Have a joist inserted into cavity wall with a very large gap in the brickwork. It is around a chimney in the attic. Should this be sealed. The joist seems to be going into the hole the depth of the brick. Concerned as about to have my loft insulated with another 200mm of insulation that will cover this. Do not know if this is an building fault or area of concern. All the attic joists are running horizontal to this picture so this must be used as load bearing for the couple of joists on this side of the chimney. Please see picture.
Cavity wall missing bricks and joist inserted
- Thread starter SpyDiy
- Start date
Do cavity walls not have to be sealed?
Thanks. In the cavity wall above that hole there seems to be a white plasticky material running across the cavity (not foam). Does not completely seal the cavity, maybe inch gap. Not sure what it is. This is above a built in garage where the oil boiler is. Concered about condensation coming from the hole into the new fibre wool insulation.
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