When it comes to window and door performance, it can be a technical minefield to understand how and why the doors are tested as well as what the results actually mean. So, let’s take a closer look.
Why test doors?
To establish a standard of performance for homeowners to ensure they have a quality product they can trust. Reputable window and door companies conduct both in-house testing as well as independent testing to verify their products will consistently meet and exceed the required standards. These standards are in place to ensure the homeowner can choose windows and doors that will protect their home from outside weather conditions to contribute to overall comfort and energy-efficient home.
What is tested?
Thermal efficiency. Measures the door systems’ ability to insulate the home from extremes of external temperature. Doors with improved thermal efficiency ratings will keep homes warmer in winter and cooler in summer, saving on household heating and cooling bills.
Air and water infiltration. Although no door system is 100% waterproof, there are standards which help to ensure that even in severe weather conditions homeowners can be confident that their home is safe from air and water leaks. Testing is done with both positive and negative pressure while water sprays are directed at the entire surface of the door.
How do I interpret the results?
England and Wales building regulations require a minimum u value of 1.5 for new build (1.7 for renovation) The lower the u value number the more efficient a door or window. For air and water ratings, it’s best to consult your local council for the regulations that apply to your home.
What’s the purpose of these tests?
Independent window and door testing establishes an equal playing field for a door’s performance to be measured against. It also helps protect homeowners against substandard products. Make sure you’re aware of what these ratings mean and what standards your local council requires.
Can I rely on these tests?
The testing is carried out under very strict conditions and is done by external third party licensed test laboratories. At Centor we do not only test to meet requirements – we embrace testing as a method to improve our performance and quality. We strive to produce door systems with only the best materials using superior craftsmanship. Centor’s standard in testing today means we always meet the true test tomorrow. That is, the test of time.
