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  2. Bituminous waterproofing - Wikipedia

    en.wikipedia.org/wiki/Bituminous_waterproofing

    Over time the felt's natural mesh used as a substrate for asphalt impregnation (derived from fabrics like cotton or burlap) has evolved into synthetic products performing the same function with improved durability. Other changes with time have enhanced performance, with roofing felt remaining a heavier and more durable product than tar paper.

  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. 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 ...

  5. Tar - Wikipedia

    en.wikipedia.org/wiki/Tar

    Birch tar. Tar was used as seal for roofing shingles and tar paper and to seal the hulls of ships and boats. For millennia, wood tar was used to waterproof sails and boats, but today, sails made from inherently waterproof synthetic substances have reduced the demand for tar. Wood tar is still used to seal traditional wooden boats and the roofs ...

  6. Underlayment - Wikipedia

    en.wikipedia.org/wiki/Underlayment

    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; SDM strength film, a kind of High Density Polyethylene (HDPE) Cross Laminated Strength Film; Tar paper, a heavy-duty paper used in ...

  7. A Cheaper Alternative to Tissues -- Savings Experiment - AOL

    www.aol.com/news/2012-02-03-savings-experiment...

    First, take a roll of toilet paper and cut down the length of the cardboard center with your scissors. Remove the tube. Take an empty square tissue box and cut three sides along the bottom.