a wall formed of two thicknesses of masonry with a space between them
A double wall of masonry connected by an air space.
Cavity walls consist of two 'skins' separated by a hollow space. The skins are commonly masonry such as brick or concrete block. Masonry is an absorbent material, and therefore will slowly draw rainwater or even humidity into the wall. The cavity serves as a way to drain this water back out through weep holes at the base of the wall system or above windows. A cavity wall with masonry as both inner and outer skins is more commonly referred to as a double wythe masonry wall.
The numerical value of cavity wall in Chaldean Numerology is: 2
The numerical value of cavity wall in Pythagorean Numerology is: 2
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