Celotex

[Petemate]

Panels arriving tomorrow from Wickes, going to use it for fitting a ceiling in our workshop. Not going to put plasterboard over it, just fit the panels to battens between the trusses. (workshop is a Parklines with pitched roof) Any ideas on what paint will stick to the foil surface? Also, both sides are foil, one side has the Celotex Logos the other just plain foil - wondered of both foil surfaces are identical in make-up. I will be mounting the panels on battens fixed to the trusses. Just want to paint them white to ensure a nice spread of light from the lights. If there is absolutely no paint capable of sticking to the foil, then I'll accept this and leave it as is. Assistants at Wickes hadn't any ideas!! (my question "What paint can I use on it?" Answer "Dunno....")

Edited by Petemate on Thursday 25th November 15:18

[motco]

I have used this to insulate a flat on the top floor of a 1930s flat roofed block in London. The ceilings are 300-400mm thick reinforced concrete and are like a massive heatsink. Fixing these sheets to the ceiling with 'No More Nails' and a central batten screwed through into the concrete adds a lot of insulation. As long as the edges and seams are taped up with aluminium tape to complete the vapour barrier I cannot see why this shouldn't be a permanent solution. Then I used a Swiss suspended ceiling system called 'Clipso' to add a perfect finish. Not a lot of help to you but interesting I hope. You can email the makers to ask them, of course.

[Mr GrimNasty]

If you must - any primer/undercoat/paint suitable for aluminium I guess. If you bought the insulation for half the price anywhere else(!), you could have got some plasterboard as well.

[GreenDog]

There's a paint that'll cover lead on dormers etc call white lead, I think you can then paint over that. Might work on aluminium too.
Failing that could you cover it with lining paper then paint it ?

[mrmaggit]

Both films are the same.

No idea what you'd paint it with, mostly it's over-boarded and then that is painted.

[garycat]

You realise that the foam compresses quite easily, so anything that touches your celotex wall will leave a dent.

[TooLateForAName]

mrmaggit said:

Both films are the same.

No idea what you'd paint it with, mostly it's over-boarded and then that is painted.

That's what I would have thought, however

Celotex said:

• For optimum thermal performance, the unprinted foil surface should face the batten cavity.

This from their guide to internal insulation, and the layering is masonry wall/celotex/batten&air.service gap/plasterboard, so unprinted side to the inside.

[Petemate]

Mr GrimNasty said:

If you must - any primer/undercoat/paint suitable for aluminium I guess. If you bought the insulation for half the price anywhere else(!), you could have got some plasterboard as well.

Ta - I think I'll go for that then. I did think of the plasterboard, but decided not to go that far.

mrmaggit said:

Both films are the same.

I thought as much; when I looked at the panels the films did look the same.

garycat said:

You realise that the foam compresses quite easily, so anything that touches your celotex wall will leave a dent.

Thanks garycat - I could see that from looking at it in store. Should be OK as nothing drastic will go on in there, and I have made up some 25mm spacers to sink into the panels where I am going to mount the lights. Simples! as the meerkat says...

Edited by Petemate on Thursday 25th November 18:29