Hi So I'm going to use some thermal lining paper on an uninsulated wall that gets condensation. Cant afford to do much else right now. I am undecided whether to use wallrock thermal lining paper or there is a graphite thermal lining paper which is newer but also abit cheaper and I'm not sure which might be more appropriate. Has anyone has any experience of using either? Thanks
As far as I can tell, both are based on expanded polystyrene and both are about 4mm thick (I think I read somewhere that Wallrock was 3.2mm thick while Graphite+ is 4mm). Graphite+ claims that the addition of graphite reduces thermal conductivity by 20%. Here are the manufacturers’ stated thermal conductivity of their products in Watts per square meter per degree Kelvin of temperature difference between both sides (the lower number, the better): Anaglypta Wallrock: 12.19 BASF Graphite+: 8 This is in line with the 20% claim. Given that Graphite+ is cheaper and more insulating, you should go for that!
Whichever one you decide on you will have to crossline over the thermal liner and then hang your chosen wallpaper vertically as normal, if you are not having wallpaper as a finish you still have to crossline and then hang a lining paper vertically prior to an emulsion finish, the reason being the thermal lining papers no matter what brand you choose do move and will show on every butt joint....hence the extra lining technique is used to stabilise the wall covering especially on the expanded polystyrene graphite. I have used and hung both the products you mention many times, they will take a bit of mastering, it is important you use the recommended adhesive for the product you settle on using. Your wall will require priming first, plenty of lessons on YouTube.
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