1. How Much Roof Coating Do You Need? In order to estimate how much roof coating you’ll need, you first have to estimate the total square footage of your roof’ssurface. Measure the length and width of each plane on the roof, including dormers. Then, multiply length x width toget the square footage of each plane.

Roof Maintenance Coating Systems This guide covers proper application tips when spraying single component, moisture-cured urethane elastomeric coatings. Airless spray equipment is an effective method of application particularly on large areas and irregular or vertical surfaces. Gas powered spray equipment can also be used (consult with equipment manufacturer for recommendations). Air- atomized application is not