Global Roof Coating Market Assessment, By Substrate [Asphalt, Metal, Bitumen, Plastic, Others], Type [Elastomeric, Bituminous, Acrylic, Silicone, Epoxy, Others], Technology [Water-Based, Solvent-Based], Roof Type [Flat Roof, Slope Roof], End-user Sector [Residential, Non-residential], By Region, Opportunities and Forecast, 2017-2031