Valley Gutter: A channel used to carry off water, normally from roofs of multi-gabled buildings
Vapor Barrier: Material used to retard the flow of vapor or moisture into walls and roofs and thus prevent condensation within them
Ventilation: The process of changing the air within a building
Web: That portion of a structural member between the flanges
Width: The dimension of the building measured parallel to the main framing from sidewall to sidewall.
Wind Column: A vertical member supporting a wall system designed to withstand horizontal wind loads usually at endwalls
Wind Load: A loading representing the pressure exerted on a structure by a given wind velocity. A load caused by the wind blowing from any horizontal direction.