The 15 pound was for lighter weight projects while the 30 offered more heavy duty protection.
15 roofing felt.
15 asphalt felt roofing underlayment provides an extra layer of protection between your shingles and your roof deck.
Plywood or osb roof deck so 15 20 or 30 will work for any shingle roof the type i recommend depends on roof slope.
In my opinion felt paper is a vapor barrier plus keeps the oils in the shingles from leaching out and into the wood substrate i e.
It is designed as underlayment for roofs.
Felt roofing underlayment is typically available in two types.
For many years roofers used asphalt saturated felt under roofing shingles and it was historically available in two standard weights.
For pricing and availability.
15 pounds per hundred square feet and 30 pounds per hundred square feet.
Gaf feltbuster 48 in x 250 ft 1000 sq ft felt roof underlayment.
36 in x 144 ft 432 sq ft felt roof underlayment.
30 felt is typically thicker stronger and may be less prone to tearing or ripping off during installation or weather events.
This underlayment features excellent asphalt saturation for effective waterproofing.
No 15 felt and no.
Asphalt saturated heavy duty roofing felt is available in 15 and 30 pound weights.
Saturated roofing felt and is suitable for commercial and residential uses.
The main advantage of using felt roofing underlayment is cost.
Felt roofing underlayment.
Tarah asphalt product 15 astim d226 216 sq.
Organic dry felt is made from 100 post consumer recycled material.
Tarah asphalt product 15 astim d226 216 sq.
Roofing paper is an essential layer in the roofing process as it acts as extra protection from the elements.
For pricing and availability.