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Cement board is composed of aggregated Portland cement with a glass-fiber mesh on the surfaces. This 5 ⁄ 16 inch (7.9 mm) thick cement board is designed as an underlayment for tile floors. These are 3-by-5-foot (91 by 152 cm) sheets.
When used as siding boards, widths between 130mm and 300mm (5.25 inch to 12 inch) are available. [4] Fiber cement thicknesses vary between 4.5-18mm and also vary in density – the lower density resulting in a fibrous rough edge when cut and the higher density having a cleaner smoother edge when cut.
EPS is the most common of the foams used and has an R-value (thermal resistance) of about 4 °F·ft 2 ·h/Btu (equivalent to about 0.7 K·m 2 /W) per 25 mm thickness, which would give the 3.5 inches (89 mm) of foam in a 4.5-inch-thick (110 mm) panel an R value of 13.8 (caution: extrapolating R-values over thickness may be imprecise due to non ...
Plywood sheet siding is sometimes used on inexpensive buildings, sometimes with grooves to imitate vertical shiplap siding. One example of such grooved plywood siding is the type called Texture 1–11, T1-11, or T111 ("tee-one-eleven"). There is also a product known as reverse board-and-batten RBB that looks similar but has deeper grooves. Some ...
The density of hardboard is higher than 500 kg/m 3 (31 lb/cu ft), [4] usually about 800–1,040 kg/m 3 (50–65 lb/cu ft). [5] It differs from particle board and medium-density fiberboard in that the bonding of the wood fibers requires no additional adhesive, the original lignin in the wood fibers sufficing to bond the hardboard together, [ 6 ...
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). In addition, MDF typically has an MOR of 40 MPa and an MOE of 3 GPa.