Graphite Insulating Lining Paper
What is it?
Graphite Insulating Lining Paper is made the same way as Insulating Lining Paper, but the polystyrene is infused with graphite. Why is it a big deal you ask. Simply, graphite has some heat reflective properties, which means that as the heat is trying to escape through the layer of polystyrene (and 1200 grade lining paper) it is reflected back into the room 20% better than it’d be with normal Insulating Lining Paper. I think it’s a very good result, especially when you think that that 4 mm polystyrene has the same insulation effect as an 85 mm of brick, 98 mm of sandstone block or 262 mm of concrete already – just add 20% on top of that. These are the numbers claimed by the manufacturer.
On the image below, you can see what the Graphite Insulating Lining Paper is made of. You can see that the normally white polystyrene is dark grey. This is caused by graphite.
The image below shows clearly the graphite polystyrene backing – it’s grey because of the graphite.
As with all polystyrene backed wallcoverings, there’s a small problem. Once you dent the polystyrene it stays that way i.e. it won’t come back up to flat level. See the example on this page.
You have to use a solvent free adhesive such as Wallrock Thermal Liner Adhesive. If you think you’d be saving yourself a few quid by using something else perhaps you need to rethink the whole job. Whilst I understand that everyone wants to get the job done as cost effectively as possible, you won’t be doing it when the Insulating Lining Paper starts coming off here and there and you have to start again.