Shingles Underlayment 15# Asphalt Saturated Roofing Felt For Sloped Wooden Roof

Roofing Underlayment For Asphalt Shingles Asphalt Roofing Felt

What is Roofing Underlayment:

Asphalt Saturated Organic Roofing Felt has been a trusted roofing underlayment for over 100 years. This product is applied directly to the roof deck on sloped roofs, and used under asphalt shingles, wood shakes and tiles. This product acts as a secondary layer of protection from wind driven rain, ice damming and normal weather patterns. The reason for the success is due to the products ability to shed water off roofs, and protect the underlying building from water damage. The product also has the unique ability to “breathe” and let interior moisture escape the building.

Roofing underlayment functions:

1.It repels water. Roof underlayment helps to ensure that water drains off the roof.

2.It provides backup protection in the event of ice or water damage. Roof underlayment can seal around fastener shanks for a leak-resistant fit.

3.It provides extra weather protection. Some roof materials are more susceptible to wind uplift damage. In these incidences, the roof underlayment becomes a backup layer of weather protection to guard against rain until the roof can be repaired or replaced.

4.It protects your roof deck while you work on it. Roof underlayment prevents the roof deck from being exposed to the elements, before, or while, the roofing material is being installed. Ideally, the roof-covering material would be installed as soon as possible, but in reality, the roof may be protected by only the underlayment for days, weeks, or sometimes months. It also needs to resist the wear and tear that occurs when the roof-covering material is being installed.

Asphalt roofing felt as underlayment benefits and types:

This is our better-quality asphalt roofing felt. Our reinforced mat is saturated with premium grade asphalt to provide a quality roofing underlayment. The rolls are manufactured with a better-quality reinforcing mat, and high content of asphalt. ASTM D4869 is most often specified product to insure weatherproofing protection on roofs.

Popular types are four types:

1.ASTM D4869 #15, 0.914mx44m (36in*144ft)

2.ASTM D4869 #30, 0.914mx22m (36in*72ft)

3.ASTM D226 #15, 0.914mx44m  (36in*144ft)

4.ASTM D226 #30, 0.914mx22m  (36in*72ft)

Asphalt roofing felt data form: