Underlayment Tech Sheets
Underlayment Tech Sheets
Help protect your home and roof system from wind-driven rain and damaging ice dams
SMOOTH is an SBS modified seld-adhering membrane reinforced with non-woven fiberglass mat for extra strength and durability
PRIMO-GUARD is a self-adhesive roofing underlayment constructed of a glass mat carrier coated with a blend of SBS polymers, asphalt, and additives.