Cavity wall

(redirected from cavity walls)
Also found in: Dictionary, Thesaurus, Medical.

cavity wall

[′kav·əd·ē ‚wȯl]
(building construction)
A wall constructed in two separate thicknesses with an air space between; provides thermal insulation. Also known as hollow wall.

Cavity wall

1. A wall assembly constructed of two wythes of masonry bonded with wall ties and separated by an air cavity, which is sometimes filled with insulation.
2. An exterior wall, usually of masonry, consisting of an outer course and an inner course separated by a continuous air space connected by metal ties.
See also: Wall

cavity wall, hollow masonry wall, hollow wall

cavity wall
An exterior wall, usually of masonry, consisting of an outer and inner withe separated by a continuous air space, but connected together by wire or sheet-metal ties. The dead air space provides improved thermal insulation.
References in periodicals archive ?
With cavity wall construction, we did not see them until after the 1960s.
It''s so simple to take advantage of this great offer, which could save you up to pounds 175 on your energy bills with loft insulation, and up to pounds 135 a year on your energy bills with cavity wall insulation1.
Homes less than 10 years old should already have cavity wall insulation, but if you''re not sure about yours, you can ask your local council''s building control department if they have a record of the walls being filled.
The thickness of the cavity walls was standardized with an orthometer gauge (Korkhaus Orthometer Kit, 75228 Ispringen, Dentaurm, Germany).
The cavity wall was first used in coastal locations to keep rain out but soon spread to drier locations, as it was identified that the cavity also provided a degree of thermal retention.
As a result, the workforce includes Green Deal advisers, domestic energy assessors, hard-to-treat cavity wall installers, loft installers, electricians, gas safety fitters, joiners and plasterers.
LICHFIELD District Council is urging householders to take up a limited free loft and cavity wall insulation offer.
You reported that half of the engineers surveyed had replaced their loft or cavity wall insulation in the past five years, and more in the past 10 years (Survey, PE November).
Insulation: On Betterplan you get pounds 250 off lofts and pounds 400 off cavity walls plus cash credits.