Roofing - Underlayment
G.A.P. Roofing
We are GAP, we are family owned, and roofing runs in our blood.
Grip-Rite
Grip-Rite coatings and sealants offer maximum protection designed to repair, seal, bond, coat or patch any roof project.
Grip-Rite ShingleLayment is the only roofing underlayment with the high performance of a synthetic underlayment, and the finished look of a shingled roof.
Grip-Rite® modified bitumen membranes are manufactured from formulas using only the highest quality materials, to meet or exceed, industry standards.
Owens Corning - Roof - Underlayment
For a roof to last, your roofing system must include protection from wind-driven rain.
Perma
PermaFelt Synthetic Roofing Felt delivers exceptional weather barrier performance compared to traditional asphalt products and other synthetic underlayments.
ZIP System
Don’t let the threat of leaks keep you up at night. Stick it to the rain with our new ZIP System™ waterproofing peel and stick roofing underlayment.