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Fascia (/ ˈ f eɪ ʃ ə /) is an architectural term for a vertical frieze or band under a roof edge, or which forms the outer surface of a cornice, visible to an observer. [ 1 ] Typically consisting of a wooden board, unplasticized PVC (uPVC), or non-corrosive sheet metal, many of the non-domestic fascias made of stone form an ornately carved ...
A cement board is a combination of cement and reinforcing fibers formed into sheets, of varying thickness that are typically used as a tile backing board. [1] Cement board can be nailed or screwed to wood or steel studs to create a substrate for vertical tile and attached horizontally to plywood for tile floors, kitchen counters and backsplashes.
The general form of the polymer is a backbone with functional "pendant groups" that hang off of it. When these functional groups become ionized in certain pH levels, they acquire a charge (+/-). Repulsions between like charges cause the polymers to change shape. [1] [2] A summary of how polyacids and polybases behavior under different pH ...
Eaves of a house in Northern Australia.The white underside would be referred to as a soffit. In this example the soffit is fixed to the slope of the rafters.The dark grey fascia boards form the outer edge and have a groove to receive the soffit lining sheets which cover the rafter tails.
Bargeboard, 1908 illustration. A bargeboard or rake fascia is a board fastened to each projecting gable of a roof to give it strength and protection, and to conceal the otherwise exposed end grain of the horizontal timbers or purlins of the roof.
The pH range is commonly given as zero to 14, but a pH value can be less than 0 for very concentrated strong acids or greater than 14 for very concentrated strong bases. [2] The pH scale is traceable to a set of standard solutions whose pH is established by international agreement. [3]
Shiplap is either rough-sawn 25 mm (1 in) or milled 19 mm (3 ⁄ 4 in) pine or similarly inexpensive wood between 76 and 254 mm (3 and 10 in) wide with a 9.5–12.7 mm (3 ⁄ 8 – 1 ⁄ 2 in) rabbet on opposite sides of each edge. [1]
Many circuit board assembly firms apply a layer of transparent conformal coating to assemblies as an alternative to potting. Conformal coatings are used to protect electronic components from possible environmental exposure; they allow moisture to escape but protect against contamination.