Folding patio doors, also known as bifold doors, are rising in popularity as the multi-functional doors of choice to install between home and garden. Their sleek design combined with modern engineering enables flexible opening options, meaning that folding patio doors can adapt to your lifestyle. For example, you have the ability to fold the door leaves flush against the wall to completely open your living space to the outdoors, or open just a single traffic door for easy access between home and garden.
However, with these adaptable opening options you’ll no doubt want the peace of mind that even when it’s really windy your folding patio doors will keep the gales out and stay intact. Fear not, folding patio doors are tested for their resistance to a wind load and rated accordingly. The test involves gradually increasing the air pressure to simulate wind force and then measuring both the extent to which the folding patio doors bend (deflection) and the point at which the draughts start to get through (maximum test pressure).
Performance levels for deflection are grouped into classes A, B and C, where A is the worst and C is the best. Performance for maximum test pressure is grouped into five classes, where class one is the lowest performance and class five the best. A class five window or door, therefore, can withstand 2000Pa of pressure, which is the equivalent to 127mph winds.
The Reynaers at Home Concept Folding range of aluminium folding patio doors achieve class B and C wind resistance so that you can rest assured that no matter the weather, your doors will remain high performing all year round. Please browse our Blog for more useful tips to help you choose the right aluminium doors for your renovation or new build project.