10 Questions You Should to Know about aluminium profile for windows

09 Sep.,2024

 

Choosing the right aluminum windows

Golden Jash supply professional and honest service.

Let&#;s face it &#; aluminum windows are an expensive investment, but they are worth the price. Why? Foremost, these windows are more durable, can withstand larger dimensions and loads, and are easier to maintain. So what are the key aspects when choosing aluminum windows?

After reading this article you will know:

What to look out for when choosing aluminum windows?

Price and reliability of the supplier

There is no need to deny it &#; for customers, the right price is one of the most important aspects when acquiring goods. Aluminum windows can be two times more expensive than for example PVC models, you have to find a reliable supplier. Choosing the wrong provider may lead to a variety of problems, ranging from delays to unsatisfactory quality. The second matter is the huge price difference for the same window systems between various fenestration suppliers, as they can fluctuate up to several dozen percent.

debesto works only with credible factories, additionally, we constantly monitor the fenestration market in Poland, thanks to this, you can be sure that by entrusting us with your order, you do not overpay for the purchased goods, and their quality will be at the highest level.

Our company also offers you free project consultations that will help you manage your budget and dispel doubts related to e.g. local construction requirements.

Thermal insulation

In the beginning, let&#;s establish that the more insulation, the warmer the window is. But it should be remembered, that panes have the greatest impact on the U-Factor, since they occupy the largest area of the window.

*U-Factor &#; parameter of the thermal insulation value of the window

In terms of thermal insulation, aluminum windows can be divided into cold and warm windows.

Cold profiles do not have thermal insulation inside the frames and are dedicated to the internal building only.

On the other side, warm aluminum profiles have thermal spacers that are usually made of polyamide or foam. You can also add additional spacers, which also improves their thermal properties.

&#;Cold&#; profile&#;Warm&#; profileWindow systemAluprof MB-45Aluprof MB-79NThermal spacersNOYESGlazing2 panes (Ug 1,0)2 panes (Ug 1,0)U-Factor of the selected window*0.44 BTU/ft20.23 BTU/ft2

*selected window RU x mm, 2 panes (Ug 1,0), warm inter-pane frames

Height of the frame and sash assembly

The height of the frame and sash assembly is another element that affects the window thermals &#; the lower the fold, the larger the glass area, which is why narrow-frame profiles have been gaining popularity recently.

This trend awakened the rivalry between aluminum fenestration producers that compete in creating systems with the lowest possible folding of the frame with the sash, which also allow as much light as possible to enter the room. Another advantage of the standard profiles with low folding is the slightly lower price of the windows, since the material consumption is lower.

From an aesthetic point of view, you have to remember that the larger the dimensions of the structure with the sash are, the higher the folding height can be &#; this is related to the maximum loads that a given sash and fitting can have. With larger constructions, however, the differences in the height of the assemblies are not that noticeable.

Allowed dimensions and loads

Each window system has its own maximum dimensions and load &#; this is another parameter that determines which system you should choose for your investment, for instance, if you want a 3-meter entrance, without the need to divide the structure into a lower sash and transom, the number of available options becomes significantly lower. But fret not &#; debesto&#;s technical consultants will help you choose solutions that meet your needs.

Aluminum windows &#; are they worth investing in? What are the advantages of aluminum fenestration?

The strengths and advantages of aluminum windows include, for example,

  • being more resistant to weather conditions and scratches, for that reason, aluminum windows can remain in an unchanging state for several dozen year
  • it can withstand heavier loads, for instance, the longest acceptable side of the window in PVC is approx. 3 meters, in aluminum it can be as much as approx. 4 meters
  • they do not require additional care like constructions made from wood
  • thanks to varnishing, such profiles are more durable than veneered PVC profiles, you can choose from various options for finishing the structure, e.g. it can be wood-like, matte, glossy or with a fine sand texture
  • aluminum profiles can be covered with all colors from the RAL palette, they can also be two-colored &#; a different tint and finish from the inside and outside

And what if you do not want to pay more for aluminum windows, but you care about their aesthetic aspects? Even when you have a limited budget, there are now more and more PVC systems on the market that imitate aluminum profiles. One of them is, for example, Gealan Linear.

