Many new developments feature homes with pre-coated roof sheets. In some instances the colour of these roof sheets fades within a short space of time, and home-owners need to re-paint. Acrylic roof paints, provided that they are formulated on "adhesion promoted" pure acrylic binders, can be applied directly to these roof sheets without a primer. The use of an anti-corrosive primer, when it is not in direct contact with metal, is a pointless exercise - and simply adds to the cost of the job.
If the coating on the roof sheets is chalking, wiping down with Mineral Turps prior to re-coating is essential. Sanding down of any rusted areas to a bright metal finish, and spot priming only these areas with an Etch Primer, completes the surface preparation procedure.
Before using an acrylic roof paint on pre-coated roof sheets, check with your supplier whether the binder is "adhesion promoted."
If the coating on the roof sheets is chalking, wiping down with Mineral Turps prior to re-coating is essential. Sanding down of any rusted areas to a bright metal finish, and spot priming only these areas with an Etch Primer, completes the surface preparation procedure.
Before using an acrylic roof paint on pre-coated roof sheets, check with your supplier whether the binder is "adhesion promoted."
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