SASH WINDOW DRAUGHT PROOFING FUNDAMENTALS EXPLAINED

Assembly Rails: This is when the highest and base sashes overlap. Even a 1–2mm hole right here can allow chilly air to snake via, Primarily on windy nights.In the event the clasps are unlocked, Each and every window is usually slid up or down within the rails to let you open or shut your window. The process of cords, weights, and spiral balances