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Cavity Wall sizes

seclachi · 2010-01-18 16:13:05

Time for another house question folks. Whats deal with cavity sizes ? we were reccommended 150mm, but some have suggested increasing this and stuffing in more insulation to bring up the u value. Are there any maximum sizes for a cavity ? Are there any risks with increased cavity sizes ? Anything else to be aware of?

18-01-2010 5:13pm

#1

seclachi

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Posts: 468

Time for another house question folks. Whats deal with cavity sizes ? we were reccommended 150mm, but some have suggested increasing this and stuffing in more insulation to bring up the u value. Are there any maximum sizes for a cavity ? Are there any risks with increased cavity sizes ? Anything else to be aware of?

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Comments

#2 18-01-2010 6:36pm

mickdw

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150mm is max when dealing with typical 100mm bock walls. Any greater cavity will require an approved design by engineer.

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