Woodside Primary Academy Walthamstow

SAPA Dual Frame 75Si Casement Windows

The Dualframe 75Si casement window is an energy efficient aluminium window that is ideal for residential projects. It is the first aluminium window to achieve a UK "A++" BFRC rating, making it one of the most energy efficient windows on the market.

The window has a number of features that contribute to its energy efficiency, including:

• Concealed gaskets and flush vents that reduce thermal radiation.
• A tailed gasket and centre seal that eliminates the need for foam inserts.
• An 88mm sightline that maximises the viewing area and increases incoming natural light.
• External beading that does not require additional components to comply with BS7950.