|Product Name:||Asphalt Felt Paper For Shingle Underlayment||Type:||No.15/No.30|
|Standard:||ASTM D4869/ASTM D226||Thickness:||0.4mm-1.0mm|
|Width:||36inch||Production Capacity:||500rolls Per Day|
|Ingredients:||Paper And Asphalt||Technics:||Impregnation|
sbs underlayment for roofing,
asphalt felt paper sbs underlayment,
36 sbs underlayment
Asphalt Felt Paper For Roofing Shingle Underlayment
Asphalt felt paper has been the go-to substrate for roof shingles for more than a century, and it's still quite popular because of how well it works and how affordable it is.
Traditionally, asphalt felt underlayment has been 36inch wide, 15lb or 30lb felt impregnated paper, and it is used as a weather resistant layer over the entire roof surface. It keeps sheathing dry until shingles are installed, serves as a backup layer when water gets under shingles or flashing, and prolongs shingle life by separating sheathing and shingles. (Without underlayment, shingle asphalt can leech into wood sheathing, or resins in sheathing can degrade the shingle.)
Heavy duty, 30lb felt paper is often specified in high-wear, high-water areas such as eaves and valleys. A standard roll of 3-ft wide, 15lb felt paper covers roughly 432 sq.ft, the same size roll of 3-ft wide, 30lb paper covers only 216 sq.ft because it's roughly twice as thick.
|ASTM D4869 15#||ASTM D226 15#|
|36 in||36 in|
|432 ft2||432 ft2|
Contact Person: Angela