Permaframe casement windows are glazed with 28 sealed units and there are profiles for bead choices including chamfered and ovolo shape designs. In addition a secondary weather seal on the beading gives improved performance.
Where a WER A rating is required for casement windows, a unique design on thermal insert is available for the outerframe reinforcement chamber which means a U value of just 0.8 wm2/k is achievable.
Permaframe's casement profiles have been independently assessed and have BS kitemark and BBA accreditation and achieve BS7950 and PAS 023/024 for security and BS6375 wind and water testing (Classification: severe)
So, whether you choose Rustique sculptured or System 10 chamfered profile options from the Permaframe range of casement windows you can be sure that you will be getting one of the most versatile and highest quality windows on the market today.
