Gowercroft Joinery has passed the rigorous weather performance testing for its Hardwick range of flush casement windows.
Internationally recognised standard BS6375 Part1 is designed to determine the air permeability, water-tightness and resistance to wind load for windows and external doors.
A series of stringent indicative stress tests were conducted by Maco at its indicative testing facility in Sittingbourne, where grades were given for the average result in each category.
Gowercroft Joinery achieved high results for a timber window, which included: a very high Class 4 for BS EN 12207 Air permeability; Class A9 for BS EN 12208 Watertightness under static pressure; and a Class C3 for BS EN 12210 Wind resistance.
Andrew Madge, managing director of Gowercroft Joinery, said: “Undertaking full weather and air permeability testing with Maco has been a great opportunity to actually prove that our flagship timber flush casements deliver market leading performance against the elements.”
Ross Childs, product service advisor at Maco, said: “It is rare for timber windows to be tested to these particular quality standards, but Gowercroft Joinery performed well in all three categories with particularly impressive above average results in the air permeability and watertightness tests.”