many teams make mistakes that can lead to problems such as leaks, damp walls or even deformed joinery. Below we present the most common errors in window installation, their effects and how to avoid them.

1. Failure to adequately prepare the window opening

🔴 Error:
It is often the case that windows are installed in inadequately prepared openings, which may be uneven, dirty or damp. Dirt, old mortar or unevenness can hinder the proper seating of the frame and affect airtightness.

⚠ Implications:

• Difficult to level correctly windows

• Poor adhesion of the installation foam

• Possibility of settlement windows after installation

✅ How can this be avoided?
Before installation of The opening should be cleaned and levelled, any loose plaster removed and its moisture content checked. If necessary, it is a good idea to reinforce the edges of the opening with special profiles or levelling mortar.

2. inadequate sizing windows into the hole

🔴 Error:
Too small or too large windows in relation to the opening cause problems with their correct installation. It is often the case that builders order the windows "on contact", which makes it impossible to make expansion joints properly.

⚠ Implications:

• Excessive stresses in the window frame, which can lead to cracks

• Problems with proper sealing

• Possibility of thermal bridges

✅ How can this be avoided?
Window should be 10-20 mm smaller than the mounting hole to ensure that the installation clearancewhich allows for proper sealing and compensation for material expansion.

3. incorrect levelling and alignment windows

🔴 Error:
Window must be perfectly level and at right angles to the wall. A common mistake is to install 'by eye' or to use the wrong spacer wedges.

⚠ Implications:

• Difficulty opening and closing sashes

• Excessive stresses in the hinges leading to faster wear and tear of the hardware

• Sashes falling out of the frame in extreme cases

✅ How can this be avoided?
To set windows a spirit level and installation wedges should be used. After initial seating, it is necessary to check the plumb and level on several planes.

4. improper attachment of window frame

🔴 Error:
Inappropriate placement of anchors or dowels, or too few of them, can weaken the structure windows.

⚠ Implications:

• Window can deform under weight and stress

• Leakage weakening, formation of leaks

• Risk of window damage in high winds or draughts

✅ How can this be avoided?
Fixing should be done according to the guidelines window manufacturer. Recommended anchor arrangement:

• In corners - max. 15 cm from the edge

• Every 50-70 cm along the frame

5. inadequate sealing with installation foam

🔴 Error:
Too much or too little polyurethane foam can impair airtightness windows. It is often used the foam itselfwithout additional sealing tapes, which is a mistake.

⚠ Implications:

• Poor thermal insulation - heat loss

• Moisture absorption by the foam, which can lead to damp walls

• Possibility of frame deformation

✅ How can this be avoided?
Use polyurethane foam in the correct amount and vapour-proof and vapour-permeable stripswhich protect the insulation from moisture.

6. Lack of vapour-proof and vapour-permeable tapes (with warm installation)

🔴 Error:
Traditional installation on the foam itself does not provide adequate protection against moisture. The lack of taping causes the foam to soak up water, leading to degradation.

⚠ Implications:

• Increased heat loss

• Risk of mould and mildew growth in the insulation layer

• Faster loss of foam insulation properties

✅ How can this be avoided?
It is worth betting on warm installation, which involves the use of:

• Vapour-permeable strips (external side) - wicks moisture to the outside

• Vapour barrier tape (on the inside) - prevents moisture penetration into the insulation

💡 At GM PLAST we use warm installation as standard, so that our customers can enjoy the highest energy efficiency windows.

7. No expansion joints or space for thermal expansion

🔴 Error:
Building materials, including PVC i aluminiumThey change their dimensions under the influence of temperature. If window is fitted "in compression", deformation may occur.

⚠ Implications:

• Crackling and creaking of the frame

• Problems with opening and closing sashes

• Cracks in glass or profiles in extreme cases

✅ How can this be avoided?
Keep Adequate installation play as mentioned above especially with PVC windows (10-20 mm) and use flexible seals.

Warm installation - a way to avoid mistakes and improve energy efficiency

More and more investors and homeowners are opting for warm installation windowsinstallation method window joinerywhich ensures not only a solid seat, but above all excellent air-tightness and high thermal insulating capacity. In times of rising heating costs, this solution is becoming not only cost-effective, but essential.

What is the difference between warm installation than the traditional one?

🔹 Traditional installation consists mainly of fixing the window mechanically (with anchors or dowels) and sealing the installation space. exclusively with polyurethane foam. Unfortunately, this foam - although it has good insulating properties - is very sensitive to moisture and does not sufficiently protect against moisture penetration.

