Underlayment is great for creating a tight seal before adding shingles or any other roofing. The biggest benefit of underlayment is preventing water damage.
I was going with asphalt shingles and most people said the synthetic roofing underlayment would be just fine. Here is the comparison I did on my own between the two types of roofing paper. Video on How To Install GAF Roof Deck Protection & Roofing Underlayment:
1000 sq. ft. FeltBuster Synthetic Roofing Underlayment Roll is rated 4.5 out of 5 by 133. Rated 3 out of 5 by Eddie from Supposed to be high traction surface yet I’m using it on a 7/12 roof pitch and still sliding. 30#...
We engineer and manufacture roof deck, form deck, composite deck and deck accessories, available in a variety of deck finishes, all meeting required steel deck certifications and in accordance with the specifications of the Steel Deck Institute.
Deck-Armor Premium Breathable Roof Deck Protection is a key part of the GAF Lifetime Roofing System, 1 and has earned the Good Housekeeping Seal. 2 Benefits Exceptionally Strong: At least 600% greater tear strength than standard #30 asphalt felt. 3
Deck Defense High Performance Synthetic Roof Underlayment features a durable construction that works with your shingles to help shield your home from moisture infiltration. Acts as a non-absorbent, secondary water-shedding barrier
Synthetic Roof Deck Protection provides a critical extra layer of protection between your shingles and your roof deck to help prevent water from causing damage to your roof structure, or to the inside of your home. Find out more.
Your roof is a big investment. Help protect it right from the start against water damage in the attic, which can cause mold growth and rotting deck boards. Deck Defense High Performance Synthetic Roof Underlayment features a durable construction that works with your shingles to help shield your home from moisture infiltration.