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NOTE TO EDITORS: The correct capitalization of the company name is TAMKO, due to the fact that it is an acronym. The letters stand for Texas, Arkansas, Missouri, Kansas and Oklahoma — the company’s original trade area when founded in 1944. TAMKO’s trade area is now all 50 states.

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TAMKO® TW Seam Tape Receives Critical Acclaim

TAMKO TW Seam Tape receives rave reviews from contractors and notoriety in industry publication

TW Seam Tape Self-Adhering Roof Deck Seam TapeTAMKO’s popular waterproofing product, TW Seam Tape, has earned not only a solid reputation among contractors, but a spot in the top 40 roofing products of 2019 by a leading construction industry magazine. As a part of TAMKO’s full line of waterproofing products, TW Seam Tape is used to close sheathing gaps on roof decks and also features an innovative design highlighting its ability to resist water entry and withstand high wind events.

“TW Seam Tape is a product that professionals can feel confident about providing to homeowners, and we’re proud of the success that contractors have had with the product,” said Stephen McNally, TAMKO Vice President of Sales and Marketing.

Changes to some local building codes and a new emphasis by inspectors in some states put a new focus on seam tape in 2019 and contractors who have used TAMKO’s TW Seam Tape have had high praise for the product.

TAMKO Pro Certified Contractor Neil Cunningham from Cunningham & Sons said, “After using other brands’ roof seam tape, I’ve come to the conclusion that TAMKO TW Seam Tape far exceeds everyone else’s product.”

TW Seam Tape is designed for application on a variety of surfaces, including OSB and plywood, and meets building code regulations in some areas along the Northeast where deck tape on sheathing gaps is required for all roofing installations. In addition to meeting demand for building codes, contractors have highly praised TAMKO’s TW Seam Tape for its superior performance, durability and ease of installation.

This popular product will be featured with a new interactive, hands-on display at the International Builders’ Show for building professionals to experience in person.

To learn more about TW Seam Tape and TAMKO’s full line of waterproofing products, visit TAMKO’s booth #N527, January 21-23, at the International Builders’ Show in Las Vegas, Nevada or visit


In 2024, TAMKO Building Products LLC celebrates 80 years in business. TAMKO is a leading independent manufacturer of residential roofing shingles crafted with American pride. At TAMKO, the popular Heritage® shingle series and Proline™ shingle series feature the best roofing colors on the market that are backed by a brand name recognized for its rich history, core values of honesty and integrity, quality products and processes, authority with building professionals and support for its community. For more information about TAMKO, visit our website at