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Treat concrete roofs to protect against leaking
Clean the roof thoroughly to remove any dust or debris. Remove fungus with an appropriate solution. If new concrete is ‘glossy’ smooth or un-hydrated cement powder is still on the surface use an etching solution. [see Easy DIY Etching Solution] refer to tip and mix in a plastic container. Rinse with clean water and allow to dry.
No primer coat is required.
Important! Check the weather forecast to ensure you have good dry conditions and allow enough time for coatings to dry.
Use Ulttima Roof Coating allowing for 1 gal per 50 sq. ft. of roof area. This is not a normal roof paint but is a liquid plastic that must be applied in layers to the correct thickness – about 1mm total wet thickness or about 2-3 coats.
First Coat: Thin a suitable quantity for the first layer with about 25% water and apply with a brush, broom or roller and allow to dry (about 1 hour).
Second Coat: Apply normal strength in a horizontal direction to the water flow and allow to dry (4-6 hours/ or leave overnight).
Final Coat: Apply normal strength in the direction of the water flow and allow to fully dry to achieve leak-proof properties.
Don’t be tempted to apply in 1 thick coat which will not be as resilient and may not dry properly so will likely be removed by rain or heavy dew.
Continue your conversation in the chat or select one of the following:
From Aluminum to Zinc and everything in between, this handy guide is a life-saver with specifications from our Vice President of Technical and Head of Innovation (who has been designing formulas specifically for the Caribbean environment for 30 years) identifying the exact coating system you’ll need to guarantee success in coating virtually any surface.
This guide details coating systems to effectively colour, coat and protect virtually any surface encountered in standard construction, renovation and maintenance environments. It provides an outline of the preparation required for successful coating and identifies recommended coating systems for a variety of substrates as well as how to effectively solve surface challenges.
Note: While every effort is made to detail accurate and effective systems, specific project conditions are unknown and can be highly variable. This guide is therefore limited and outlines generally applicable principles. It is not a specification.
While Harris/ B-H Paints do supply specialist High Performance Coatings (HPCs) these fall outside the scope of this guide. HPCs are a class of technically advanced protective coatings designed to give superior levels of impact, abrasion and corrosion protection designed for aggressive environments including high traffic areas and in commercial and industrial applications.
