Yup, the widened section and sliproads of the M60 between junctions 6 and 8 is sitting on slabs of that - ISTR they did have a problem with someone setting fire to it overnight before it was covered.
My own conservatory has arouind 4" of screed sat on 4" Kingspan.
SteveW
Or a floating wooden floor.
SteveW
I have not bought any recently, but when I did my workshop a few years back I was paying about £14 sheet IIRC. I get mine from:
They will deliver within a reasonable area.
I wouldn't put timber on top of polystyrene, the fire risk and toxic gas would make it bad.
+1
Proper PIR foam is fire retardant[1], and insulates better anyway.
[1] as is jablite etc to be fair.
It flipping well aint.
On Sunday 10 November 2013 16:39 fred wrote in uk.d-i-y:
That has improved - once Wickes were charging nearly £40 for the same!
Its a building regs requirement the polystyrene is treated with flame retardants these days.
Jabalite and PIR foam burn and produce toxic gases if there is another fuel providing heat, as in a wooden floor.
sm_jamieson grunted in news: snipped-for-privacy@googlegroups.com:
+1
Why not? I've been very pleased with
or screed .... I have 65mm screed throughout with underfloor heating pipes in the screed.
Not read all the thread .. but did a complete SelfBuild and had all of my Celotex from 'Seconds & Co' saved a bundle on Bldrs Merchant price.
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