Brick is porous and moves thermally. Use (like Sikaflex). Do not use silicone—it won’t bond to masonry long-term. Fill the gap between brick and window frame with backer rod, then apply a “bomb bag” bead (thick, convex).
This process assumes the window is still structurally sound and you’re resealing the joint between the glass and the frame (or the frame and the wall). Work on a dry day with temperatures between 40°F and 90°F (4°C–32°C) and low humidity. If you’re working from outside, use a sturdy ladder and have a spotter.
Cut the nozzle of your sealant tube at a 45-degree angle. Keep the opening small—roughly the width of the gap you are filling. how to reseal a window fixed
For scraping away old, brittle sealant. Stiff-Bristled Brush: To clear out dust and loose debris.
To reseal a window, you'll need the following tools and materials: Brick is porous and moves thermally
Whether you are sealing the or the exterior house siding ?
To extend the life, inspect the seal annually. Clean the window and frame gently with mild soap and water—avoid pressure washers which can blast out the caulk. Fill the gap between brick and window frame
| Problem | Likely Cause | Fix | |--------|-------------|-----| | New caulk won’t stick | Surface oily or wet | Clean with solvent, dry thoroughly | | Caulk cracks after 1 month | Gap too deep (no backer rod) | Remove, add backer rod, reapply | | Draft still feels after resealing | Seal failed inside wall or between panes | Check interior trim; may need full window replacement |
Follow these sequential steps to ensure your new seal adheres perfectly and lasts for years to come. Step 1: Remove the Old Sealant
