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Your cart is empty.The FT Synthetics Platinum HT Butyl Self Adhering Underlayment is a high-temperature self-adhered waterproofing membrane that features a black butyl rubber adhesive that is designed to be used as a secondary ice and water protection for steep slope roofing applications. It can be used under most roofing materials such as residential or commercial metal, primed cedar shakes, mechanically attached concrete, asphalt shingle, or composite shingles. Combined with Gripsot technology, the underlayment has a patented slip walking surface with high-temperature black butyl adhesive backing that allows for both low temperature (down to 32 degrees Fahrenheit) and rising deck adhesion and high-temperature stability (up to 265 degrees Fahrenheit). Backed by its limited lifetime warranty, the FT Synthetics high-temperature underlayment has a split release silicone liner for easy removal during installation. Shelf life of 18+ months. Split release silicone liner. 180 day UV resistance. Limited Lifetime Warranty.
Reader
Reviewed in the United States on September 24, 2023
I just had to re roof part of my house and I used both this and another name brand underlayment from the hardward store, and this stuff is far superior. The backing comes off easily, which wasn't the case with the other brand. Highly recommended.
JE
Reviewed in the United States on December 17, 2023
Just finally getting the roof structure done and this stuff is the icing on the cake. Goes down easy and will protect until I can get the standing seam on. Stuck no problems in the 45° weather we had today. Buy it!
kevina
Reviewed in the United States on November 12, 2023
This stuff goes down nice and actually sticks on cool days unlike most other crap. We put it down on a 55 to 60deg day and it stuck great.
Burt
Reviewed in the United States on October 14, 2023
Good stuff, easy to apply. Very sticky.Easy to use, very adhering, tuff. Worth my cost
DLW
Reviewed in the United States on August 27, 2022
Don’t know why this is not under every new roof !We have used it (and similar products) ever sincewe replaced our roof in the woods five years ago.This was used on a metal-roofed bunkhouse at alake property. As with three former roofs we’ve done this way, I expect it to last a long time and have few problems. Don’t roof without it!!!!
John W.
Reviewed in the United States on March 19, 2022
Great stuff to use under pvc roofing. Easy to lay over smoth plywood
musicmathguru
Reviewed in the United States on February 17, 2022
Do not expect roofers to promote peel and stick underlayments. Amazing how many are not familiar with it, and those that are fewer have ever installed any.1. It's a little more money, key word LITTLE2. It's a little more work, key word LITTLE3. This type of product will have much slower deterioration vs felt productsand the roofing industry does NOT want roofs to last, PERIOD.60+ years out of this wet suit like underlayment? Stay Tuned!
G.P.
Reviewed in the United States on April 27, 2022
I'm OLD (69) redoing a 10x14 shed 2/12 roof. wanted a better underlayment than tar paper- 0 experence with this stuff....... thoughts ...... great product...... STICKY AS HELL......hard to lay down smoothly but doableseems really good.
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