Thinnest insulation under DEVI

[Diggy]

Hi all ,
Got a DEVI mat from my bathroom and want to put some insulation on the screed first. Marmox appear to do a 4mm board but I was looking for something a little thinner and less rigid. I've used a product on site before that was probably no more than 2mm thick but can't remember for the life of me what it was called and where it came from.
Any names come to mind to save me scouring google or phoning techies at DEVI ( Now Danfoss ).

Cheers

Diggy

 

[Ajax123]

Hi all ,
Got a DEVI mat from my bathroom and want to put some insulation on the screed first. Marmox appear to do a 4mm board but I was looking for something a little thinner and less rigid. I've used a product on site before that was probably no more than 2mm thick but can't remember for the life of me what it was called and where it came from.
Any names come to mind to save me scouring google or phoning techies at DEVI ( Now Danfoss ).

Cheers

Diggy

2mm or even 4mm of insulation is likely to be of little or no value.

 

[DHTiling]

For any benefit then IMO is has to be 10mm minimum.

 

[Gazzer]

For any benefit then IMO is has to be 10mm minimum.

I was always told the same.

 

[Diggy]

Fairy snuff I won't bother then , its 200W contractor mat so I'll just ping it straight to the floor as I have'nt got enough height tbh.

Cheers

Diggy

 

[Ajax123]

I don't think id bother with the mat at all without insulation. Your screed will act as a heat sink and suck all the heat out of it. I don't think you will get any warming benefit.

 

[beanz]

I don't think id bother with the mat at all without insulation. Your screed will act as a heat sink and suck all the heat out of it. I don't think you will get any warming benefit.

That's not true. The tiles will still warm, it just won't be as efficient.

 

[Ajax123]

That's not true. The tiles will still warm, it just won't be as efficient.

It'll warm the tiles eventually perhaps but the lag time will be huge.

- - - Updated - - -

That's not true. The tiles will still warm, it just won't be as efficient.

It'll warm the tiles eventually perhaps but the lag time will be huge.

 

[DHTiling]

The running costs will be HUGE!!!!! without it.

 

[beanz]

I've yet to use insulation boards, as customers never want to raise the floor by that much!?! No-one has ever complained to me about the running costs, but then it was their choice, so maybe they just turn it off lol!

 

[Diggy]

Yeh , I'm now studying U values of 6mm & 10mm insulation board. It appears going from 10mm down to 6mm halves the heat loss.

Might have to put a bit of a threshold in the doorway though.

Hmmmmm , descisions.

Diggy

 

[Rookery]

Dont want to be picky but surely going from 10mm down to 6mm doubles the heat loss not halve it?

 

[Diggy]

You know what i meant cheeky.

Diggy :0)

 

[Diggy]

Ok , anyone used the sponsors insulation board 'EKOBOARD'?

Any good?

Diggy

 

[Uheat - Keith]

Good morning all,
HEATING.
We always say over telephone or on our quotations:-
Ekoboard insulation boards for use on concrete based floors.
Marmox construction insulation boards for use on wood based floors.
Insulation board will need an overall extra thickness of 2mm over the board thickness. for 2mm powdered flexible tile adhesive under the boards to fix.
We stock Marmox as well, like Ekoboard, the best of its type.
We have had some people use Ekoboards on ply etc, but that would be down to their choice.

Ekoboards are the 'guts' of construction insulation boards without the concrete polymer embedded in a fibreglass mesh on each side.
Ekoboards are 'closed cell' extruded polystyrene.
There are many different types of extruded poltstyrene, so be careful. Our is the 'floor grade' version and does the job we ask of it.
150,000+ boards sold since 2006.

Hope that is of some help, warm regards, Keith.