Case Study: Full Tile Roof Restoration with Underlay Replacement

Location: KwaZulu-Natal, South Africa
Project: Full Tile Roof Restoration
Issue: Severe roof leaks after heavy rainfall

Overview:

A residential client in KZN experienced severe roof leaks following the intense December-January rainy season. The existing roof system had deteriorated, with dry rot affecting the battens and structural weaknesses in the trusses. To ensure long-term protection, the client contracted Target Roofing & Waterproofing for a complete underlay replacement and batten installation.

Problem Diagnosis:

Upon inspection, the following issues were identified:

  • The existing underlay system had deteriorated, allowing water infiltration.
  • The roof battens showed signs of dry rot, compromising structural integrity.
  • A broken truss was detected, which required immediate reinforcement.

These factors contributed to persistent leaks and posed a long-term risk to the home’s structural stability.

Solution Implementation:

To address these challenges, Target Roofing & Waterproofing executed a comprehensive restoration plan:

  • Full Underlay Replacement – A new, high-quality under-tile membrane system was installed to provide superior waterproofing and durability.
  • Batten Installation – All battens were replaced with treated timber to prevent future dry rot and enhance longevity.
  • Truss Repair – The broken truss was reinforced, restoring the roof’s structural integrity.

Valley Upgrades – AZ-200 Zinc-L valley irons were installed to enhance water drainage and prevent leaks in vulnerable valley areas.

Outcome:

The roof restoration significantly improved waterproofing performance and structural durability, ensuring long-term protection for the client’s home. The application comes with a 10-year guarantee, giving the homeowner peace of mind for future rainy seasons.

  • Eliminated leaks caused by faulty underlay and rotted battens
  • Strengthened structural integrity by reinforcing the broken truss

Enhanced drainage efficiency with the installation of AZ-200 Zinc-L valley irons