Whats the difference between #15 and #30 felt paper?
Whats the difference between #15 and #30 felt paper?
While #15 is a good option for most roofing jobs, #30 provides more protection and performance for steep roofs and flat roofs. ... But if your roof has a steep pitch, #30 is a better option because it is thicker and tears less during installation. With #30 you get a thicker layer of underlayment and protection.Jun 27, 2017
What is #30 felt paper?
#30 Saturated Roof Felt The roof felts are asphalt saturated and are manufactured with a high-grade organic mat. #30 Saturated Felt underlayment is specified for use as an underlayment between the roof deck and the shingles.
What does 30lb felt mean?
Historically, roofing felt paperfelt paperCommon grades include 10-, 20-, 30-, and 60-minute. The higher the rating, the heavier and more moisture-resistant the paper. A typical 20-minute paper will weigh about 3.3 lbs per square, a 30-minute paper 3.75, and a 60-minute paper about 6.https://en.wikipedia.org › wiki › Tar_paperTar paper - Wikipedia was named for weight. 15-lb felt paper weighed 15 pounds per 100 sq. ft. (one roofing square) and 30-lb felt paper weighed 30 pounds per square.Feb 20, 2018
When should I use 30lb felt?
Weight Matters The best weight for roofing felt is the 30-pound product, because it provides thicker and stronger footing for roofers that does not tear out, especially on steep roofs where footing is critical.