🔹 Warm installation is a modern technique that involves the execution of a so-called 'fusion'. three-layer sealing:

• inner layer - vapour-proof tapewhich prevents the penetration of water vapour from inside the building into the insulation layer,

• middle layer - installation foam as thermal and acoustic insulation,

• outer layer - vapour-permeable tape, which protects the insulation from precipitation and UV radiation while allowing moisture to evaporate to the outside.

💡 In practice, this means that warm installation protects against wall moisture, heat loss and mould growthwhich is of great importance for the sustainability of windows and the comfort of residents.

Advantages of using tapes - protection against moisture and heat loss

✅ Increased tightness of the window-wall connection - The tapes eliminate the risk of thermal bridges and uncontrolled air flow.
✅ Longevity of the insulation layer - polyurethane foam does not degrade as it is protected from moisture and UV radiation.
✅ Protection of the wall structure - moisture does not penetrate the masonry, reducing the risk of dampness and mould growth.
✅ Improved sound insulation - The three-layer seal increases protection against noise from outside.
✅ Higher energy efficiency of the building - thanks to airtight window installation heating energy requirements can be significantly reduced.

Reducing heating bills through airtightness

High air-tightness achieved through warm installation translates directly into lower heating costs. In winter warm air does not escape through leaks around the windowsand in summer - the coolness from the air conditioning does not escape.

According to the research, properly executed warm installation can reduce heat loss through window joints by up to 70%which may translate into savings of several hundred PLN per year in an average single-family home.

In addition, airtight installation supports meeting the requirements of WT 2021 (technical conditions of buildings), which is important for building approvals and obtaining subsidies, e.g. from programmes "Clean Air".

why choose GM PLAST?

At GM PLAST we offer professional warm installation as standard - tapes, foams, anchors, all in accordance with the latest standards. We do not regard this solution as an "extra option" - for us it is the basis for modern, energy-efficient construction.

Thanks to many years of experience, modern technical facilities and cooperation with renowned manufacturers (Kömmerling, Decco, Aluplast, Salamander, Aluprof, Aliplast, Reynaers), we are able to offer our clients:

• expert technical advice,

• precise and tight assembly in compliance with current regulations,

• comprehensive service - from measurement to service,

• products that meet the highest standards of thermal and acoustic insulation.

👉 Bet on quality that translates into real savings - choose warm installation with GM PLAST.

The importance of the experience of the installation team

Correct window installation It's not just a question of choosing the right materials and technology - the the experience and knowledge of the installation team play a key role here. Even the highest quality windows will not fulfil their function if they are poorly seated, inaccurately sealed or not installed in accordance with the manufacturer's recommendations.

Why rely on certified and experienced professionals?

🔧 Professionals know the current installation standards and building regulationsso they can avoid many of the problems associated with misplaced joinery.
🔧 Experienced fitters can choose the right technique for the type of wall and the specific building - mounted differently windows in a new energy-efficient house, and differently in an old building with thick walls.
🔧 Certified teams work according to the three-layer installation technology, ensuring tightness, durability and aesthetic finish.
🔧 They know how to prepare the reveal properly, how to ensure that the frame is properly levelled, how to use tapes and foams to avoid later problems with leaks, freezing or deformation.
🔧 Professionals can also react quickly to unforeseen situations - such as unevenness in the masonry, missing right angles or other construction defects.

Errors are most often due to saving on the team

One of the most common reasons for errors in window installation is attempt to save on labour. Choosing the cheapest team or installing it yourself without experience can lead to:

• leaks around the window frame,

• the formation of thermal bridges,

• damp masonry and mould growth,

• cracking of the plaster and deformation of the frame,

• or even to complete disassembly and the need for reassemblywhich generates high additional costs.

💸 Paradoxically - saving a few hundred zloty in the beginning often means Several thousand PLN of losses in the long termnot to mention the loss of thermal comfort or interior aesthetics.

 GM PLAST are professionals you can trust

Our installation teams undergo regular training and are familiar with the characteristics of both modern and older buildings. This allows us to perfectly match the technique installation to the technical conditions of the facility in question.

By cooperating with GM PLAST, you gain:

• access to a trained assembly team,

• the certainty that installation will be carried out in accordance with standards and manufacturers' recommendations,

• guarantee of durability and tightness of installation,

• as well as professional technical advice at every stage of the investment.

Don't take risks - trust the proven specialists and choose a comprehensive service window installation with GM PLAST.

