Home Garden

Custom Coatings For Roof Tile Restoration & Repair

Roof tiles are exposed to harsh sunlight, rain and snow accumulation. They can also be exposed to tree sap and mold growth during the summer months. These conditions can cause degradation and discoloration of the tiles that can lead to a shortened lifespan for your roofing materials. Custom coatings are used to restore the appearance of roof tiles and repair problems caused by weathering and mold growth.
  1. Custom Roof Coatings

    • Custom roof coatings are products specially selected for roofing tile problems. An initial inspection of the roof will determine not only obvious problems with the roof but other issues that may occur in the future because of the location of trees and other plants, weather, pollution effects and other environmental conditions. Minor repairs should always be done before applying coating materials.

    Preliminary Cleaning

    • Roof tiles should be cleaned thoroughly before the application of coating materials. Generally, pressure-washing is used to remove dirt, oils, plant saps and staining from the tiles. Using high-pressure settings can damage roof tiles and allow intrusion of moisture into joint areas, so never use a pressure setting higher than 1200 pounds per square inch. Professional pressure-washers with experience washing many kinds of roofing materials may use a higher setting. Chlorine bleach or a roofing algaecide product can be used to remove moss and mildew buildup to provide a clean surface for the coatings.

    Penetrating Binders

    • Once the surface of the roof tile has been thoroughly cleaned, the pores of the material are wide open to dirt and other accumulations. A roof tile penetrating binder is used to prevent dirt from setting into the surface of the material. The binder is generally a polymer-type coating that must be applied to the roof in temperatures around 50 degrees Fahrenheit, according to the CustomCoating website. This compound will prepare the surface for the application of custom color coatings or sealers.

    Color Blending and Restoring

    • If the cleaning reveals large patches of discolored roofing tiles, these can be repainted to match the rest of the roof by using specially formulated paints for roof materials. These paints are generally 100 percent acrylic coatings that can stand up to the constant weather exposure roofing tiles must endure.

    Sealers

    • After the color is matched to your satisfaction, seal the tiles to preserve the color and resist moisture and mildew damage to the tiles. Sealant coatings are generally 100 percent clear acrylic compounds that add years to the colored surface of the tile.

    Roof Coating Precautions

    • Always use coatings that are specifically designed for roof materials. Other types of paints and sealers may wear out quickly or may degrade roofing materials. Take particular care when walking on roof tiles, because they can break under heavy weight.