A really well known approach to draught proofing sash windows is to implement self-adhesive weatherstrips. These are generally bought in rolls and therefore are designed to be Slash to size and trapped into put.  Use weatherstripping: To the movable elements of your sash windows, like where by the two sashes https://mikemozart33210.bloggerbags.com/40884980/the-fact-about-sash-window-draught-proofing-that-no-one-is-suggesting