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Problem with Internorm door HF310


Rob Johnson

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What were the outside and inside temps? 

Not sure that ~16°C in a corner is that bad, if it's close to freezing outside. What's under the door threshold? Is it block & beam on a strip foundation, similar, or an insulated raft?

 

A quick calc has the inside face of the door at 16.7°C with an outside temp of 0°C and inside temp of 21°C for a door frame with a 0.86 Uf value. With a little thermal bridging that could easily drop lower.

Edited by IanR
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