seam-logoAs the interior protection industry grows and evolves, fire marshals, safety personnel, and insurance companies continue to express concerns about suspended cover impeding fire sprinkler systems.

Traditional methods of protection have the potential to impair the system’s functionality. Installing suspended cover below the sprinklers could delay its response to the fire or prevent the water from reaching the fire. Installing suspended cover above the sprinklers can be more costly and complicated due to the increased amount of penetrations to work around. There is also the risk that the cover could fall onto the sprinkler heads during a fire.

That is why TuffWrap developed, and only uses, SmartSeam® for suspended cover projects.

SmartSeam is:

Effective in protecting against dust and debris during reroofing.

Antimicrobial, antistatic and flame resistant.

Classified by UL to 723S and meets NFPA 13. Learn more about NFPA 13.

Designed, produced and installed only by TuffWrap®

How does SmartSeam work?

What makes SmartSeam special is its heat-reactive seam, an advanced technology engineered by TuffWrap. When the seam is activated by the heat of a fire, the suspended cover panels open, permitting the sprinklers to function as designed.

After three years, close to one thousand tests, and extensive research and development, SmartSeam is Classified by UL to 723S for installation beneath sprinkler systems.  

Understanding the details. Having a product that is Classified by UL to 723S and therefore meets NFPA 13 is an important process that we as interior protection providers take very seriously. Here’s what you need to know:

Research and Development: SmartSeam is a proprietary product invented by an in-house team at TuffWrap. Not only is the seam critical to its functionality, the configuration of the poly panels and how it is installed are important as well. Every aspect of the final solution was taken into consideration in order for it to work properly.

Manufacturing process: SmartSeam is made in the USA. It is TuffWrap’s own invention and therefore we also designed and built equipment specifically to become the manufacturer of this product. Our machinery is “one of a kind” and not currently available for use anywhere else. We are inspected by an independent laboratory four times a year.

Meeting the standards: To meet NFPA 13, the suspended cover product has to be Classified to UL 723S for drop ceilings. In our industry, that is the only standard and test that qualifies.

UL Certifications Information


Polyethylene film used as a stretch ceiling system, identified as TuffWrap® with Smart Seam.

Flame spread 0*
Smoke developed 75 – 100*
* May be used beneath sprinklers in accordance with application instructions supplied with product, subject to the authorities having jurisdiction.

Reprinted from the Online Certifications Directory with permission from UL.  © 2020 UL LLC

Click here to login to UL’s database.      

If you have an account with UL, click here to be taken to the information.

SmartSeam is also evaluated and listed by the IAPMO.   Click here to view the full IAPMO report.

Want to learn more about specific applications for SmartSeam? 

Read our case study here