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2. Bituminous waterproofing - Wikipedia

   en.wikipedia.org/wiki/Bituminous_waterproofing

   Bituminous waterproofing. 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] Systems incorporating bituminous-based substrates are sometimes used to construct roofs, in the ...

3. Flashing (weatherproofing) - Wikipedia

   en.wikipedia.org/wiki/Flashing_(weatherproofing)

   Roof penetration flashing Used to waterproof pipes, supports, cables, and all roof protrusions. Stainless steel penetration flashings have proven to be the longest lasting and most reliable roof flashing type. Channel flashing Shaped like a “U” or channel to catch water (e.g., where the edge of a tile roof meets a wall). Through wall flashing

4. Waterproofing - Wikipedia

   en.wikipedia.org/wiki/Waterproofing

   Waterproofing is the process of making an object, person or structure waterproof or water-resistant so that it remains relatively unaffected by water or resisting the ingress of water under specified conditions. Such items may be used in wet environments or underwater to specified depths. Water-resistant and waterproof often refer to resistance ...

5. Flat roof - Wikipedia

   en.wikipedia.org/wiki/Flat_roof

   Flat roof in Los Angeles. Flat roof in Warszawa Centralna railway station in Poland (1975) A flat roof is a roof which is almost level in contrast to the many types of sloped roofs. The slope of a roof is properly known as its pitch and flat roofs have up to approximately 10°. [1] Flat roofs are an ancient form mostly used in arid climates and ...

6. AOL Mail

   mail.aol.com

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

7. Asphalt shingle - Wikipedia

   en.wikipedia.org/wiki/Asphalt_shingle

   Asphalt shingles are an American invention by Henry Reynolds of Grand Rapids, Michigan. [2] They were first used in 1903, in general use in parts of the United States by 1911 and by 1939 11 million squares (100 million square meters) of shingles were being produced. [3] A U.S. National Board of Fire Underwriters campaign to eliminate the use of ...