RPA Building Envelope Solutions

SLATE ROOF WATERPROOFING

RPA Waterproofing is proud to announce the successful completion of our first EPDM slate roof tile encapsulation at the prestigious Pezula Golf Estate in Knysna — all without lifting a single roof tile.

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How Did We Do It?

By using our advanced EPDM rubber membrane system — a cutting-edge system solution adapted specifically for the preservation and waterproofing of slate roofs. With a consistent 1.14mm thickness, this high-performance membrane forms a seamless, flexible barrier that conforms perfectly to the unique contours and natural textures of slate, delivering full coverage without compromising the roof’s original beauty.

Unlike traditional waterproofing methods, EPDM offers outstanding resistance to UV exposure, ozone, and South Africa’s harsh climate conditions, ensuring year-round performance and decades of durability. Installation is clean, efficient, and non-invasive — no tile removal required — and FREE from maintenance.

This innovative, cost-effective solution not only extends the life of your slate roof but also safeguards your property’s structural integrity and architectural character.

A heartfelt thank you to the Pezula Golf Estate Homeowners Association for leading the way in sustainable slate roof preservation.

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Top 10 Benefits

  1. Minimal disturbance to the roof structure: No need to remove any roof tiles = No waste!

  2. No need to vacate premise: Contents are protected.

  3. Guarantee: 20-year maintenance FREE guarantee on workmanship and system.

  4. Aesthetics: Matching neutral light-matt charcoal colour.

  5. Coverage: 180m² panels for maximum roof encapsulation with fewer seams.

  6. Thin in thickness (1.14mm): Complete retention of slate tile profile preserving the textured look.

  7. 2-in-1 protection: Complete encapsulation protection from the elements, organic mould/algae growth and maintenance FREE waterproofing protection to all adjoining systems and collection points.

  8. Completely paintable: Blend finishing edges to an exterior colour of your choice.

  9. Chemically Inert: Able to harvest rain/runoff water without the fear of contamination.

  10. Cost Effective: Cheaper than repairing or replacing your roof.

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