Kowhai Roof Coatings

No matter what type of roof you have your local Kowhai Guy has the experience to carry out the necessary repairs to your roof.

Hard to find leaks are attended to, for concrete tile roofs, cracked tiles are replaced, hips and ridges are repaired and if necessary, can be fully re-pointed with a flexible pointing system. Stone chip tiles and iron roofs, may involve re-nailing, treating rusty areas or replacing tiles.

Concrete/Clay – TileCoat Coating System

  1. PREPARATION AND REPAIRS
    All tiles will be checked for cracks and replaced where required. Ridges and barges will be checked and where required will be replaced and repointed with the Kowhai flexible pointing system. Valleys will be checked, repaired or replaced as needed
  2. CLEANING
    The roof will be waterblasted to remove all dirt, loose and flaking material. If moss and mould is present, the roof will be treated with Kowhai Koklean Green, a slow release, biodegradable, antifungicide treatment before applying the Kowhai TileCoat Coating System
  3. SEALING
    The roof will be then sealed with Kowhai Greenseal, to seal off any bare porous areas and to wet out old chalking paint to ensure the adhesion of the Kowhai TileCoat Coating System. Kowhai Greenseal also incorporates a bacteriacide to kill any existing mould spores.
  4. TILECOAT
    The Kowhai TileCoat ColourCoat will then be applied. TileCoat is a 100% acrylic high build, made to the colour selected from our Kowhai Colour Chart
  5. HARDGLAZE
    Kowhai HardGlaze in gloss or satin will be applied to provide the ultimate protection against UV, weathering and dirt pickup. This completes the Kowhai TileCoat roof protection system
  6. TERRACOTTA/CLAY TILES
    Where you have a terracotta/clay tile roof and wish to keep the natural colour and appearance the Kowhai will apply the following system:

    1. Preparation and cleaning
    2. The roof will be sealed with Kowhai Greenseal to seal and ensure adhesion of the glaze
    3. Kowhai HardGlaze in gloss or satin will be applied

Metal/Iron Roof – IronCoat Coating System

  1. PREPARATION AND REPAIRS
    All loose nails will be removed and refixed with screws. All ridges, valleys and flashings will be checked and repaired or replaced as required
  2. CLEANING AND TREATMENT
    The roof will be waterblasted to remove all dirt, loose and flaking materials. If moss and mould is present the roof will be treated with Kowhai Koklean Green, a slow release, biodegradable, anti-fungicide treatment before applying the Kowhai IronCoat Coating System
  3. RUST TREATMENT
    Any areas of red or white rust will be treated with Kowhai RustEtch to hold and prevent any further rusting
  4. IRONCOAT
    The Kowhai IronCoat Colourcoat will then be applied. IronCoat is a 100% acrylic, self priming, anti-corrosive, high build, made to the colour selected from our Kowhai Colour Chart
  5. HARDGLAZE
    Kowhai HardGlaze in gloss or satin will be applied to provide the ultimate protection against UV, weathering and dirt pickup. This completes the IronCoat roof protection system.

Decramastic – StoneCoat Coating System

  1. PREPARATION & REPAIRS
    Any dents in the chip coated tiles will be popped out where possible and tiles will be replaced where they cannot be repaired.
    Ridges, flashings and valleys will be checked and repaired or replaced as required
  2. CLEANING
    The roof will be soft washed. If there is mould and lichen growth the roof will be treated with Kowhai Koklean Green. This process may take a few weeks to kill off the grown before it can be removed
  3. RUST TREATMENT
    Any areas of rust will be treated with Kowhai RustEtch to hold and prevent any further rusting
  4. STONECOAT
    The Kowhai StoneCoat ColourCoat will then be applied. StoneCoat is a 100% acrylic, high build topcoat, encapsulating stone chips and made to the colour selected from our Kowhai Colour Chart.

Examples of our Kowhai Roof Coatings