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The aluminium joinery market is subject to strict standards, and windows available for sale must meet a number of requirements, which are confirmed by various certificates and declarations of conformity.
1. CE and DoP – declarations of conformity with European standards
The CE marking and the Declaration of Performance (DoP) are the basic documents that confirm that a given product meets EU requirements in terms of safety, health and quality. They are specified by Regulation (EU) No 305/2011 of the European Parliament and of the Council. The DoP covers, among other things, thermal insulation parameters (Uw, Uf, Ug), airtightness, mechanical strength and wind load resistance. In order for the declaration to be issued, the product must undergo rigorous testing by accredited laboratories. Positive verification allows the product to be CE certified. Aluprof products have obtained this marking, which guarantees compliance with European standards.
2. Burglary resistance classes (RC)
The EN 1627 standard defines burglary resistance classes for building joinery, classifying it on a six-point scale from RC1 to RC6. Each level determines how effectively a given product resists attempts to break in using specific techniques. Lower levels refer to basic protection against forceful attempts, while classes RC5 and RC6 involve much more demanding tests, which include, among other things, the use of high-power power tools. Resistance classes also specify the duration of protection – from 3 minutes for RC2 to 20 minutes for RC6. In the case of aluminium burglar-proof windows, products based on models from the MB-86 range or other Aluprof systems are designed to meet the requirements of these standards and obtain certificates confirming the appropriate RC resistance class.
3. Energy certificates
Documents confirming the energy efficiency of windows include declarations and test results for heat transfer coefficients (Uw, Uf, Ug). Favourable values for these parameters are particularly important in passive construction. An example of this is the MB-104 PASSIVE windows, which have been certified by the Passive House Institute Darmstadt.
4. Compliance with fire safety standards
Fire safety systems must comply with EN 13501-2 standards, which classify the fire resistance of building elements, including doors and windows. In the case of windows and smoke vents, it is also necessary to meet the requirements of EN 12101-2. Aluprof fire protection system components meet these requirements, which is why they are used in many public buildings, among others.
Obtaining certificates by an aluminium window manufacturer means that a given product has undergone a series of tests and examinations in independent laboratories or certification institutions. This brings a number of benefits to investors.
Thanks to certificates, investors can count on greater transparency of offers, which translates into increased confidence in the product.
How to distinguish certified windows from counterfeits?
In an era of growing popularity of aluminium joinery and increasing market requirements, there is also a risk of purchasing substandard products or products without the required certificates. To distinguish certified aluminium windows from counterfeits, it is worth paying attention to several key elements. First of all, each window should have a Declaration of Performance (DoP) and CE marking, which are the basis for confirming the authentic certification of the product.
Reputable manufacturers, such as Aluprof, also provide certificates and test reports documenting the technical parameters of their products. It is worth using the services of proven suppliers and paying attention to the opinions of professionals and existing users. You should also be cautious about offers with suspiciously low prices, as products without certificates may be of poorer quality and cause operational problems.
What certificates increase the energy efficiency of windows?
Certificates confirming low heat transfer coefficients (Uw, Uf, Ug) and compliance with passive house standards guarantee high energy efficiency. In addition, tests carried out in accredited laboratories ensure the reliability of these parameters.
Does the lack of a certificate mean poor quality?
The lack of a certificate may mean that the product has not been formally assessed according to applicable standards. However, the lack of a certificate does not always mean low quality – sometimes it may be due to an improper certification process. Therefore, it is always worth choosing products from reputable manufacturers and asking about any available certificates.
Summary
Certificates for aluminium windows are not just a formality, but an important guarantee of quality, safety and energy efficiency. Thanks to them, investors can be sure that they are buying a product that meets modern construction standards and market requirements. Certified aluminium windows from the Aluprof range are an example of solutions that combine durability, safety and comfort of use. By choosing them, you are investing in safety and long-term
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