Cold loft conversion (Ed.)

[JohnD]

You might be able to use a thermal imaging camera to identify cold patches. I believe you can hire them but not done it myself. Best done on a cold frosty night I think when the heating is on.

Follow up by filming the roof on the same cold night to look for warm patches (they will also show up by frost meling which you can see by eye)

 

[^woody^]

The loft warms up but loses heat very quickly. 4-5c in 6 hours or so.

The loft is not vacuum sealed. That heat loss seems normal.

 

[Harry Bloomfield]

You might be able to use a thermal imaging camera to identify cold patches. I believe you can hire them but not done it myself. Best done on a cold frosty night I think when the heating is on.

Certain energy companies, loan them out to their customers - worth asking.