How to Apply CertaSeal INT Sealant CertaSeal INT™ Sealant CertaSeal INT™ from CertainTeed is a spray-applied, water-based acrylic latex sealant that is quick and easy to install and requires minimal personal protection equipment. Play Close Related Content Residential Roofing Residential Roofing Siding Introducing 2024 U.S. Industry Trend Report A comprehensive preview of upcoming trends in the home building and renovation industry. Learn More Residential Roofing Siding Introducing 2024 U.S. Industry Trend Report Residential Roofing CertainTeed NailTrak® for Fast, Accurate, and Visible Installation Residential Roofing Ice Storms Residential Roofing Sheathing Building Insulation Moisture Management & Water Resistance Residential Roofing What are the components of a Residential Roof?