Venetian windows with extensive timber mullions (triple box sash) or masonry framing are dealt with as a few individual windows. Use weatherstripping: With the movable parts of your sash windows, like wherever The 2 sashes fulfill, apply weatherstripping. This can protect against draughts from getting into by way of these https://arcticchillbar50482.blog2freedom.com/35576568/sash-windows-no-further-a-mystery