What is astm d 4869?
ASTM D4869 is the Standard Specification for Asphalt-Saturated Organic Felt Underlayment Used in Steep Slope Roofing and lists four types of felts: Type 1 (8 pound felt, but typically labeled as #15 or No. 15), Type II, Type III and Type IV (26 pound felt, but typically labeled as #30 or No.
What is ASTM d226 Type II underlayment?
GMC 30 ASTM D 226 TYPE II authentic asphalt saturated organic felt underlayment is used as a breathable secondary weather resistant barrier when applied over the roof deck prior to the installation of the primary roofing product.
What is astm felt paper?
ASTM is the standard specification and provides certain test methods for Asphalt-Saturated Organic Felt Shingle Underlayment used in roofing and applies to material used as underlayment in steep-slope roof systems. The standard addresses material characteristics and physical property requirements.
What is ASTM D1970?
ASTM D1970-09 is the Standard Specification for Self-Adhering Polymer Modified Bituminous Sheet Materials used as Steep Roofing Underlayment for Ice Dam Protection. Section 8.9 of this test method specifically refers to Self Sealability of underlayment sheets in roofing applications. .
What is asphalt paper used for?
Unsourced material may be challenged and removed. Tar paper is a heavy-duty paper used in construction. Tar paper is made by impregnating paper or fiberglass mat with tar, producing a waterproof material useful for roof construction.
What does ASTM stand for?
American Society for Testing and Materials
Home » Resources » Glossary » American Society for Testing and Materials (ASTM) Currently known as ASTM International, “American Society for Testing and Materials”, ASTM is a developer of international voluntary consensus standards.
What is ASTM D3909?
ASTM D3909 / D3909M – 14 Standard Specification for Asphalt Roll Roofing (Glass Felt) Surfaced With Mineral Granules.
What is Grade D building paper?
Grade D felt paper is used by the construction industry in the United States as the base for shingles. The United States Federal Government requires specific specifications for a felt paper to be given the Grade D stamp of approval. It is rated the best felt paper for roof construction.
Is tar paper better than Tyvek?
Tyvek offers more permeability but less longevity, and you find it near the exterior siding. Tar paper withstands high moisture levels, but it can crack in freezing temperatures. That’s why you usually find it on the interior walls.
What is ASTM standard for mask?
The F3502 standard establishes minimum performance, design, labeling, and care requirements for those face masks, termed “barrier face coverings.” In terms of performance, the standard specifies how products should perform in terms of both controlling what goes in and what comes out from a face covering—reducing …
Is Tyvek grade D building paper?
Grade D paper By helping to seal the building envelope, Tyvek® StuccoWrap® helps protect buildings against bulk water intrusion and air-transported moisture, two factors that can lead to mold and wood damage if water accumulates in the wall cavity.