A SECRET WEAPON FOR SASH WINDOWS

Assembly Rails: This is where the best and base sashes overlap. Even a 1–2mm hole right here can make it possible for chilly air to snake by way of, Primarily on windy nights.Greig all recommends listing out for draughts too. 'If you can Plainly hear the sound from outdoors when standing inside of and the window is shut, that is a good indicator