While felt is weighed by pounds per roofing square 100 square feet synthetics are rated by grams per square meter gsm.
Roofing felt vs synthetic.
One of the main barriers to using synthetic underlayment for roofing contractors is the cost is higher per square foot than traditional felt.
Epilay plasfelt is specifically manufactured to replace the 15 felt and 30 felt.
Felt provides an excellent seepage barrier 2 especially when applied in thicker layers.
The synthetic material is much for resistant to tearing than the traditional felt.
Synthetic underlayment come in 10 sq.
Rolls 48 wide as compared to 30 felt 2 sq.
There are four main advantages to installing synthetic roof underlayment rather than felt.
Residential and commercial roofing shingles slate roof ventilation roof underlayments asphaltic and tpo roof membranes.
Weighs 16 to 27 pounds per roofing square.
Epilay plasfelt roofing underlayment with its advanced engineering is highly recommended for mechanically attached coated woven synthetic roofing underlayment for sloped roofs.
Weighs 7 5 to 12 5 pounds per roofing square 30 felt.
Typically roofing crews enjoy better footing on synthetic materials with special non slip surfaces.
Since it is less likely to rip there is a lower risk of potential water infiltration in the future.
However companies such as interwrap have recently introduced new products that offer great durability and competitive prices.
Some of the major benefits to synthetic underlayment are that it is.
Felt underlayment 15 felt.
Epilay plasfelt is 25 times stronger than 15 felt and 5x lighter than 15 felt.
A 66 foot roll of synthetic underlayment will set you back about 86.
Compared to felt synthetic roofing underlayment is.
Roofing shingles and materials plus factory certified roofers including ratings from real homeowners from north america s largest roofing manufacturer.
By contrast roofing felt is often more slippery particularly when the surface is slightly moist.
Synthetic underlayment comes in longer and wider rolls than felt.
Synthetic roof underlayment is extremely durable.
Synthetic underlayment however requires cap nails or cap staples.
As of publication you can purchase a 72 foot roll of 30 pound roofing felt for around 15.
Value of a certified roofing contractor expert advice is important when you install a new roof that s intended to protect your home for decades.