Comparison of aluminum windows based on selected Aluprof profiles

Based on individual Aluprof window systems, let&#;s analyze the differences between cheap &#;warm&#; profiles, energy-saving models and passive aluminum windows, which are characterized by a low heat transfer coefficient. We will also learn what effect additional thermal insulators actually have on the overall thermals.

PROFILEGLAZINGPRICE OF THE SELECTED WINDOW*U-FACTOR OF THE SELECTED WINDOWMINIMAL FOLDING**MB-70 ST3 panes (48 mm)493 EUR0. mmMB-70 HI3 panes (48 mm)512 EUR0. mmMB-79N ST3 panes (48 mm)471 EUR0.1697 mmMB-79N SI3 panes (48 mm)492 EUR0.1497 mmMB-86 ST3 panes (48 mm)537 EUR0. mmMB-86 SI3 panes (48 mm)545 EUR0. mmMB-86 AERO3 panes (48 mm)624 EUR0. mmMB-104 Passive3 panes (48 mm)650 EUR0. mm

*selected window RU x mm, RAL , 3 szyby 48 mm (Ug 0.5), warm frame, aluminum handle, installation anchors
**without extra charge from a proven manufacturer
ST = standard, HI/SI/AERO = additional thermal insulators

Based on the table above, we can find out that:

Aluprof MB-79N Standard:

  • is about 5% cheaper than its older version MB-70 ST
    • is based on the MB-70, it looks almost the same from the outside, but has better thermals and a slightly higher minimum folding of the frame with the sash at no extra charge
    • this model can achieve an even lower fold, which is 90 mm, by changing the hinges from visible to hidden for an additional cost
    • has the same U-Factor parameter as MB-70 with an additional HI insulator, but it is cheaper by approx. 8%
    • with an additional SI thermal spacer, this profile is a good, cheaper alternative to the standard MB-86 version

MB-104 Passive:

For more aluminium profile for windowsinformation, please contact us. We will provide professional answers.

  • is a good option when you are looking for a window with good thermal parameters, corresponding to passive windows
  • although it is more expensive than the MB-86 AERO by about 4%, its U-Factor parameter improves notably
  • has a higher fold which is already over 100 mm

You should remember that passive systems require a different assembly than standard window systems, but we will talk about it in a separate article.

Apaft from Aluprof products, debesto also offers products from other leading aluminum fenestration system providers, such as Reynaers, Cortizo, Aliplast, Ponzio, Yawal, Deceunnick, or Schüco. 

Are you doing a large project involving aluminum windows?

Consult it without any obligation with our business consultant and technologist. Just after a short meeting, you will learn whether importing aluminum windows from Poland pays off.

Consult your project for free

Aluminium windows FAQs - your questions answered

Aluminium windows &#; your questions answered

There is no doubt that aluminium windows bring a contemporary flair to your home. With their sleek profile, aluminium windows are ideal for creating an aesthetic statement.

However, despite their contemporary appeal, their remarkable versatility means they are equally at home in period and character properties.

Their inherent strength and rigidity allow them to enhance the architectural style of any home.

Here we answer all your questions about aluminium windows.

The advantages of aluminium windows

Aluminium window frames are robust, secure and long lasting.

Their intrinsic strength also means they provide a more slimline alternative to many other types of frames, achieving a sleek, authentic appearance.

Are aluminium windows better than PVCu windows?

Aluminium is certainly more robust than PVCu and therefore should last for longer. Whether aluminium windows look better than PVCu windows is down to personal taste!

Construction of aluminium windows

How are aluminium windows made?

Aluminium windows are typically made through a process of extrusion. This involves heating aluminium billets (bars) to a specific temperature, and then forcing the softened metal through a shaped opening called a die.

Through this process, window frames, sashes and mullions can be formed with a variety of cross-sections or &#;profiles&#;.

Can aluminium windows be triple glazed?

Yes, aluminium windows can be triple glazed. In particular, this offers increased sound insulation, making them a popular choice for homes in noisy locations.

Can you have trickle vents on aluminium windows?

Trickle vents are a required feature of all new and replacement windows, to ensure adequate natural ventilation for homes and buildings. Therefore, they are installed within aluminium windows.

Trickle vents are positioned at the upper frame of a window to ensure constant, natural ventilation into the room, even when the window is closed. Read more in our guide to ventilation.

