Loft insulation

We need to increase the insulation in the loft as there's only 100mm of glass fibre in there at the moment.

I can put another 170mm across the joists quite easily but Management would prefer to keep a storage area down the middle. A quick look around the web has produced Space Board -

formatting link
- which would seem to do the job.

Anyone used it? Any good? Or is there a better/cheaper alternative?

TIA

Reply to
F
Loading thread data ...

Look at the performance. Celotex, Kingspan, etc do similar products. Check them all out.

Reply to
Doctor Drivel

On Thu, 06 Mar 2008 14:03:29 +0000, a particular chimpanzee, F randomly hit the keyboard and produced:

Its conductivity is 0.029W/mK, so is about 25-30% better than mineral wool (which is usually between 0.037-0.04). You would need two layers to give the same U-value as 170mm Rockwool. The 'better' in terms of insulation value material is PIR (Celotex, Kingspan, Xtratherm, et al), which has a k-value of 0.023W/mK, but is more expensive.

OTOH, anything is better than nothing, and if the choice is no extra insulation over the middle or this, I'd go with this.

Reply to
Hugo Nebula

Thanks.

I had a look at the Celotex and Kingspan sites yesterday and they seem to be designed to hide any information useful that might be useful to me. I emailed them both and Kingspan got back within 30 minutes; I'm still waiting for Celotex.

Thermafloor TF73 is the nearest I've seen to what might seem to be suitable but it's got 18mm of chipboard attached.

Kooltherm K7 would seem to be a possibility but I can't see anything in the literature to say that its mechanical strength would be adequate for loft storage.

In effect, I don't seem to be able to find the sheets of polystyrene which would be equivalent to Space Board (nor any Kingspan or Celotex prices).

Reply to
F

On Sat, 08 Mar 2008 14:35:35 +0000, a particular chimpanzee, F randomly hit the keyboard and produced:

I don't think you need to worry on that score; they're all designed to go under concrete slabs and roof decks, and they all get walked over on site extensively before that. You may need to lay it on boards to prevent the ceiling joists digging in, and board over to distribute the loads.

Reply to
Hugo Nebula

Try Ebay, or email .

Reply to
<me9

HomeOwnersHub website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.