Rated 4.7 out of 5 by 70
Rated 5.0 out of 5.0 by Jedd Strong and Durable!
We are renovating an old 1920's farm house in Teton Valley Idaho. We have brutal long and cold winters. We are sticking to a tight budget and we needed to dry in the house for winter. The roof needed new sheeting and the budget did not allow for the actual roofing before winter. After reading reviews I chose to go with the Grace Tri-flex. Grace said that the product could be left exposed for up to six months. We installed the Tri-flex last October and just installed the Metal roof in June. It never leaked or tore even with our high winds and blizzards. Snow would never build up on the roof it would always slide right off.
I would not recommend going as long as we did with it exposed as the plastic cap nails begin to get brittle in the sun. Don't try to go cheap and use staples, Tri-flex will shrink in the sun and pull out staples.
It worked so well on the roof that I also used some of the left over Tri-flex to cover the gables where the siding was gone.
Great product. Buy it!
June 25, 2014
Rated 5.0 out of 5.0 by crisscross Great product
Light weight and easy to use. Super strong material. Left out in weather not a drop of water came through. Great product.
July 15, 2014
Rated 4.0 out of 5.0 by BGJG Excellent underlayment. Much better than felt. Easier for DIY, too.
If we ever re-roof again, we would definitely use this underlayment. Worth the extra few $ over using felt. Much easier to work with, more reliable when it rains & so much more durable. Love it! Also made a much smoother base for shingles.
October 19, 2012
Rated 4.0 out of 5.0 by jdolittle72 Lightweight, durable, easy to install.
I recievecd this shortly after ordering , but was delayed in installing. It is easy to store until needed. I was able to install by myself on 2 smaller roofs. I have yet to install on the main house, but the pitch of that roof will require assitance. It has been durable and did not require any adjustments thru a couple of rains after installation. I have used this on a previous site that withstood 80mph gusts back in the late spring. It is marked on the face for easy placement of fasteners.
October 15, 2013
Rated 5.0 out of 5.0 by flyhard Gret product
Everything is tested to extreme temperatures and wind in Phoenix and this underlayment has passed. 20 times stronger than the cheap paper they normally use in house construction here. Was very easy to apply and the cost was very reasonable.
August 28, 2014
Rated 5.0 out of 5.0 by Unclebigdog Great product for Washington winter
This roofing product will be a big boost for the upcoming winter here in western Washington.
November 4, 2014
Rated 5.0 out of 5.0 by Richard Excellent Product!
This stuff is well worth the money! I built a 36' L x 12' D covered porch and used this stuff to cover it so I could take my time in ordering the metal roofing and roof it myself. This stuff stood up to a few major thunderstorms like the roof had an actual roof on it, no leaks! It also made walking on the roof seem like you couldn't fall off due to the "grip" type surface. Will buy again and again for future builds.
July 23, 2013
Rated 5.0 out of 5.0 by Dave Beats the tar out of tar paper
I saw this while looking at roofing supplies online. I've used other Grace products in the past and like their quality. I'm replacing my roof and I wanted to be able to put down underlayment that would hold up to the elements for a month or two before I started laying down shingles. I've got to replace a lot of the sheathing on the roof deck before the rental on my dumpster runs out so the actual shingle installation will have to wait until I've finished the deck repairs. Tar paper will rip right off the roof in a stiff wind so when I saw this stuff I figured it was worth a shot based on other customer feedback. So far I have not been disappointed. It does require the use of button cap nails which takes longer to install, but I'm not complaining. My old roof was slicker than snot from all of the granules coming loose off the old shingles. Once I stripped off the old shingles and tar paper and used my leaf blower to clear off the debris I was able to install the Tri-Flex with no problem. I like that it's in 4-ft wide rolls vs. 3-ft so it does help offset the install time since you need fewer rows. Once nailed down, it provides a good gripping surface to walk on. It's got a tacky feel for a secure grip. I couldn't sit on my bare roof in my jeans without sliding or firmly planting a foot on the roof deck. With the Tri-Flex I have no problem sitting, standing, or walking without the need for special roofing footwear.
June 6, 2012