Built -up roof - A roofing composed of three to five layers of asphalt felt laminated with coal tar, pitch, or asphalt. The top is finished with crushed slag or gravel. Generally used on flat or low -pitched roofs.
Collar beam - Nominal 1 - or 2 -inch -thick members connecting opposite roof rafters. They serve to stiffen the roof structure.
Delamination - Separation of the plies in a panel due to failure of the adhesive. Usually caused by excessive moisture.
Frieze - In house construction a horizontal member connecting the top of the siding with the soffit of the cornice.
R Value - A measure of insulation. A measure of a materials resistance to the passage of heat. The higher the R value, the more insulating "power" it has. For example, typical new home's walls are usually insulated with 4" of batt insulation with an R value of R -13, and a ceiling insulation of R -30.
Ridge - The horizontal line at the junction of the top edges of two sloping roof surfaces.
Wall out - When a painter pray paints the interior of a home.
Yoke - The location where a home's water meter is sometimes installed between two copper pipes, and located in the water meter pit in the yard.
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#35 Cobalt Jobber Length Drill Bit
Feature: ... Size: 35; Decimal Equivalent (inches): 0.11; Overall Length: 2 5/8 ...more
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