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  2. List of commercially available roofing materials - Wikipedia

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

    This membrane is installed by two methods: 1.) Rolls of membrane are attached to the ridged insulation using a bonding adhesive; 2.) The edge of each roll is fastened through ridged insulation into structural deck, and the proceeding roll is lapped over the fasteners.

  3. List of insulation materials - Wikipedia

    en.wikipedia.org/wiki/List_of_insulation_materials

    This is a list of insulation materials used around the world. ... 1 5.28–8.8: 14–66 [1] 208–346 Silica aerogel: ... Polyurethane rigid panel (pentane-expanded ...

  4. Polyisocyanurate - Wikipedia

    en.wikipedia.org/wiki/Polyisocyanurate

    The generalised chemical structure of polyisocyanurate showing the isocyanurate group. The polyols are abbreviated as R-groups.. Polyisocyanurate (/ ËŒ p É’ l ɪ ËŒ aɪ s oÊŠ s aɪ ˈ æ nj ÊŠÉ™r eɪ t /), also referred to as PIR, polyol, or ISO, is a thermoset plastic [1] typically produced as a foam and used as rigid thermal insulation.

  5. Medium-density fibreboard - Wikipedia

    en.wikipedia.org/wiki/Medium-density_fibreboard

    Board for rigid underlays in roofs and walls Although similar manufacturing processes are used in making all types of fibreboard, MDF has a typical density of 600–800 kg/m 3 or 0.022–0.029 lb/in 3 , in contrast to particle board (500–800 kg/m 3 ) and to high-density fibreboard (600–1,450 kg/m 3 ).

  6. R-value (insulation) - Wikipedia

    en.wikipedia.org/wiki/R-value_(insulation)

    Installed faced fiberglass batt insulation with its R-value visible (R-21) [1]. The R-value (in K⋅m 2 /W) is a measure of how well a two-dimensional barrier, such as a layer of insulation, a window or a complete wall or ceiling, resists the conductive [2] flow of heat, in the context of construction. [3]

  7. US economy grows at 2.8% pace in third quarter on ... - AOL

    www.aol.com/us-economy-grows-2-8-133916189.html

    The American economy expanded at a healthy 2.8% annual pace from July through September on strong consumer spending and a surge in exports, the government said Wednesday, leaving unchanged its ...

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