This process was developed to refinish old concrete roof tile, clay tile
and fiber cement tile. It has proven to be effective at enhancing the appearance of a roof and to be durable against a variety
of environmental conditions. Sometimes, moss and algae which has built up over 10 years.
In addition to enhancing appearance, a refinished roof can save energy by using a special made Coating
and/or gloss topcoat, and is a much lower cost alternative to replacing a roof. The refinishing process consists
of the following five steps:
The first stepis for the
homeowner and roof restoration specialist to evaluate the condition of the roof and to agree to specific remedies to fix fundamental
problems, such as leaks or broken tiles. Then the roofing specialist must prepare the house for power washing the roof by
protecting adjacent surfaces from runoff, staining or over spray. Polyfilm, masking tape, cardboard and gutter-guards maybe
required in protecting adjacent areas.
The second step(If
needed) is two power washing cycles at 4000 PSI with a biocide treatment in between. This is done to remove dirt, algae, efflorescence,
corrupted slurry coat and other surface contaminants.
first power washing, the roof tile is treated with bleach in those areas effected by mold, algae, lichen, moss, and other
plant life. After allowing the bleach and sunlight to kill-off microbes, a second power washing is completed to remove any
remaining contamination including residual bleach.
step is to apply two penetrating binder coats that strengthen the upper surface of the tile and allow good adhesion
of the subsequent color coats. The first application at 0.2 gallon per square is usually absorbed quickly and may
need to dry at least an hour before applying the second coat. These two coats are best allowed to dry overnight before
continuing with application of the color coat. This polymer binder prevents subsequent coatings from peeling, blistering or
removal by scuffing.
The fourth stepis application
of a 100% pure acrylic color coat that contains a biocide to prevent unsightly organic growth. The color coat is applied to
insure uniform color appearance and uniform film build. With sixteen colors available there is likely one that suits a homeowner’s
taste. The application of two or more colors can be done to achieve a ‘flashed’ or multi-colored blend appearance.
Special order colors and custom colors can be matched with a minimum order.
fifth and final stepis the application of a single clear gloss topcoat. The topcoat is a hard 100% acrylic
polymer coating, including a biocide to control unsightly organic growth, that increases the life of the finish nearly twofold
and it gives a uniform gloss to the entire roof surface. A low sheen clear topcoat can be used which gives a softer lower