Uplift
Wind load on a steel building, which causes a load in the upward direction.
Valley Gutter
A heavy gauge gutter used for multi-gabled steel buildings or between buildings.
Vapor Barrier
Material used to retard the flow of vapor or moisture to prevent condensation from forming on a surface.
ntilator
An accessory mounted on the roof which allows the air to pass through.
Wainscot
Wall material, used in the lower portion of a wall, that is different from the material in the rest of the wall.
Walk Door
Doors used by personnel for access and exit from a building.
Wall Covering
The steel building’s exterior wall surface consisting of panels.
Web
That portion of a structural member between the flanges.
Width
The dimension of the steel building system measured parallel to the main framing from outside to outside of sidewall girts.
Wind Column
A vertical member designed to withstand horizontal wind loads, usually in the endwall.
Wind Load
The load caused by the wind blowing from any horizontal direction.
“Z” Section
A steel building system member cold formed from steel sheet in the approximate shape of a “Z”.
Zinc-Aluminum Coated Steel
Steel coated with an alloy of zinc and aluminum to prevent corrosion.



















