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  2. List of commercially available roofing materials - Wikipedia

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

    Roofing material is the outermost layer on the roof of a building, sometimes self-supporting, but generally supported by an underlying structure. A building's roofing material provides shelter from the natural elements. The outer layer of a roof shows great variation dependent upon availability of material, and the nature of the supporting ...

  3. Twinwall plastic - Wikipedia

    en.wikipedia.org/wiki/Twinwall_plastic

    Twinwall Polycarbonate sheeting is primarily installed with glazing bars, which secure the sheets down to the frame, whether timber, metal or other framing material. The type of glazing bar used it critical for the strength of the roof and depends on the thickness of polycarbonate and structure design.

  4. Polycarbonate - Wikipedia

    en.wikipedia.org/wiki/Polycarbonate

    Other applications, including polycarbonate sheets, may have the anti-UV layer added as a special coating or a coextrusion for enhanced weathering resistance. Polycarbonate is also used as a printing substrate for nameplate and other forms of industrial grade under printed products. The polycarbonate provides a barrier to wear, the elements ...

  5. Honeycomb structure - Wikipedia

    en.wikipedia.org/wiki/Honeycomb_structure

    Polycarbonate structures are a low-cost alternative. The honeycombed, screened center of this open-circuit air intake for Langley's first wind tunnel ensured a steady, non-turbulent flow of air. Two mechanics pose near the entrance end of the actual tunnel, where air was pulled into the test section through a honeycomb arrangement to smooth the ...

  6. Conservatory (greenhouse) - Wikipedia

    en.wikipedia.org/wiki/Conservatory_(greenhouse)

    In the UK, the legal definition of a conservatory is a building that has at least 50% of its side wall area glazed and at least 75% of its roof glazed with translucent materials, either polycarbonate sheeting or glass. Today, the terms sunroom, solarium and conservatory are used interchangeably by the public, but in general the term ...

  7. Poly(methyl methacrylate) - Wikipedia

    en.wikipedia.org/wiki/Poly(methyl_methacrylate)

    Sheets of PMMA are commonly used in the sign industry to make flat cut out letters in thicknesses typically varying from 3 to 25 millimeters (0.1 to 1.0 in). These letters may be used alone to represent a company's name and/or logo, or they may be a component of illuminated channel letters.

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