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Vacuum breaker
See Back-flow
preventer.
Valley flashing
Metal or roll roofing flashing laid in a
valley to protect the junction from
water penetration.
Valley
The trough formed by the junction of two
sloping sides of the roof.
Vapor barrier
A type of waterproof sheeting used to prevent the
passage of moisture
through a surface.
Vault
An elevated indoor water reservoir, often
located in the attic, from which water flows
by gravity.
VBS
An abbreviation for acrylonitrile
butadiene styrene, a black plastic piping used in DWV
piping. Uses mechanical no-hub joints.
V-crack
A crack that increases in width along its
path.
Vehicle
The film-forming compound in paint.
Veneer
See Brick
veneer.
Vent pipes
Pipes that carry gases and pressure that
builds up in the DWV system.
Vent stack
Main vertical vent pipe fed by all other
vent pipes that exhausts through the
roof.
Vent system
All vent pipes in the home, exhausting
above the roof.
Vermiculite
An insulating material made from heating and expanded
mica, used as loose
fill.
Vertical crack
A vertical foundation crack often caused
by settlement of the structure.
Vinyl siding
Horizontal polyvinyl chloride planks,
used as a wall cladding.
Voltage rating
In home inspection, the size of volt
service supplied to the home. For
example, a 120-volt or 240-volt service.
Voltage
See
Electromotive force.
Volts
The unit of measure for electromotive
force. |