How to avoid mistakes? A step-by-step guide for the investor

Installation of windows is one of the most important stages during the construction or modernisation of a house. Not only does the durability of the joinery depend on its quality, but also thermal comfort, noise levels inside the building and the amount of heating bills. Here is tipswhich will help you avoid the most common mistakes and ensure the longevity of your investment.

1. Choose a proven company with experience

Bet on a partner who doesn't just sell windowsbut also deals with their professional installation of. At GM PLAST we offer a comprehensive service - from technical advice to professional installation carried out by trained teams.
Don't just go for the price - experience, good reviews and references are just as important as an attractive offer.

2. ask for warm installation and a written guarantee

Warm installation using vapour-proof and vapour-permeable tapes, polyurethane foam and suitable anchors is the standard in modern construction today.
Ask the contractor for details of the technology and ask for a written guarantee on the work carried out - is an additional safeguard for you as an investor.
W GM PLAST all assemblies are carried out in accordance with warm installation, ensuring airtight and energy-efficient construction.

3. Ensure proper preparation of the walls

Many mistakes result from an unprepared reveal - crumbling, damp or with unevenness. Before installation you should:

• Remove loose plaster fragments and level the surface,

• ensure that the substrate is dry and stable,

• use a suitable primer or levelling layer.
  Particularly when it comes to the thermal modernisation of buildings, it is worth consulting a professionalto prepare window openings in accordance with current technical requirements.

4. Check technical documentation and ask for acceptance after installation

Don't be afraid to ask for details - any serious company should provide you with an installation project, indicate the materials and technology used.
After completion of the work, be sure to carry out technical acceptance, preferably with a company representative. Check:

• tightness of joints,

• the workmanship of the window sills,

• operation of fittings and handles,

• cleanliness and aesthetics of workmanship.
  W GM PLAST we carry out final inspections and discuss all relevant aspects of the installation with the customer.

5. make sure the team uses certified materials

Sealing tapes, mounting foams, anchors and screws - all of these items should have certificates and approvals proving their durability and compliance with the standards.
Our teams use only proven assembly systemsthat achieve the highest levels of airtightness and thermal insulation.

Summary - investment in good windows This is only the beginning. Equally important is their professional installation. If you want to avoid mistakes, rely on experience, modern technology and full documentation.

Why choose windows from GM PLAST?

Choosing windows is a decision that will last for years - so it is worth betting on a proven manufacturer that combines quality, experience and a comprehensive service. GM PLAST is a company that for more than 25 years has not only provided its customers with durable and aesthetically pleasing windowsbut also full support at every stage of the investment. Here's what sets us apart:

✅ Top-quality PVC profile windows Kömmerling

In our offer you will find energy-efficient and durable window systemsbased on renowned German profiles Kömmerling. With these, your windows will last for many years, providing excellent thermal and acoustic insulation.

✅ Professional installation - in Poland and abroad

We are not only active locally - we implement assemblies throughout Poland and also abroad, mainly in Belgium and France. We offer both traditional assemblyas well as warm assembly¿ as standard, using modern tapes, foams and anchors that meet the latest building standards.

✅ Comprehensive customer service

From the first contact to the completion of the installation, we are at your service. We provide:

• expert technical advice,

• precise measurements,

• transport to the indicated address,

• and installation by experienced teams.

With us, everything runs smoothly and without stress.

✅ 25+ years of experience and modern machinery

We are one of the largest PVC joinery manufacturers on the profile Kömmerling in the region. Our production line is based on modern technologiesand every stage of implementation is carefully monitored. Hundreds of satisfied customers are our best calling card.

✅ Windows to suit all budgets

We understand the needs of different customers - that is why our offer includes both economic solutions (e.g. on Decco profiles)as well as premium products. We help select the best solutions for each budget and investor's needs.

Don't risk cooperating with accidental teams - bet on quality, which has already been appreciated by many customers in Poland and Europe. Choose GM PLAST - with us you gain peace of mind, safety and the certainty of an excellent result.

Window installation is key stagewhich has a direct impact on the comfort, safety and energy efficiency of your home. Unfortunately, many people make a serious mistake, looking for savings at this very stage. Improperly seated windows can lead to leaks, thermal bridges, damp walls and even the need for costly joinery replacement - often after only a few years.

That is why it is worth betting on a proven partner that knows what it is doing. At GM PLAST, we have been combining for over two decades premium PVC windows z professional, certified installation. Our experience, state-of-the-art technology and individual approach make us the trusted choice for hundreds of customers in Poland, Belgium and France.

