Capillary tightening, also known as capillary rise prevention or treating damp walls, addresses the issue of moisture traveling up walls due to capillary action. An easy and economical DIY method to fix damp walls involves creating a barrier to stop moisture and sealing the walls. Here’s how to do it step-by-step:
Materials Needed:
Masonry drill or hammer drill
Waterproof sealant (silicone-based or water-repellent cream)
Injection pump or caulking gun (if using injectable sealants)
Cement-based plaster or waterproof render
Sandpaper or wire brush
Paintbrush or roller
Optional: anti-mold spray or cleaner
DIY Method for Capillary Tightening:
1. Diagnose the Problem
Identify areas where moisture is rising. Look for damp spots, peeling paint, or mold growth on walls.
2. Clean the Wall
Remove damaged plaster, paint, or wallpaper using a scraper.
Use sandpaper or a wire brush to clean the wall surface thoroughly.
Apply an anti-mold cleaner to kill mold or mildew, if present. Let it dry completely.
3. Drill Holes
