wrote:

What can I do to eliminate/attenuate such cold bridges?

I think you are worrying about a non problem. The joists are already on
the internal leaf of the cavity wall. Ultimately they will be under
flooring, carpet etc and will not represent any more of a heat loss path
than any other joist in your house.

Any suggestion appreciated.

Don't worry so much ;-)


--
Cheers,

John.

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