Aesthetic options

Can you have Georgian bars on aluminium windows?

Absolutely! Georgian bars can be installed within aluminium windows to achieve a traditional aesthetic whilst strengthening the window unit.

Contemporary Georgian bars do not hold panes of glass as they are set inside the sealed unit, between the layers of glazing. They emulate traditional styling, whist bringing strength and security to your home.

Can you have astragal bars on aluminium windows?

Yes, astragal bars can also be incorporated into aluminium windows adding character to your home&#;s façade.

Whereas Georgian bars are an internal bar within the sealed unit, astragal bars are applied externally on the surface of the glass, as well as internally between panes. This gives the authentic impression of the glass being held by the bars.

Can aluminium windows be painted?

Yes, provided you use the correct type of paint. However, we do not recommend painting them as you are unlikely to achieve the same quality of finish as professional powder paint coated aluminium or anodising.

Our aluminium windows are available in any RAL colour, so you will able to find the perfect match for your home.

What is powder coating for aluminium windows?

Powder coating is a method of applying a durable and attractive finish to aluminium window frames. It involves electrostatically spraying dry powder onto the surface, which is then cured under heat to form a protective layer.

What is anodising for aluminium windows?

Anodizing is an electrochemical process that increases the thickness of the natural oxide layer on the surface of aluminium, creating a durable and corrosion-resistant finish.

Sustainability and energy efficiency

Are aluminium windows energy efficient?

Yes. Modern aluminium windows are highly energy efficient.

The insulated frames act as a thermal break, keeping the cold out. Some aluminium windows are designed with a double rebate for additional heat retention and draught elimination. Plus, the slimmer frame means that more of your window is glass, which is an excellent insulator.

Are aluminium windows sustainable?

Yes, aluminium is highly sustainable as it is infinitely recyclable.

Many manufacturers use recycled aluminium in the production of window frames. This saves energy and resources but also reduces the need for mining and production of new aluminium, which has a significant environmental impact.

How long do aluminium windows last? 

We expect aluminium window frames to last at least 25 years, possibly up to 50 years, depending on the weather conditions.

An extra benefit of aluminium is that, when you eventually replace your windows, the frames can be recycled.

Maintaining aluminium windows

What maintenance is required for aluminium windows?

Aluminium windows require minimal maintenance.

Regular cleaning and occasional lubrication of moving parts are typically all that&#;s needed to keep them in top condition.

How do you clean aluminium windows?

Aluminium windows are very easy to clean.

A mild detergent and water solution with a soft cloth or sponge is all that&#;s needed. You should avoid abrasive cleaners that could damage the finish.

Do aluminium windows rust?

No, aluminium does not rust, but it can corrode if it is not protected. All our aluminium windows are powder-coated to provide a protective barrier against the elements.

For the ultimate in durability, you can also have the frames anodised. This process increases the surface layer of aluminium oxide; a natural barrier against corrosion.

Do aluminium window frames cause condensation?

Energy efficient double or triple glazing is the best way to reduce internal condensation, along with keeping your home warm and well ventilated. Read more in our guide to window condensation.

Can aluminium windows be repaired?

Yes, many issues with aluminium windows can be repaired, such as replacing seals or hardware. However, extensive damage may require frame replacement.

Aluminium windows and period properties

Do aluminium windows suit a period property?

Absolutely! Despite their modern reputation, aluminium windows complement the character and style of period properties exceptionally well.

Their versatile designs allow for seamless integration that respects the integrity of the building, while providing all the benefits of their strength and energy efficiency.

Crittall windows are a classic example of how modern aluminium windows can emulate classic, period styling.

Can I install aluminium windows on a listed property?

Possibly, yes. In general, local authorities will require a &#;like for like&#; window replacement for a listed property.

However, if, for example, your original windows were Crittall steel, then your local authority may be happy for you to replace them with a matching design of aluminium frames.

Read our guide to replacing windows in period homes.

Enhance your home with aluminium windows

Explore our full range of stylish, secure and energy efficient aluminium windows, or see them for yourself at our Haywards Heath showroom.

Call our team on 457 145 to book a design consultation at our showroom or in your home.

Are you interested in learning more about extruded heat sink profiles? Contact us today to secure an expert consultation!