When.com Web Search

Search results

1. Results From The WOW.Com Content Network

2. Bituminous waterproofing - Wikipedia

   en.wikipedia.org/wiki/Bituminous_waterproofing

   Replacing the roofing felt on a Scout hall in Wales. Bituminous waterproofing systems are designed to protect residential and commercial buildings.Bitumen (asphalt or coal-tar pitch) is a material made up of organic liquids that are highly sticky, viscous, and waterproof. [1]

3. Tar paper - Wikipedia

   en.wikipedia.org/wiki/Tar_paper

   Tar paper is used as a roofing underlayment with asphalt, wood, shake, and other roof shingles as a form of intermediate bituminous waterproofing.It is sold in rolls of various widths, lengths, and thicknesses – 3-foot-wide (0.91 m) rolls, 50 or 100 feet (15 or 30 m) long and "15 lb" (7 kg) and "30 lb" (14 kg) weights are common in the U.S. – often marked with chalk lines at certain ...

4. Covering (construction) - Wikipedia

   en.wikipedia.org/wiki/Covering_(construction)

   A roof covering is composed of various elements including: Roof support (beams, boards, rafters, battens, etc.) Roof underlayment (waterproof membrane, thermal insulation, etc.) Ventilation elements for the underlayment (moisture and vapor evacuation) Roof covering, visible exterior coating (tiles, slates, shingles, etc.)

5. List of commercially available roofing materials - Wikipedia

   en.wikipedia.org/wiki/List_of_commercially...

   Those types of roofing material which are commercially available range from natural products such as thatch and slate to commercially produced products such as tiles and polycarbonate sheeting. Roofing materials may be placed on top of a secondary water-resistant material called underlayment.

6. Underlayment - Wikipedia

   en.wikipedia.org/wiki/Underlayment

   Underlayment may refer to: Underlay, a material placed underneath floor carpet, other flooring materials, or mattress bedding; Underlayment, a water-resistant or waterproof layer used beneath many types of commercially available roofing material. Bituminous waterproofing, systems designed to protect residential and commercial buildings

7. Underlay - Wikipedia

   en.wikipedia.org/wiki/Underlay

   Underlay is also the term for the material under roofing tiles; [1] this roofing membrane is often made of rubber and is used to seal the roof and prevent leakage. Underlayment used with roofing shingles provides a second layer of water proofing to prevent leaks and is called tar paper, roofing felt, or since the 1990s synthetic underlayment ...