Nomatherm Insulation paper?

[David]

Hi there,

What are your thoughts on this?

are thinking of using it in a small room in the house which is particularly cold and with little space for a larger radiator, there are two external, solid and uninsulated walls.

Even if it makes just a little bit of difference it will be good, the walls currently feel very cold in winter and you can feel cool air running on the walls.

Cheers

[dent]

When I moved into my current house it had this, or something very like it, in several rooms. I can't say that I noticed the difference though; the walls were still cold to the touch. I removed it in when I redecorated.

If you don't mind losing a bit of room size, insulated plasterboard might be a better option?

dan.

[HappyHunter]

Hi,

I used the Wallrock thermal lining paper

on a good sized double bedroom, with 2 external walls (solid walls, lathe&plaster ie no insulation), and the other 2 walls being mostly (a good two thirds each) unheated stairs. So, it was a pretty cold room !

Anyway, have found it has made a difference, but am really not sure how scientific that is ! When I was working in the room papering/painting I felt it had made a big difference (again though, was i kidding myself on ?). Anyway, the walls are certainly not anywhere near as cold to the touch anymore, so think it must be making a difference.

I used the wallrock thermal liner, then the fibreliner, then a blown vinyl on top of that, then paint.

Would I use it again ? Hmmmmmmm it is very expensive. The room I did was a bit of a one-off as it was by far the coldest room in the house. Guess I'd need to think long and hard about the likely benefit versus the cost to use it in any other rooms.

Ailsa

[The Natural Philosopher]

At a U value of 32, its almost completely useless.

4" of brick is already maybe a U value of 10 or less. 3mm of styrene foam is a U value of 10.

[The Natural Philosopher]

I used cork tiles in one chilly 4" solid brick extension I rented.

Made a lot of difference. Cork quite like polystyrene thermal wise.

Need a U value of less than 10 to start to make a difference on 4" brick. Maybe less than 5 to make a difference on solid 9".

[stuart noble]

I did a cork lined room for my son back in the 70s. Unlike Proust, he never did write a novel though. IIRC it was much cheaper buying the stuff from a cork merchant rather than as tiles.

[Martin Bonner]

External solid walls have a U value of 2. The paper is quoted as having a U value of 32. The combined U value will be 1/(1/2 + 1/32) =3D

1/(16/32 + 1/32) =3D 1/(17/32) =3D 32/17 =3D 1.88.

That's "a little bit of difference" ... but it's only 5%

A 27mm insulated plasterboard would bring it down to 0.88 (which is

50%). Personally, if you were going to redecorate the surface, I'd go the whole hog. I am just finishing snagging our new bathroom which has 100mm Pavadentro wood fibre insulation - that gives a U value of ~0.5. The alternative is 70mm Celotex + plasterboard, which gives a U value of ~0.3