The Ideal range of egress friction stays allow casement windows to satisfy the emergency egress requirements of Approved Document B of the Building Regulations:
“For emergency egress any window should have an unobstructed openable area that is at least 0.33m square and at least 450mm high and 450mm wide”

• Emergency egress function only
• A vailable in 10” and 16” for side hung applications
• A vailable in both 13mm and 17mm stack heights