Water tightness
EN 1027 & EN 12208
E0 to E9 + E750
Doors subject to bad weather may be certified by European standards (EN 1027 and EN 12208).
This performance feature guarantees the water tightness of external doors. To do this, the doors will be subjected to driving rain combined with increasing pressure to simulate very heavy downpours.
This performance feature is often associated with air tightness and wind resistance. Indeed, these are commonly known collectively as AWW performance features (air-water-wind).

Water tightness
Heinen doors, thanks to their Metal+ design, ensure optimal water tightness. They are specifically designed to prevent leaks, even after prolonged use.
The rigorous tests conducted by the CSTC have demonstrated these doors’ resistance to water, in compliance with the NBN EN 1027 and NBN EN 12208 standards, thus guaranteeing maximum protection against infiltration. By addressing traditional weak points, such as the upper and lower parts of the door leaf or the junctions of double doors, Heinen has strengthened its doors to provide superior performance in terms of water tightness, ensuring increased durability and reliability.
European standards EN 1027 and EN 12208
Tests carried out on single and double doors at the CSTC (accredited laboratory), in accordance with current European standards:
- EN 1027: Windows and doors – Water tightness – Test method
- EN 12208: Windows and doors – Water tightness – Classification
The standards provide for different classes using two spraying methods, A or B, class A being the most restrictive and the most common (A = incline of 24° / B = incline of 84°).
Standards table of water tightness
European standards | EN 12208 EN 1027 |
|
---|---|---|
Symbols | E | |
Resistance classes | Method A1 0 1 A 2 A 3 A 4 A 5 A 6 A 7 A 8 A 9 A Exxx |
Method B2 0 1 B 2 B 3 B 4 B 5 B 6 B 7 B |
Heinen |
Single doors: > 9A (E750) Double doors: 6 A |
1 Method A: products fully exposed
2 Method B: products partly exposed
Heinen adapts its products to your needs
Discover the performance of Heinen doors, which go far beyond water tightness. Thanks to their Metal+ technology, they offer features such as fire resistance, anti-burglary protection, and much more to ensure maximum security and comfort. Explore all the features now and find the ideal solution for your projects!