Sprayed foam insulation

Wouldn't you be better lining it all (Walls and roof) with Polyisocyanurate foam sheets (Kingspan/Celotex)?

The only workshop I've seen with a sprayed roof had wriggly asbestos cement sheet roofing panels and while the sprayed finish underneath worked as insulation after a year or so it was very dirty and impossible to clean because of its rough surface.

Here`s what the inside of a mate`s shed looks like.He had it done a few years ago,not pretty,but effective.

Mark.

Andrew

No experience of it as insulation of that kind, but I would want a pretty good vapour barrier between me and it - some of the chemicals in PU foam are distinctly noxious. It's also pretty awful stuff in a fire - produces vile black smoke with cyanides in it.

You can get fire retarded foamed polystyrene sheet in 8' x 4' sizes cut to pretty much any thickness you want - again needs a covering but it's quite cheap and a lot safer.

As an aside, I've had great success in making workshop floors by floating flooring grade chipboard on sheets of EPS foam.

All best

Norman

I've used this stuff quite successfully on the North-facing walls (9" solid) in our house, it or an equivalent ought to be OK on a ceiling, it doesn't use a lot of space:-

Tim

foam insulation

Friends have just had insulation added to their house and used a multilayer aluminium sheet and fibreglass tissue insulation with a plasticised aluminium outer layer. At about 20 mm thick its meant to be the equivalent of PU foam 9 inches thick.

The only trouble is the price, about £400 a roll !

I've seen adverts for similar systems. Quite frankly, I'd need to see independent test results before I believed a word of it.

Mark Rand RTFM

......and the fact it doesn't even work in the real world.

They go under a number of names but TRI ISO 9 and TRI ISO SUPER 10 are probably the most widely used.

Thin foil 'insulation' is among the biggest cons of the 21st century - the organisation that originally certified them for use in the UK didn't use standard methods and if they had then the results would have shown this type of insulation is completely useless unless you are in a vacuum. The approval was subsequently withdrawn after a complaint (to trading standards iirc)

It works good in vaccuum though ... used in lots of spacecraft ...

-- Peter Fairbrother

3 bed semi-detached spacecraft, particularly those in space and with an insulation problem are a little bit thin on the ground

I know it has solar panels but does the ISS have double glazing? :)

Yes, but only because of the noisy neighbours

:-)

Mark Rand RTFM