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.
End "1 4 double end drill" research and recommendations
KnKut (KNKKK214) KnKut Double End Drill Bit - 1/4"
Editorial Reviews — ... Product Description | Features and Benefits: Will not walk 135 degree split point High speed steel Less breakage Gold surface treated KnKut Double End Sheeter Drill Bits are excellent for thin gauge metals such as sheet metal. Made of hi-molybdenum tool steel and surface treated for maximum lubricity, our sheeter drills feature a 135-degree split point that will not walk. Rugged un-cleared construction gives superior performance and less breakage. ...more
Number 2 Phillips x 1/4 Double End Bit, 2 Inch - 2 Piece
Feature: ... Double end bits with optimal quality and value; Fit all power drills, screw guns, cordless and magnetic screwdrivers; Precision milled tips; Constructed chrome vanadium steel; Hardened and tempered for durability ...more
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1 3/4" Phillips Double End Insert Bit
Feature: ... Vermont American #16270 #2 Phil DE Screwdriver; VERMONT AMERICAN ...more
Editorial Reviews — ... Product Description | Quick-change, reversible bits. Performs double duty for contractors, mechanics and DIYers. Ideal for cordless screwdrivers and drills, variable speed drills and screwguns....more
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