Specialty Underlayments

TAMKO TW Underlayment

Some roofing projects require underlayments designed specifically for extreme conditions.

When standard underlayments don’t meet your needs, look to TAMKO’s specialty roof underlayments.

Our Products

TW Underlayment

A self-adhering rubberized asphalt sheet membrane with a polymer film on the surface and a removable treated release film on the adhesive side. Surface is textured for skid resistance and can be left exposed for up to 120 days.
Product Details
Application Instructions
TW Underlayment Application Instructions
Data Sheets
TW Underlayment Data Sheet
Safety Data Sheet
Flash and Moisture Wraps SDS
Technical Product Information
Florida Building Code Approval

WATERPROOFING PRODUCTS BEGIN TO AGE AS SOON AS THEY ARE EXPOSED TO NATURE, AND BUILDINGS EXPERIENCE AGING FACTORS DIFFERENTLY. BECAUSE IT IS DIFFICULT TO PREDICT HOW LONG WATERPROOFING PRODUCTS WILL LAST, TAMKO OFFERS A LIMITED WARRANTY THAT INCLUDES A BINDING ARBITRATION CLAUSE AND OTHER TERMS AND CONDITIONS WHICH ARE INCORPORATED HEREIN BY REFERENCE. YOU MAY OBTAIN A COPY OF THE LIMITED WARRANTY AT TAMKO.COM OR BY CALLING 1-800-641-4691.

IMPORTANT SAFETY INFORMATION: Use personal fall protection devices when working on a roof. Personal fall protection devices, safety glasses and hearing protection must always be used when applying this product. Moisture, frost or debris will decrease the traction when walking on this product. Applicator safety is of utmost importance.

TW Metal and Tile Underlayment

A fiberglass-reinforced self-adhering rubberized asphalt sheet membrane with a polymer film on the surface. Features a removable treated release film on the adhesive side for convenient installation and handling. TW Metal & Tile Underlayment can be left exposed for up to 120 days and is used under metal roofs, mechanically fastened tile, slate, wood shakes, asphalt and composite shingles.

Product Details

WATERPROOFING PRODUCTS BEGIN TO AGE AS SOON AS THEY ARE EXPOSED TO NATURE, AND BUILDINGS EXPERIENCE AGING FACTORS DIFFERENTLY. BECAUSE IT IS DIFFICULT TO PREDICT HOW LONG WATERPROOFING PRODUCTS WILL LAST, TAMKO OFFERS A LIMITED WARRANTY THAT INCLUDES A BINDING ARBITRATION CLAUSE AND OTHER TERMS AND CONDITIONS WHICH ARE INCORPORATED HEREIN BY REFERENCE. YOU MAY OBTAIN A COPY OF THE LIMITED WARRANTY AT TAMKO.COM OR BY CALLING 1-800-641-4691.

IMPORTANT SAFETY INFORMATION: Use personal fall protection devices when working on a roof. Personal fall protection devices, safety glasses and hearing protection must always be used when applying this product. Moisture, frost or debris will decrease the traction when walking on this product. Applicator safety is of utmost importance.