GAF High Solids Silicone Roof Coating for New Zealand 

GAF High Solids Silicone Roof Coating is a high-solids, moisture-cure silicone coating that provides protection against weather elements, UV rays, and leaks due to ponding water for a variety of substrates.

A complete system for roof restoration

  • Metal roofs, low pitch commercial
  • Torch-on membrane, smooth or chip
  • Rubber membrane, EPDM, butyl, Hypalon
  • Aged TPO and PVC membrane
  • Aged structural concrete, SPF and Polyurea

Suitable for both large commercial and residential low pitch applications on roofs, decks and gutters.

Key Benefits

10 Year 

New Zealand Warranty

One Coat Applications

Install more material in less time, reducing labour costs on a project

Waterproofing Technology

Protection against leaks due to ponding water

Highly Reflective

Strong UV resistance for New Zealand conditions

Saves Money

Avoid the cost of high cost of roof replacement

Approved Contractors

The 10-Year warranty for New Zealand is offered exclusively through approved contractor program. 

 

Supported with cleaner, primers, flashing and top coat products all from the largest roofing manufacturer in the United States, GAF.

 

5 steps to metal roof restoration

 

 1. Qualify the metal roof

  • Ensure the roof is clean, dry, and tight
  • Conduct adhesion test to ensure proper coating adhesion

 2. Prep the substrate

  • Make any necessary repairs to the sheet metal and secure or replace all loose or missing fasteners

 3. Treat seams and fasteners

  • Treat ridges and rake edges with a roof brush and GAF Premium Fabric embedded into GAF Silicone Mastic
  • Seal vertical seams with GAF Silicone Mastic. Typical standing seam profiles do not require seam treatment
  • Encapsulate all fasteners with GAF Silicone Mastic

 4. Detail penetrations

  • Treat all curbs, penetrations, and drains with GAF Silicone Mastic and 12” GAF Premium Fabric

 5. Coat the roof

  • Apply GAF High Solid Silicone per the specifications for a 10 year warranty
    • GAF silicone can be brushed, rolled, or spray-applied
  • GAF Unisil High Solid Silicone can be applied in one or multiple coats
    • For one-coat systems ensure the roof is 9.5 degrees or less slope

 

5 steps to Asphaltic roof restoration

 

 1. Qualify the roof

  • Ensure the asphaltic roof is clean, dry, and tight
  • Perform moisture scan/identify all wet areas
  • Conduct adhesion test to ensure proper adhesion of coating

 2. Prep the substrate

  • Replace any wet membrane and insulation with like material
  • Power wash the roof using GAF Cleaning Concentrate

 3. Prime the roof

  • Apply a bleed-blocking primer to encapsulate and negate any asphaltic bleed-through
  • Apply GAF Multi-Purpose Primer at a rate of 0.66 – 1.0 gallons per square for smooth surfaces; 1.0 – 1.3 gallons per square for granulated surfaces

 4. Detail seams, flashings, and penetrations

  • Treat all seams using GAF Silicone Mastic
    • Tight seams: apply GAF Silicone Mastic at a rate of 160 linear feet per gallon
    • Loose seams: must be three-coursed with GAF Silicone Mastic and 6” GAF Premium Fabric
    • Three-course loose seams at a rate of 75 linear feet per gallon
  • Treat all curbs, penetrations, and drains with GAF Silicone Mastic and 12” GAF Premium Fabric
    • Three-course at a rate of 160 linear feet per gallon

 5. Coat the roof

  • Apply GAF Unisil Silicone or GAF Unisil High Solid Silicone per the specifications for a 10 year warranty
    • GAF silicone can be brushed, rolled, or spray-applied
  • GAF Unisil High Solid Silicone can be applied in one or multiple coats
    • For one-coat systems ensure the roof is 9.5 degree slope or less

Silicone Coatings Data Sheets

Silicone Mastic Data Sheet

Silicone Fibered Sealant

Premium Fabric Data Sheet

Multi Purpose Primer Data

High Solids Silicone Coating Data

EPDM Activator Data Sheet

Cleaning Concentrate Data Sheet

Asphalt Primer Data Sheet

Silicone Coatings Data Sheets

Roof Coating Colour Guide

Silicone over EPDM Restoration

Silicone over Asphaltic Restoration

Silicone over Metal Restoration

Silicone over Concrete Restoration

Silicone Coating Installation Checklist

Silicone Aged TPO Restoration

Liquid Applied Roofing Manual

Estimating Silicone for Metal Roofs

High Silicones Sell Sheet

GAF Silicone Coatings Installation Guide

As an easy-to-apply roof coating, silicone creates a highly flexible and monolithic membrane that offers unrivalled ponding water resistance and excellent UV protection, and won’t degrade, chalk, or crack from prolonged exposure to direct sunlight. Learn installation techniques from the pros.

 

Vertical metal seams

Asphaltic seams

Multi-purpose primer

GAF Bleed-Block Asphalt Primer

A Guide to a Proper Adhesion Test

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