SpecTips: Reduce TPO Cold Welds and Ensure Stronger Seams
Thermoplastics, and specifically TPO membrane, continue to dominate the low-slope roofing industry as the most popular single-ply membrane option. TPO’s inherent thermoplastic properties allow the seams to be chemically bonded using heat, resulting in a seam that, when done properly, is the strongest part of the membrane – akin to welding metal. However, challenges arise when contaminants such as dirt or adhesive overspray residue contaminates the TPO seaming area, leading to compromised welds known as 'cold welds.' Despite the diligent efforts of contractors and membrane manufacturers who employ various field fixes, trade secrets, and extensive cleaning procedures, contaminated seams persist as a significant cause of leaks and subsequent warranty claims.
Carlisle SynTec Systems’ SeamShield technology is a groundbreaking innovation designed to elevate efficiency and quality in TPO roofing installations. SeamShield is a factory-applied protective film placed on both the top and bottom lap areas of TPO sheets, safeguarding the welding zones throughout the installation process. This revolutionary solution simplifies the seaming process: when it's time to weld, the SeamShield protective film effortlessly peels away, akin to removing masking tape, revealing a pristine, uncontaminated seam that is instantly ready for welding. SeamShield not only saves valuable time and resources, it also removes the subjectivity around a clean seam while increasing the welds’ consistency and significantly reducing the occurrence of cold welds.
Moreover, SeamShield enhances weld strength by 10% compared to exposed seams, ensuring long-lasting durability and performance. Embracing environmental responsibility, SeamShield reduces the need for seam-cleaning materials like splice wipes and chemicals, presenting a greener alternative without compromising seam quality.
Compatible with fully adhered, mechanically fastened, and induction-welded TPO installations, SeamShield offers versatility across various project requirements. To ensure seam weld consistency and reduction of cold welds on your next TPO project, ensure your specifications require Carlisle’s SeamShield Technology.
SPECTIP:
When specifying roof membranes with SeamShield:
In Division 7 Section for the project’s roofing membrane Section: TPO Membrane Roofing – Section 075423, add language for “Manufacturer’s membrane supplied with pre-applied film at seam areas”.
Additional Resources:
Carlisle’s Sure-Weld® TPO with SeamShield Sell Sheet
SeamShield Voice of the Customer Video
Carlisle SynTec Systems’ SeamShield technology is a groundbreaking innovation designed to elevate efficiency and quality in TPO roofing installations. SeamShield is a factory-applied protective film placed on both the top and bottom lap areas of TPO sheets, safeguarding the welding zones throughout the installation process. This revolutionary solution simplifies the seaming process: when it's time to weld, the SeamShield protective film effortlessly peels away, akin to removing masking tape, revealing a pristine, uncontaminated seam that is instantly ready for welding. SeamShield not only saves valuable time and resources, it also removes the subjectivity around a clean seam while increasing the welds’ consistency and significantly reducing the occurrence of cold welds.
Moreover, SeamShield enhances weld strength by 10% compared to exposed seams, ensuring long-lasting durability and performance. Embracing environmental responsibility, SeamShield reduces the need for seam-cleaning materials like splice wipes and chemicals, presenting a greener alternative without compromising seam quality.
Compatible with fully adhered, mechanically fastened, and induction-welded TPO installations, SeamShield offers versatility across various project requirements. To ensure seam weld consistency and reduction of cold welds on your next TPO project, ensure your specifications require Carlisle’s SeamShield Technology.
SPECTIP:
When specifying roof membranes with SeamShield:
In Division 7 Section for the project’s roofing membrane Section: TPO Membrane Roofing – Section 075423, add language for “Manufacturer’s membrane supplied with pre-applied film at seam areas”.
Additional Resources:
Carlisle’s Sure-Weld® TPO with SeamShield Sell Sheet
SeamShield Voice of the Customer Video
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