Window closed tight but still a breeze of air leaking . How to stop it .
Hi @umch,
Welcome to the Bunnings Workshop community, it is wonderful to have you with us.
Start by checking exactly where the draft is coming from. On a windy day, slowly run your hand around the edges of the window frame and sash, or hold a tissue near the gaps to see where it moves. That’ll tell you whether the leak is from a fixed seam or from the moving parts of the window.
If the air is coming through fixed joins or cracks around the frame, seal those areas with either silicone or a gap filler, depending on the location and what the surface around the seam is made of. Clean the area first so the seal sticks properly, then apply a smooth bead along the seam and let it cure fully.
If the leak is coming from the opening sections of the window, add weather sealing such as adhesive foam strips or brush seals. These are designed for moving parts and help close up small gaps while still allowing the window to open and shut properly.
If you can identify the specific location of the leak, I would be happy to advise what method I feel would work best.
Let me know what you think and if you have further questions, please don't hesitate to ask.
Jacob
You and others reading this discussion might like to check out these helpful articles which include ways to keep your home warm this winter: How to winter-proof your home, How do you keep your home warm in winter and 10 ways to stay warm in winter. Also, here are a couple of guides on How to apply silicone sealant and How to seal a window. Mitchell