🔧 Don't take risks - go for proven quality.
📐 Request a free quote or contact us, and we will advise you on the best solution to suit your budget and expectations.

Your home deserves the best

What is window treatment?

Warm sill - what is it and is it worth it?

Warm sill is an innovative solution used during window installationwhich increases their thermal insulation and improves the tightness of the frame-to-masonry connection. It is a special profile usually made of extruded polystyrene (XPS) or polyurethane (PUR) foamwhich is mounted under window as an insulating layer. This effectively eliminates thermal bridges, reducing heat loss and limiting the risk of damp walls around the windows.

How the warm sill?

A warm window sill has several key functions:

• Provides better thermal insulation - reduces heat loss, resulting in lower heating bills.
• Seals the joint windows with a wall - eliminates leaks through which cold air could penetrate.
• Facilitates assembly windows - provides a stable and level base, so that the window is precisely embedded.
• Protects against moisture - reduces the risk of condensation and mould growth.

A warm window sill is a particularly good solution for modern energy-efficient construction and passive houses.

Warm sill

How much does a warm sill?

The cost of warm sill depends on several factors, such as material type, profile thickness and width windows. Average prices fluctuate in the following ranges:

• Standard warm sill XPS - approx. PLN 30-60 per running metre.
• Warm sill of PUR foam - approx. PLN 50-100 per running metre (a more expensive but more sustainable option).
• Warm sill dedicated to energy-efficient windows - PLN 100-150 per running metre.

To this must be added the installation costs, which can range from PLN 20 to 50 per metredepending on the region and contractor.

Is it worth investing in a warm sill?

Definitely yes! Warm sill is an investment that pays off in the form of lower heating costs, greater thermal comfort and longer service life windows. This is particularly important in modern construction, where energy efficiency and structural integrity count.

If you are planning to replace windows or building a new home, it is worth considering installing a warm window sill as an additional layer of insulation to provide better protection against the cold and damp.

When to use warm sill?

Warm sill is a solution that proves its worth in many cases, especially when it comes to improving the thermal insulation of a building. Here are situations where its use is particularly beneficial:

• In new energy-efficient and passive construction -. If you are building a modern home with high insulation performance, warm sill is almost a necessity. Provides better sealing windowsreduces heat loss and helps meet standards energy-efficient and passive constructionwhere the aim is to minimise energy consumption.

• When replacing windows in an older building - If you plan to replace windows in an older house, it is worth thinking about a warm windowsill. Old buildings often have thermal bridgesthrough which heat escapes, leading to higher heating bills and moisture problems. Warm sill will help to prevent this, especially if we install modern, energy-efficient windows.

•  When you want to eliminate thermal bridges - Thermal bridges are places in the building envelope through which heat escapes to the outside. Warm sill eliminates this problem, improving thermal comfort in the room and protecting against moisture. This is particularly important in rooms exposed to temperature differencessuch as the kitchen or bathroom.

• In areas with harsh climates - If you live in a region where winters are harsh, warm sill will provide better insulation and greater thermal comfort at home. It will also prevent the phenomenon of frosting windowswhich can lead to condensation and mould on the walls.

• When you want to avoid condensation at the joint windows and wall - Many people are struggling with evaporation of glazing and dampness around the windowsespecially during the heating season. This is the result of the temperature difference between the inside and outside of the building. Warm sill improves insulation and reduces this phenomenon, thus avoiding problems with damp and mould.

•  If you plan to install large, heavy windows – In the case of large glazings, for example terrace doors or panoramic windows, warm windowsill stabilises the structureprevents deformation and improves joint strength windows with the wall. This is particularly important

Frequently asked questions:

1. whether warm windowsill is it necessary?

Not mandatory, but significantly improves thermal insulation and joint tightness windows with masonry. It is particularly recommended for energy-efficient and passive houses.

2. whether warm windowsill Suitable for all types of windows?

Yes, it can be used both under PVC windows, woodenas well as aluminium. It is available in various variants to suit systems windows.

3. whether it is possible to install warm windowsill in an existing building?

Yes, but this is best done during exchanges windows. In an existing building, installation may require additional building work.

4. What materials are used in the production of warm window sills?

The most common use is extruded polystyrene (XPS) or polyurethane (PUR) foamwhich have high thermal insulation properties.

5. how the assembly goes a warm windowsill?

It is installed prior to embedding windows. Assembly consists of gluing and sealing the profile on the substrate and then set the frame on it windows.

