THE 2-MINUTE RULE FOR SASH WINDOWS

Meeting Rails: This is where the very best and bottom sashes overlap. Even a 1–2mm hole here can permit cold air to snake by way of, Specially on windy evenings.In addition to draught proofing the beads you'll be able to include a lot more glazing. These are fundamentally a next window behind your sash window. This makes a sealed hole amongst The