My garage roof has a porous surface – will Rubba-Roof still work?
It is essential to prime all porous surfaces such as; cementious surfaces, concrete, render corrugated asbestos sheet & ferrous metals, terracota, etc. – with Rubba-Roof Primer, prior to application of our liquid rubber coating. Rubba-Roof Primer is not a viscous product & is therefore very quick & easy to apply. You must allow at least 28 days drying time for new concrete. Remove all laitance, all loose and foreign material and snots. All friable or dusting surfaces must be cleaned back to a firm base. Any plant or fungal growth should be removed completely. The application of a fungicidal wash is recommended if growth is excessive. Apply Rubba-Roof primer – on very absorbent surfaces, 2 applications of primer are recommended. For initial priming coat, Rubba-Roof Pro primer may be diluted up to 20% with Rubba-Roof Pro solvent. Follow by 1 or 2 applications of Rubba-Roof Pro.
