5 SIMPLE STATEMENTS ABOUT SASH WINDOW DRAUGHT PROOFING EXPLAINED

Sash windows could be equipped with simplex hinges, which permit the window to get locked into hinges on 1 side when the counterbalance on the other side is detached, allowing for the window to become opened for escape or cleaning.[citation wanted]Based on investigation from Historic England, air infiltration via a sash window could be reduced by u