When there’s a nagging roof leak that others can’t fix, or when you don’t want to take your chances, use Through the ROOF! Its unique co-polymer rubber formula creates a permanent seal, even when applied in the middle of a rain storm. (It works great on dry surfaces, too.) Through the ROOF! will stick to almost any roofing surface – metal, plastic, asphalt, wood, concrete, and more. Plus, it won’t freeze.
If dirt or oils are present on the substrate, wash with any household cleaner, rinse to remove and allow to thoroughly dry. Insert backer rod into joints deeper than 1/2” to provide for proper sealant depth and a stronger, longer lasting seal. Gun Through the Roof into the joint. Tool for a smoother bead using mineral spirits or soapy water.