Whether you manage a commercial building, residential block, or public facility, preventing these issues starts with good roofing and waterproofing.

In this article, we explain the causes of leaks and damp, how to avoid them, and why proper installation and maintenance make all the difference.

Common Causes of Leaks and Damp

• Ageing or poorly installed roofing systems
• Blocked or broken gutters and downpipes
• Missing or damaged flashing around roof edges and penetrations
• Poor drainage or ponding water on flat roofs
• Insufficient waterproofing in basements or wet areas
• Cracked masonry or render allowing water to seep in

Left unchecked, these issues can lead to:

• Structural damage
• Rot and mould growth
• Damaged interiors and finishes
• Health risks for building users

How to Prevent Water Ingress

1. Choose the Right Roofing System

Different buildings and locations need different solutions:

• Flat roofs: consider high-performance felt, liquid systems, or single-ply membranes
• Pitched roofs: ensure proper underlay, flashing and tile installation

Materials must suit your building’s use, budget, and exposure to the elements.

2. Install Effective Waterproofing

Key areas include:

• Foundations and basements
• Wet rooms and plant rooms
• Roof decks and terraces

Professional waterproofing protects against rising damp, lateral seepage, and surface water ingress.

3. Ensure Proper Detailing and Finishing

It’s not just about materials — the quality of installation matters. Key junctions, upstands, and penetrations must be correctly detailed to prevent weak spots.

4. Maintain Gutters and Drainage

Regular checks and cleaning prevent blockages that lead to overflows and hidden leaks. Include this in your building maintenance schedule.

5. Inspect and Maintain Regularly

Routine inspections catch problems early. Check after storms or seasonal changes, and look out for signs like damp patches, blistering paint, or musty smells.

How IGB Ltd Helps Prevent Leaks and Damp

At IGB Ltd, we install, repair and maintain a wide range of roofing and waterproofing systems for commercial and residential clients.

Our services include:

• Flat and pitched roofing
• Guttering and drainage works
• Waterproofing for basements, terraces and wet zones
• Leak detection and remedial work

We combine durable materials with skilled workmanship to protect your property long-term.

Concerned About Damp or Roof Issues?

If you’ve noticed signs of water ingress or want to improve your building’s protection, contact IGB Ltd today. We offer practical advice, repairs, and full system replacements across the UK.