Cold External Wall Wallpapering

[leevis]

I am going to be wallpaper our hallway which amazingly has an external wall. Our house does not have a cavity wall which means that the wall gets very very cold.
Is it worth putting up some of that polystyrene wallpaper and then papering over this? I know its a bit of a pain if it gets a knock but wondering if it is really worth the aggro of wallpapering twice.
L

 

[freddiemercurystwin]

What do you think a mm or two of polystyrene will actually achieve?

 

[superdon]

We used wallrock in a cold room and it 100% made a massive difference. Amazing what a couple of mm of foam backing (or whatever it is) makes.

 

[leevis]

Bought some of the 2mm stuff and slapped it up on the wall in the hall, You can definitely tell a difference when you have one hand on the bare wall and one on the polystyrene. Don't know If it will make a true difference, only time will tell when its all finished, its kind of nice not getting chills in my bones when I brush up against the bare wall now though.

Hopefully the paper will take to it

It really is a bugger to cut though tried with a sharp wallpaper knife and it still tears.