I have two guys happily pumping expanding foam into our cavity walls today, they spent all yesterday drilling holes and cutting out air bricks. No noticeable smell as yet!
Mike
- posted
10 years ago
None DIY day
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10 years ago
Watch out for free insulation of the space underneath your bath. ;-)
Chris
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10 years ago
Muddymike scribbled...
Foam ! Why not poly balls ?
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10 years ago
I have poly balls in the loft (!"$%^& things) which (from here) leaches out the plasticiser in cable making it brittle.
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10 years ago
In message , Muddymike writes
Wait a while until they work up a sweat.
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10 years ago
Muddymike scribbled...
They would have been a lot cheaper as would blown fibre but sadly the outer stone skin makes for a very uneven cavity so only foam will work properly. Apparently the 2 x 40 gallon drums of chemical they have with them won't be enough and they are hoping another two will arrive today direct from the manufacturer.
Mike
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- posted
10 years ago
They should never have been used in a loft for that reason - is it a very old installation of polyballs?
The cavity wall guys should check there are no cables in the cavities for the same reason...
This should be: dash-dash-space
VV
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- posted
10 years ago
Blimey what have you got, a fort?
Brian
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10 years ago
Blimey what have you got, a fort?
Sadly the extra chemical didn't arrive so work stopped about 3:30 yesterday. The main house is done and we already notice the difference Traffic noise is much less noticeable and we didn't hear the town hall alarm going off at
10:30 last night.They have emptied this and the other it mixes with.
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This is how they stop it running out.
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Mike
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10 years ago
If they're still there could you ask them how to get foam out of carpet?
I was filling holes in the bedroom and the foam squirted through to the lounge.
Owain
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10 years ago
They used a chemical to clean up, sorry I don't know what it was and they have gone now.
Mike
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10 years ago
Never saw owain's post for some reason?!
Have you tried
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Jim K
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10 years ago
CWI in uneven stone cavities has resulted in damp problems at times.
completely illogical. I'd go for poly bead as if there is any damp problem resulting, the beads are easily removed. No other insulation is - and foam especially not. If foam goes wrong in a lumpy cavity you're looking at rebuilding the walls.
NT
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10 years ago
Good job I have an installers warranty then.
Your logic is not shared by the home insulation grant people. Poly beads or blown fibre, not recommended and no grant available. This system £4200 grant towards it!
Mike
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10 years ago
fwiw
Foam fill gives higher insulation than bead, as it doesnt leave lots of gap s
NT
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10 years ago
What was the actual cost of it?
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10 years ago
£5,400 plus 5% VAT I paid £1260 which was what remained after the grant plus 5%.
Mike
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10 years ago
Someone's getting rich
NT
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10 years ago
Which grant is that, please? Can't seem to see much beyond the Green Deal . . .
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10 years ago
googlegroups?
Now all I have to hope is that the carpet isn't the same polywatsit as the foam.
Owain