|
Posted to uk.d-i-y
|
|
|
ventilating cavity walls
wrote:
What other provision for venting the underfloor void is there?
Usually they're designed with cross ventilation to ensure rot doesn't
occur in the floor joists.
I would be cautious about closing off existing ventilation of any
sort, unless I could see why it had originally been installed, and why
it was now redundant.
He's not closing ventilation off to the floor, he wants to close of the
ventilation into the cavity, IE sleeve the vent, like the others are
sleeved.
To the OP, the others are probably sleeved, usually with slate, but also
with bitumen DPC depending when it was built, this one has probably been
forgotten about by a clumsy bricky.
Block it off with foam or fibreglass, taking care not to allow foam to
extrude through the vent to outside as it looks hideous, and not to block
the underfloor ventilation.
HTH
--
Phil L
RSRL Tipster Of The Year 2008
|