Underlayment Products

While tile is ultimately the first line of defense against the elements on a roof installation, underlayments play a critical role by providing a secondary level of waterproofing protection directly on top of the wood roof deck. As a crucial barrier that contributes to the performance and longevity of the entire roof system, it is important to choose the right underlayment for your roof and your particular climate.

SwiftGuard® High-Performance Synthetic Roof Underlayment

SwiftGuard® Roof Underlayment is a high-performance synthetic roof underlayment for all steep-slope roofing materials including tile, steel, and shingles, as well as natural and composite slates and shakes. SwiftGuard® Roof Underlayment includes innovative, patented nail gasketing technology for superior moisture resistance. A high grip backing, and non-woven, thermally embossed facer provide increased deck grab and superior walkability.

See More
SwiftGuard Underlayment
Sol-R-Skin Blue Underlayment

Sol-R-Skin™ BLUE

Sol-R-Skin BLUE is a Fire Resistant, Thermal Insulating, & Reflective Roof Underlayment designed specifically to be a companion to our Unified Steel (Stone Coated Roofing) & Newpoint Concrete Roof Tile products. Sol-R-Skin BLUE provides maximum protection while simplifying the installation for roofing contractors.

See More

Westlake Royal™ TileSeal™ HT

A self adhering, modified asphalt underlayment that is easy to install and provides a slip resistant surface that seals around nail penetrations, making it the preferred choice for tile roofs.

See More

GatorSeal®

GatorSeal® Underlayment is a heavy duty, modified asphalt reinforced underlayment that seals around nail penetrations and protects against ice dams and wind driven rain.

See More

Citadel® Plus

Citadel® Plus SBS modified asphalt core self-seals around nail or screw penetrations when mechanically fixing roofing. Seals to the roof deck providing additional security against potential leaks compared to mechanically fastened base sheets.

See More

Westlake Royal™ Ply 40

Westlake Royal Roofing Components Ply 40 is an SBS modified fiberglass reinforced underlayment/base sheet for tile, shingle or shake.

See More

Westlake Royal ORG-Ply 40™

Westlake Royal ORG-Ply 40™ is an SBS modified asphalt organic reinforced underlayment/base sheet for tile, shingle or shake.

See More
Westlake Royal ORG-Ply 40

Westlake Royal™ MetalSeal HT

A high temperature ice and water shield underlayment that is self-adhering. Made from SBS modified asphalt, it is easy to install and provides a slip resistant surface that seals around nail penetrations, making it the preferred choice for metal roofs.

See More