Glossary T - Z
T
Tongue Tear: This is a property of fabrics where a machine will tear a strip of fabric across the warp and filling. The resulting effort to this is measured in pounds.
Top Coating: The coating intended for the front, side or top of a fabric or membrane.
U
Ultimate Strength: The maximum strength under which an awning material is capable of sustaining a gradual and uniformly applied load.
UV Resistance: Ability to withstand decay due to the damaging effect of the ultraviolet rays of the sun.
W
Warp: Threads that run through the length of a roll of fabric.
Water Repellent Finish: A finish either durable, applied to cloth which makes it relatively impervious to the effects of water repellent finishes does not close the pores of a cloth.
Waterproof: The use of the term in relation to treated cotton ducks is prohibited by the "Fair Trade Practices Act" unless :the product shall be impervious to the passage of any water so long as the fabric may endure". "Water Resistant" is the proper designation for cloths treated to resist water penetration and leakage.
Weave: The configuration of threads running perpendicular to one another. A plain weave places weft thread over the warp thread in sequence, then reverses for the next row of threads.
Webbing: A sturdy fabric woven in narrow widths for use where strength is required, such as seat belts or head bands.
Weft-Fill: Threads that run in the crosswise direction of woven fabric. Weft also is referred to as "fill".
Weld: The process that connects pieces of material by heating until molten and fused together.
Welt: A strip of material seamed to a pocket opening as a finishing and a fabric strengthening device.
Welt Cord: A tape or covered cord sewn into a seam as a reinforcement or trimming.
Wickability: The property of a fiber that allows moisture to move rapidly along the fiber surface and pass quickly through the faric.
Wood Lag Screws: Screws which are tapered to a point and do not utilize nuts. Their strength is proportional to the hardness of the wood in which they are embedded. In many awning applications that require fastening to wood framing wood lag screws may be the best available option.
Working Load: Also known as "Working Strength," this is the weight in pounds that is recommended for safe working conditions. It is applied to new rope in good condition with approprite splices and only under normal servic econditions. Where dynmic loading may occur, the recommended working load should be adjusted accordingly.
Woven Fabric: Fabric composed of at least two sets of yarns -- one warp (longitudinal) and one filling (crosswise) -- laced at right angles to each other.