Ratings & Reviews for RELIABILT Roof deck protection 48-in x 100-ft 400-sq ft Synthetic Roof Underlayment

Synthetic Roofing Underlayment

This Synthetic Roofing Underlayment is such a Great product! Very strong, easy and safe to walk on, easy to install with plastic cap nails. Make sure you have a sharp knife when it comes time to cut

Great Product

Easy to install. Would purchase again.

Clean and Easy

Used this for roofing a shed. It has nice layout lines that make it easy for alignment and nailing off. Better than the old fashioned black tar lined paper

Best underlayment on market

Having to redo our house roof , we chose to use relibuilt roofing synthetic underlayment and could not be happier with that choice!! It is a great product that honestly worked better than we ever thought it would. We started tearing off the old roof and just finished putting on the underlayment and then the rain came!! For a week in a half it rained and wind blow alot too. But this product weathered the storm amazing and was not a single leak underneath it. Then we were able to finish the roo...

Lightweight but strong!

A good alternative to conventional tar paper. The great part is that one roll goes much further that regular roofing felt. The roll is quite light and I found it very easy to carry up the ladder. Only downside I found was, being much lighter, the wind will move it around if you don’t get it tacked down quickly - On a windy day it may take an extra person to help hold it down while it’s being fastened. Otherwise though, I am very impressed with its durability for being so thin and light weight. E...

Easy & flexible roof felt replacement w/Reliabilt

Due to needing to replace the felt on one plane of my roof, I decided to give this felt replacement/synthetic roof underlayment a try. This Reliabilt product has a lot going for it compared to the standard tar-based choice. The positives include lightweight, thin & flexible, easily cuts with scissors and much less messy. It seems to be pretty resilient, but time will tell. It has a 20 year limited warranty. The standard product may help more with deadening noise (just a guess based on thick...

Worked great!

Very happy with getting this underlayment. Tough material did not tear, and had an impressive grip when walking on it. It was easy to carry up, rolled out nice and flat. The the marks for nails came in handy. I've used several brands prior, and this one is up there in quality. Good price too.

Impressed with quality!

Was very impressed with the quality of this underlayment. Worth switching!

Great product

We are using this on a new shed we are building. And though it really hasn't been in place long enough to see how it holds up over time and rain it seems like a good product. It's pretty thin and rolls nicely. We had no problems applying it. We will update over time.

It Works

Worked out well I've used it on a couple of projects so far had replaced the exhaust fan in my bathroom then a new roof on my shed. Perform as expected in both cases.

Noticeably Cooler!

We were replacing our roof, and I knew we were going to run out of our black felt paper part way through. I decided to try the Reliabilt Synthetic Roof Underlayment because my feet were getting so hot while we were working on the roof, I thought we should give it a shot and see if it would make the temperatures on the roof more bearable. Its light grey color really made a difference in the roof temperature while installing it; the grey was also great because it wasn’t so light that it reflecte...

Under linement

This under linement is very nice and gives a use the ability to layout how they want to do there project because of the layout on it. It shows you were to place nails for maximum effect of the product.

Built to last and have no doubt it will not leak

I'll admit I was hesitant to try a synthetic roof underlayment as good old tar paper has been around since the dawn of time and has years of evidence to its ability to do the job. However when I got this roll of tar paper I was eager to feel it and this by no means is your grandpa's underlayment. This is heavy stuff and is self sealing and textured to make it safe to walk on. The fact you can walk on it shows how durable it is. If you ever stripped an old roof with 20-25 years of use you know th...

Great

I used this for my shed that i built and so far so good. I liked how easy it was to install even for a beginner very sturdy and strong hopefully lasts as long as the shed is there

Competitive alternative to paper/felt. Recommended

In my application, I was trying to cover the 4'x24' roof of a lean-to shed. The RliaBuilt synthetic roofing underlayment worked very well and I would wholeheartedly recommend this material to anyone with a similar project. There are a number of characteristics that impressed me about the underlayment. First, was the weight of the product while I was trying to maneuver it on top of the structure. This comes in rolls of 250 feet and moving 1000 square feet of material is not going to be easy but ...

A large improvement from tar paper

Synthetic roofing underlayment is definitely the way to go. This stuff is way better than the old tar paper of past days. No more ripping and tearing from movement on the roof. Definitely recommended.

Very Durable & Well Made

This underlayment is amazing. Tear resistant. Waterproof. I had someone helping me that isn't as knowledgeable, the markings on the underlayment tells you exactly where to put the fasteners and what kind. Even has an overlap pattern. Super easy to understand the instructions. Very durable, I haven't seen an underlayment made as well as this one. I will be using this on my next project as well.

Rolls out smooth and easy.

Really solid product. Rolls out smooth. Has pattern for nailing. Costs a little more than felt but worth the difference in my opinion. Would recommend!

Easy user friendly underlayment

The synthetic roofing underlayment from reliabilt is much easy and less brittle and messing than traditional tar paper. It won't tear and it is supposed to be cooler in temperature than tar. This underlayment makes installation extremely easy with nail targets and overlapping patterns to remove ask guesswork.

Great for new and redos of your roof-will last

Was looking for some underlayment to redo my roof on my back porch and this product fit the bill well - it was affordable and durable. It installed easily and looks like it will hold up well. It is easy to install and rolls flat without much extra work, as some of them require laying flat for some time.