|Type:||Asphalt Saturated Organic Roofing Felt||Standard:||ASTM D226 #30|
black roofing paper,
felt paper underlayment
ASTM Standard Asphalt Roofing Felt Paper D226 #30 Shingles Underlayment
Roofing felt paper is made by organic felt impregnated with high quality asphalt. It is used as shingles underlayment, functioned as secondary waterproof barrier. It is crucial for sloped wooden roofs.
1. Act as a secondary water-shedding barrier.
2. Repels moisture and helps provide protection against water infiltration.
3. High asphalt saturation.
4. Highly visible alignment lines.
5. High tear strength.
6. Anti-slip while installation.
|Standard||ASTM D226 #30|
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