THE 2-MINUTE RULE FOR SASH WINDOW DRAUGHT PROOFING

Sash windows need a 3mm hole between sash and body to function with out friction blocking smooth journey. On the window that may be more than painted, twisted, and warped the tolerance could be a lot more like 5mm in locations to permit passage on the sash at “sticky points”.Improved Safety: Modern-day acrylic panels or toughened glass add an i