Here in hawaii metal roofing for water catchment is common.
Potable water roof coating.
Stretches 1000 with 95 recovery.
The manufacturer has verified that this product is.
If potable water is needed take care in selecting materials and elastomeric roof coatings which will come into contact with the water as it is collected since some impurities can be picked up by the rainwater as it travels through the collection system.
It is safe for potable water catchment service and is designed for use as a protective and waterproof seamless membrane for pitched roof surfaces ultraviolet protection of existing roofing materials or as a finish coat over weather barrier 1530 base coat.
The american rainwater catchment systems association arcsa advises that standing seam roofs powder coated or enameled galvalume zinc aluminum alloy with non toxic baked or enamel finish are appropriate for potable use with non toxic finishes and appropriate components tanks and post tank treatment.
Elastuff 120 is a 100 solids 2 part polyurethane elastomer coating for waterproofing and protecting all types of surfaces.
It s the type of roof i have on my own house.
Spray liquid pour or brush roller applied at outside temperature no heat source or flame required.
Commercial roofs are our speciality rtt sealant is a potable water certified as nzs4020 2500 elastomeric coating engineered to provide exceptional adhesion elasticity and protective properties.
Gacoelastomeric silicone roof coating is a high quality single component elastomeric coating used to create a long lasting waterproof membrane on a flat or a sloped roof.
Arc s potable water certified industrial metal coating products meet the demanding requirements of the nsf 61 standard while also protecting plant systems from corrosion and erosion.
Black jack roof gard 700 55 gallon elastomeric reflective roof coating 7 year limited warranty item 1299404.
Black jack ultra roof 1000 55 gallon elastomeric reflective roof coating 10 year limited warranty item 1299406.
When our roof was new the water it collected was clear and smelled clean.
The equipment and systems that collect treat and transport it must be protected to ensure reliable performance and water quality.
The coating is made from silicone allowing for superior protection against permanent ponding water uv rays and temperature extremes.
For pricing and availability.
Lead free mercury free cadmium free copper free antimony free this likely makes it a living building challenge compliant product.
Energyguard silicone coating energymax silicone coating.
An example of this can be seen on the website of my island s main supplier hpm.
