Architectural and Engineering Glossary

W

Way

A street,alley,or other thoroughfare or easement permanently established for the passage of persons or vehicles.

WB

Abbr.for “welded base.”

WBT

Abbr.for wet bulb temperature.

WCV

Symbol for “butterfly (wafer) check valve.”

Wd

Abbr.for wood.

Wdr

In the lumber industry,abbr.for “wider.”

Weak Axis

The minor principal axis of a cross section.

Weakened-plane Joint

Same as groove joint. 

Wearing Surface, Wearing Course

1.The top layer of surfacing which carries vehicular traffic.2.Same as topping.
 

Weather Molding

A molding shaped and located to discharge rainwater;same as dripmold. 

Weather

That portion of a wood shingle that is exposed to the elements.

Weather Back

The application of weather proofing to the back (inner side) of a wall.

Weather Bar

See water bar.

Weather Barrier

On the outer surface of thermal insulation,any material which protects the insulation from weather damage,including solar radiation and atmospheric contamination.

Weather Check

Same as throat 2.

Weather Door

See storm door.

Weather Fillet

See cement fillet.

Weather Joint

See weather struck joint.

Weather Resistance

The ability of a material,paint film,or the like to withstand effects of wind,rain,sun,etc.,and retain its appearance and integrity.

Weather Shingling

Shingles that are hung vertically on the face of a wall,usually attached by nailing;provides protection against the penetration of moisture through the wall.

Weather Slating, Weather Tiling

Slate or tile shingles that are hung on the face of a wall to prevent the penetration of rainwater.

Weather Strip

A strip of wood,metal,neoprene,or other material applied to an exterior door or window so as to cover or seal the joint made by it with the sill, casings,or threshold,in order to exclude rain,snow,cold air,etc.

Weather Struck Joint,weathered Joint

A horizontal masonry joint in which the mortar is sloped outward from the upper edge of the lower brick, so as to shed water readily;formed by pressing the mortar inward at the upper edge of the joint.

Weather Tiling, Tile Hanging

Tile which is hung vertically on the face of a wall;usually attached by nailing; provides protection against moisture.

Weather Vane

A metal plate,often decorated,or in the shape of a figure or object,which rotates freely on a vertical spindle to indicate wind direction; usually located atop a spire or other elevated position on a building.

Weatherboard

One of a number of horizontal boards commonly used as an exterior covering on timber framed buildings to provide weather protection;for example,used as exterior sheathing to protect the infilling between the structural timbers.The upper edges of weatherboards are commonly tapered to a thinner edge than the lower edge so they can be overlapped by the weather boards directly above them,or they have a rabbeted upper edge that fits under the overlapping board above,to shed water.Also see clapboards,which served the same purpose but were usually not as thick as weatherboards;also see siding.

Weatherboarding

1.A type of wood siding commonly used in the early US as an exterior covering on a building of frame construction;consists of boards,each of which has parallel faces and a rabbeted upper edge which fits under an overlapping board above.2.Same as clap board or siding.

Weathercock

A weathervane in the shape of a rooster.

Weathered

1.Descriptive of a material or surface which has been exposed to the elements for a long period of time.2.Having an upper surface which is splayed so as to throw off water.

Weathered Joint

See weather struck joint.

Weathered Pointing

Same as weather struck joint.

Weathered Steel

A high strength steel whose own corrosion protects it from further corrosion. 

Weathered Stone

Stone that has been exposed to the elements over a long period of time,often resulting in changes in color or the development of a patina.
 

Weathering

1.Changes in color,texture, strength,chemical composition,or other properties of a natural or artificial material due to the action of the weather.2.See sill offset.3.The cover applied to a part of a structure to enable it to shed rainwater.

Weatherometer

A device in which specimen materials can be subjected to artificial and accelerated weathering tests, the effects of sun,rain,and temperature changes;the simulated conditions are usually obtained by the use of electric arcs,water spray,and heating elements.
 

Weatherproof

So constructed or protected that exposure to the weather will not interfere with successful operation or function.

Weatherseal Channel

Of a door,a top closing channel which is set in mastic with its flanges downward.

Weathertight

Sealed against the intrusion of rain,snow,cold air,etc.

Weave Bead

A weld bead which is made with oscillations along the bead which are transverse to the length of the bead.

Weaving

In shingled roofing,where two adjoining surfaces meet,the alternate lapping of shingles on opposite faces.

Weaving House

Same as spinning house.

Web

1.The portion of a truss or girder between the chords or flanges,whose principal function is to resist shear on the span.2.A core divider in a hollow masonry unit.

Web Bar

Steel reinforcement which is placed in a concrete member to resist shear and diagonal tension.

Web Clamp

A type of clamp used to hold carpentry work during gluing;consists of a tape of nylon,or the like,with a metal fastener that is tightened with a wrench or screwdriver.

Web Crippling

The local failure of a web plate,for example,as the result of a concentrated load.

Web Member

In a truss,any member which joins the top and bottom chords.

Web Plate

A steel plate which forms the web,1 of a beam,girder,or truss.
 

Web Reinforcement

1.Steel bars,rods,etc.,placed in a reinforced concrete member to resist shear and diagonal tension. 2.Additional metal plates connected to the web,1of a metal beam or girder to increase the strength of the web, 1.

Web Splice

A splice joining two web plates.

Web Stiffener

An angle iron which is connected to the web,1 of a beam to distribute a load or to prevent buckling.