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2. How Much Does a Roof Replacement Cost? 6 Ways To Make It ...

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3. Purlin - Wikipedia

   en.wikipedia.org/wiki/Purlin

   The purlins are the large beams perpendicular to the rafters; from this shot, it appears that there are three purlins on either side of the roof. The sheathing boards are sometimes called the roof deck and are painted white. A purlin (or historically purline, purloyne, purling, perling) is a longitudinal, horizontal, structural member in a roof.

4. Roof insurance: ACV vs. replacement cost - AOL

   www.aol.com/finance/roof-insurance-acv-vs...

   For example, if the replacement cost — not the amount that you paid for it originally, but the amount it would cost to replace it today — for your roof is $20,000, but the roof loses 5 percent ...

5. Domestic roof construction - Wikipedia

   en.wikipedia.org/wiki/Domestic_roof_construction

   A more recent design is the installation of a roof deck with foil-backed foam along with a second deck that is air-gapped away from the foil-backed foam to allow air to flow vertically to a ventilation outlet at the peak of the roof—it is a double-deck design with an air gap. This design improves efficiency. [13]

6. Roofer - Wikipedia

   en.wikipedia.org/wiki/Roofer

   A roofer, roof mechanic, or roofing contractor is a tradesman who specializes in roof construction. Roofers replace, repair, and install the roofs of buildings, using a variety of materials, including shingles, single-ply, bitumen, and metal. Roofing work includes the hoisting, storage, application, and removal of roofing materials and ...

7. Composite material - Wikipedia

   en.wikipedia.org/wiki/Composite_material

   Comparison of Cost, Specific Strength, and Specific Stiffness [97] Carbon Fiber Composite (aerospace grade) Carbon Fiber Composite (commercial grade) Fiberglass Composite: Aluminum 6061 T-6: Steel, Mild. Cost $/LB: $20 – $250+ $5 – $20 $1.50 – $3.00 $3 $0.30 Strength (psi) 90,000 – 200,000 50,000 – 90,000 20,000 – 35,000 35,000 ...