6. whether warm windowsill affects the installation of the external and internal sills?

Yes, it facilitates the installation of window sills, providing better support and tightness of connections.

7. how much does it cost to install a warm windowsill?

The price depends on the contractor, but is usually PLN 20-50 per running metredepending on the complexity of the work.

8. whether warm windowsillt can be used for large glazings?

Yes, especially in the case of sliding systems (HS, PSK)where stability and insulation of the lower part of the structure are crucial.

9. whether warm windowsill prevents freezing windows?

Yes, it eliminates thermal bridgeswhich are the main cause of frostbite at the interface windows and masonry.

10. What are the differences between a warm windowsill and a standard foundation for window?

Standard underlay often does not provide such good insulation and airtightness, whereas warm windowsill significantly reduces heat loss and improves stability windows.

What do I clean my windows with to get them perfectly clean?

Clean windows are the showpiece of any home or flat. However, in order to avoid streaks, smudges and deposits, it is worth knowing what is the best way to clean them. The right choice of cleaning agents and cleaning technique will allow you to enjoy perfectly clear windows without unnecessary effort.

Home remedies for window cleaning

Many people are satisfied with simple, homemade ways of cleaning their windows. The most popular solution is a 1:1 solution of water and vinegar. Vinegar effectively removes dirt, leaves no streaks and gives the windows a shine. Another way is to use warm water with lemon juice, which has similar cleaning properties and leaves a pleasant fragrance. Some people also use water with glycerine, which prevents dust and rain from quickly settling on the windows.

Ready-to-use window cleaning products

There are many professional window cleaners available on the market. It is advisable to choose those that do not contain ammonia, as this can damage the surface of the glass and affect health. Popular cleaning products contain isopropyl alcohol, which evaporates quickly without leaving streaks. If you want an environmentally friendly solution, you can reach for biodegradable glass cleaners that do not contain harmful chemicals.

Which window cleaning tools to choose?

In addition to the right cleaning products, the choice of window cleaning tools is important. The best options are:

• Microfibre - Absorbs water perfectly and leaves no streaks.
• Chamois leather cloths - a natural material that gently cleans windows.
• Rubber squeegees - reliable in removing water and dirt without leaving any streaks.
• Window steamer - effectively removes dirt without the need for detergents.

Window cleaning

How to clean windows properly?

For best results, it is worth following a few rules:

1. Wash windows on a cloudy day - the sun's rays cause liquids to dry quickly, which encourages streaks.
2. Start with the window frames - removing dust and dirt from the profiles will prevent them from being transferred to the glass.
3. Use two cloths - one for cleaning and one for polishing.
4. Wash the glass with vertical movements on one side and horizontal movements on the other - this will allow you to spot any streaks more quickly.
5. Don't forget the seals and fittings - their regular maintenance extends the life of your windows.

Summary

Clean windows not only mean better aesthetics, but also more natural light in the rooms. Regular window cleaning, the right choice of cleaning agents and tools will allow you to enjoy spotlessly clean windows without streaks and stains. By choosing effective, yet safe cleaning methods, you can make this task much easier and achieve a long-lasting effect of shiny windows.

What is the eel in window?

What is a carb in the window

A jamb is a structural element that has been present in the construction industry for many years. In the past, it was used in townhouses as a form of additional reinforcement for the frame and to prevent the window from falling out. Its role today, despite technological advances, is still important. In this article, we will discuss what exactly a jamb is, what functions it has and what modern applications can be attributed to it in the context of energy efficiency in buildings.

Definition and history of the carb

A carbuncle, also known as a carbur, is the part of the wall that protrudes at the opening of the window. It is created by extending the bricks a short distance. In the past, in the era of masonry construction, architects designed window openings with a view to optimising heat loss. The sash allowed the window to fit effectively into the wall, resulting in better thermal insulation. Its use in traditional buildings allowed for a reduction in heat loss, which is becoming extremely important in the context of rising energy costs.

Window nets

Functions of the jamb in construction

Although the carcass appears to be an insignificant structural element, it performs a number of key functions that affect the sustainability and energy efficiency of buildings. Here are some of the most important of these:

1. Thermal insulation: Wool reduces thermal bridges, which translates into reduced heat loss. As a result, buildings are more energy efficient, which in turn reduces operating costs.
2. Sealing and soundproofing: The carburettor allows the window frame to fit precisely into the masonry, improving sealing and reducing external noise, which is particularly important in cities.
3. Aesthetics and functionality: A structural element, the eel can also have a decorative function, giving buildings a distinctive appearance.

