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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. List of commercially available roofing materials - Wikipedia

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

    Tile roofing traditionally consists of locally available materials such as clay, granite, terracotta or slate, though many modern applications contain concrete. Imbrex and tegula, style dating back to ancient Greece and Rome. Monk and nun, a style similar to Imbrex and tegula, but basically using two Imbrex tiles. Dutch roof tiles, Netherlands

  4. Covering (construction) - Wikipedia

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

    The roof underlayment is used to prevent accidental penetration of rainwater or powdery snow, to prevent convective exchanges with thermal insulation, and to control the migration of water vapor. [1] It is an element of the building's thermal performance. [2] The roof underlayment is placed between the frame and the roof support.

  5. File:Life expectancy map of USA 2019 with names.png

    en.wikipedia.org/wiki/File:Life_expectancy_map...

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Donate

  6. File:Life expectancy map -North America -2019 -with names.png

    en.wikipedia.org/wiki/File:Life_expectancy_map...

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Donate

  7. Template : List of countries by life expectancy/United ...

    en.wikipedia.org/wiki/Template:List_of_countries...

    UN: Change of life expectancy from 2019 to 2023; Countries and territories 2023 Historical data Recovery from COVID-19: 2019→2023 All Male Female

  8. File:20200101 Life expectancy increases with age already ...

    en.wikipedia.org/wiki/File:20200101_Life...

    English: Chart of life expectancy as a function of current age (age achieved) showing how life expectancy increases with age already achieved Data source: Actuarial Life Table. U.S. Social Security Administration Office of Chief Actuary (2020). Archived from the original on July 8, 2023.

  9. 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 ...

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