Damp walls are a common problem in homes, causing mold, peeling paint, and even structural damage. But can rendering stop damp? The short answer is yes – if you choose the right type of render and apply it correctly. Let’s break it down in simple terms.
How Rendering Fights Damp
Rendering adds a protective layer to your walls. A good render:
- Blocks rain from soaking into the walls.
- Lets walls “breathe” (if breathable), allowing trapped moisture to escape.
- Seals cracks that let water seep in.
However, not all renders work the same way. The wrong type can trap moisture and make damp worse!
Best Renders to Stop Damp
- Silicone Render
- Why it works: Breathable, water-repellent, and flexible.
- Perfect for: Modern homes in wet climates.
- Lime Render
- Why it works: Highly breathable, ideal for older or historic buildings.
- Bonus: Eco-friendly and self-healing (small cracks fix themselves!).
- Acrylic Render
- Why it works: Flexible and crack-resistant, but less breathable than silicone.
- Great for: Smooth finishes on newer homes.
- Cement Render
- Caution: Not breathable. Can trap moisture if used on older walls.
- Only use: On modern buildings with good damp-proofing.
When Rendering Won’t Stop Damp
Rendering alone can’t fix:
- Rising damp (moisture from the ground).
- Leaking pipes or roofs.
- Poor ventilation (e.g., condensation in bathrooms).
Always fix the root cause of damp before rendering!
How to Render Correctly
- Prepare the wall: Remove old loose render, clean mold, and repair cracks.
- Choose breathable materials: Silicone or lime render for older homes.
- Add insulation: Some renders work with insulation boards to keep walls warm and dry.
- Hire professionals: Poor application can trap moisture or crack.
Signs Your Render is Failing
- Cracks or bubbling on the surface.
- Damp patches or mold inside the house.
- Crumbling or loose render.
Benefits of Damp-Proof Rendering
- Healthier home: Less mold and allergens.
- Lower bills: Dry walls hold heat better.
- Protect your investment: Stop structural damage before it starts.
FAQs About Rendering and Damp
Need Help with Damp?
At Midrender, we specialize in damp-proof rendering using silicone, lime, acrylic, and other breathable solutions. Our team will:
- Find the source of your damp.
- Recommend the best render for your home.
- Apply it flawlessly for long-lasting protection.
📞 Contact us today for a free damp assessment or quote!