enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Plywood - Wikipedia

   en.wikipedia.org/wiki/Plywood

   The sizes of the most commonly used plywood sheets are 4 by 8 feet (1,220 mm × 2,440 mm) [20] which was first used by the Portland Manufacturing Company, who developed modern veneer core plywood for the 1905 Portland World Fair. A common metric size for a sheet of plywood is 1200 × 2400 mm. 5 × 5 feet (1,500 × 1,500 mm) is also a common ...

3. Oriented strand board - Wikipedia

   en.wikipedia.org/wiki/Oriented_strand_board

   It is now more popular than plywood, commanding 66% of the North American structural panel market. [3] The most common uses are as sheathing in walls, flooring, and roof decking. For exterior wall applications, panels are available with a radiant-barrier layer laminated to one side; this eases installation and increases energy performance of ...

4. Engineered wood - Wikipedia

   en.wikipedia.org/wiki/Engineered_wood

   Plywood and OSB typically have a density of 560–640 kg/m 3 (35–40 lb/cu ft). For example, 9.5 mm (3 ⁄ 8 in) plywood sheathing or OSB sheathing typically has a surface density of 4.9–5.9 kg/m 2 (1–1.2 lb/sq ft). [51] Many other engineered woods have densities much higher than OSB.

5. Wood shingle - Wikipedia

   en.wikipedia.org/wiki/Wood_shingle

   In Scandinavia shakes, traditionally used only for roofing, are generally smaller than in North America, measuring 13–16 inches (330–410 mm) long, 4–6 inches (100–150 mm) wide and 1 ⁄ 8 inch (3.2 mm) thick, [6] while in Poland and Slovakia they are usually 36 inches (910 mm) long, 4–6 inches (100–150 mm) wide and 1–1.25 inches ...

6. Domestic roof construction - Wikipedia

   en.wikipedia.org/wiki/Domestic_roof_construction

   A warm roof is a roof that is not ventilated, [9] where the insulation is placed in line with the roof pitch. [10] A hot roof is a roof designed not to have any ventilation and has enough air-impermeable insulation in contact with the sheathing to prevent condensation [ 11 ] such as when spray foam insulation is applied directly to the under ...

7. Radiant barrier - Wikipedia

   en.wikipedia.org/wiki/Radiant_barrier

   When radiant solar energy strikes a roof, heating the roofing material (shingles, tiles or roofing sheets) and roof sheathing by conduction, it causes the underside of the roof surface and the roof framing to radiate heat downward through the roof space (attic / ceiling cavity) toward the attic floor / upper ceiling surface.

8. Metal roof - Wikipedia

   en.wikipedia.org/wiki/Metal_roof

   This finding is based on the use of a strapping system of 4 inches (100 mm) between the plywood and "cool-color" metal on top, [12] which provides an air gap between the plywood roof sheathing and the metal. Cool-color metals are light, reflective colors, like white.

9. List of commercially available roofing materials - Wikipedia

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

   Concrete roofing is composed of concrete reinforced with fibers of some sort. Structural concrete can also be used for flat roof constructions. There are three main categories, precast/prestressed, cast-in-place and shell. There are many types of precast/prestressed concrete roofing. The following are the most common types. [8]