Modern applications for the eaves

In modern construction, eaves still play an important role. Thanks to the use of modern building materials such as cellular concrete blocks, the installation process has become simpler. Carbons up to five centimetres thick are installed both on the sides and on top of the window opening, which increases the insulation efficiency.

Warm installation and its importance

Warm installation is the installation method windows, which is gaining in popularity for its insulating properties. In this context, the eaves plays a key role by creating an additional layer of insulation between the window frame and the masonry. This minimises heat loss and significantly reduces the risk of condensation and moisture inside the structure.

Summary

The jamb, as a traditional structural element, has gained new importance in the context of modern construction. Thanks to its functionality and its use in the warm assembly method, the carboy contributes to the energy efficiency of buildings, which is crucial in an era of rising energy costs and the need to care for the environment.

If you want your home to be energy efficient and aesthetically pleasing, it is worth investing in the right windows i doors. Our company GM PLAST offers modern solutions that combine functionality, aesthetics and high quality workmanship. We encourage you to familiarise yourself with our offer and consult your project with our specialists.

Like windows affect the value of the property?

The value of a property is a topic of interest to many people, both sellers and buyers. Many factors influence this value, one of which is windows. Although they may appear to be just an element of the building, they have a significant impact on its attractiveness and functionality.

Aesthetics and style

Windows are a key element of architecture. Properly matched to the style of the building, they can enhance its aesthetics and attract the attention of potential buyers. For example, changing old windows for new can increase the value of the property by up to 10-15%. In single-family homes, the total cost of replacing windows can range from PLN 15,000 to PLN 30,000which often translates into an increase in market value.

Functionality and safety

Choosing windows, it is worth paying attention to their functionality. Modern windows with solid locks and reinforcements not only improve security, but also increase the value of the property. Potential buyers pay attention to these aspects, making well-designed windows can increase the value by few percenteven in the case of flats, where the total cost of windows ranges from PLN 8,000 to 20,000.

Energy efficiency

In an era of rising energy prices and increasing environmental awareness, energy efficiency is increasingly important. Windows that effectively prevent heat loss can reduce a building's running costs. For example, investing in energy-efficient solutions such as triple glazing can cost from PLN 20,000 to 40,000 for the entire building, but can save up to 30% heating costs.

Maintenance costs

Maintenance costs should not be forgotten, which also affect the value of the building. Windows requiring frequent repair or replacement may discourage potential buyers. Choosing durable materials such as PVC, which do not require intensive maintenance, can cost from PLN 15 000 to 25 000but reduces maintenance costs in the long term.

Comfort of residents

The value of a property is also influenced by the comfort of its inhabitants. Windowswhich provide good sound insulation and ventilation, significantly improve quality of life. Quiet and comfortable interiors are more attractive to buyers, which translates into a higher market value o 5-10%.

Influencing first impressions

First impressions play a key role in the property sales process. WindowsAs an element visible from the outside, they have a significant impact on how potential buyers perceive a building. Modern, aesthetically pleasing windows can make a house more attractive, which often results in a quicker sale and a higher price. Investing in windowsthat match the architectural style of the building is a step that can attract more interest.

Differentiation of the offer

Selection of suitable windows can also affect the value of a property through differentiation. In the case of detached houses, windows of different shapes and colours can make a building more unique. Potential buyers are often willing to pay more for properties that stand out from the rest. By diversifying your offer, you can reach a wider range of customers.

Sustainable development

More and more buyers are paying attention to environmental and sustainability aspects. Windows made of environmentally friendly materials, such as wood certified by environmental organisations, can increase the value of a property. Investing in green solutions is seen as modern and responsible, which can attract more environmentally-conscious customers.

The role of technology

Investment in smart windows, which can be controlled remotely, also affects the value of the property. With such solutions, residents can gain greater comfort and control over the conditions in their home. Intelligent window management systems are becoming increasingly popular and their presence in a property can increase its value.

Value retention over time

It is also worth noting that good quality windows help to maintain the value of a property in the long term. Regular maintenance and upgrading of windows can prevent deterioration, which translates into maintaining a high market value. Investing in durable materials can result in lower running costs and greater satisfaction.

Summary

Windows are much more than just structural elements. Their quality, style and energy efficiency can affect the value of a property significantly. An investment in high-quality windows brings benefits in terms of both higher market valueas well as improving the quality of life for residents. It is therefore worth considering their appropriate choice when planning to increase the value of your building.