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  2. Bituminous waterproofing - Wikipedia

    en.wikipedia.org/wiki/Bituminous_waterproofing

    Heavier material is typically used for underlayment of longer-lived roof materials in order to match their longer life span, and on less sloped roofs, which are more susceptible to leaking. For example, two layers of No. 30 felt might be used under a slate or tile roof, whereas a single layer of No. 15 might be adequate for a steeply raked roof ...

  3. Covering (construction) - Wikipedia

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

    DTU 40.22 Canal Clay Tile Roofing; DTU 40.23 Flat Clay Tile Roofs; DTU 40.24 Concrete Tile Roofing with Sliding and Longitudinal Interlocking; DTU 40.241 Concrete Flat Tile Roofing with Sliding and Longitudinal Interlocking; DTU 40.25 Concrete Flat Tile Roofing; DTU 40.35 Ribbed Sheet Roofing from Coated Steel Sheets; DTU 40.36 Pre-painted or ...

  4. List of commercially available roofing materials - Wikipedia

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

    Installation is very streamlined and a rapid process. Depending on the size of the roof and the experience of the crew, it is possible to remove old shingles and apply new ones on 2-3 houses in one day. Life span varies. Use only on slanted roofs. [4] Rubber shingle, an alternative to asphalt shingle, slate, shake or tile.

  5. 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 ...

  6. Roof tiles - Wikipedia

    en.wikipedia.org/wiki/Roof_tiles

    As a result of this, high-quality clay and slate tiles have a proven lifespan of over 100 years, whereas synthetic and concrete tiles usually have a practical lifespan of 30–50 years. [ 67 ] [ 68 ] [ 69 ] In the case of synthetic plastic tiles, this is purely an estimation since the oldest products on the market date to around 2000. [ 60 ]

  7. 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 ...

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