Mondo Knows Facts

Cavity walls are pinned together with metal ties

Stainless steel ties stop the outer leaf leaning away from the inner one A cavity wall is two thin walls of brick or block with a gap between them, and the outer leaf carries only its own weight and the weather. Wall ties, usually stainless steel, bridge the gap at intervals so wind loads pass to the inner structure. The cavity keeps rain out and can be filled with insulation, though ties must stay clear of mortar droppings to avoid damp. It sits in Mondo's everyday life collection, one of 200 facts that each trace back to the reference below.

Cavity walls are pinned together with metal ties: Construction of a cavity wall in aerated concrete blocks to
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Where this comes from

British Standards Institution

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Tags: building, walls, insulation

Cavity walls are pinned together with metal ties: the short answers

Where does this come from, and can I check it?
Stainless steel ties stop the outer leaf leaning away from the inner one. The figure is taken from British Standards Institution, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
Is this really a everyday life fact?
Yes. It sits on the Everyday Life shelf, one of 2,600 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.
What else can I read about it?
The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.