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The pitch of a roof is its vertical 'rise' over its horizontal 'run’ (i.e. its span), also known as its 'slope'. In the imperial measurement systems, "pitch" is usually expressed with the rise first and run second (in the US, run is held to number 12; [1] e.g., 3:12, 4:12, 5:12). In metric systems either the angle in degrees or rise per unit ...
The system most commonly used to fully document and describe scaling was devised by Johann Gottlob Töpfer. [4] Since varying the diameter of a pipe in direct proportion to its length (which means it varies by a factor of 1:2 per octave) caused the pipes to narrow too rapidly, and keeping the diameter constant (a factor of 1:1 per octave) was ...
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Replacing the roofing felt on a Scout hall in Wales. Bituminous waterproofing systems are designed to protect residential and commercial buildings.Bitumen (asphalt or coal-tar pitch) is a material made up of organic liquids that are highly sticky, viscous, and waterproof. [1]
Budget carrier Spirit Airlines filed for bankruptcy this week, stoking concern about how the financial peril of a low-fare option could impact prices across the industry. The Florida-based company ...
Shed roof attached to a barn. A shed roof, also known variously as a pent roof, lean-to roof, outshot, catslide, skillion roof (in Australia and New Zealand), and, rarely, a mono-pitched roof, [1] is a single-pitched roof surface. This is in contrast to a dual- or multiple-pitched roof.
Philip Cho recently proposed to girlfriend Heather Nguyen under the 74-foot-tall Rockefeller Center Christmas tree in New York City