On Tue, 6 Apr 2004 14:48:54 +0000 (UTC), a particular chimpanzee named
"Charles Middleton" randomly hit the keyboard
and produced:

So do you think there are two courses of bricks in between the house and
plaster either side of those?

e.g.

My House - |Plaster| - |Breeze Block| - |Breeze Block| - |Plaster| - Next
Door

Most likely:
Your -|P'bd|-|10mm|-|Conc |-|50-75mm|-|Conc |-|10mm|-|p'bd|-Next
house | | |gap | |block| |cavity | |block| |gap | | | door.

The thing you have to worry about (apart from making sure the fixings
are adequate to support the load and that, if the blocks are aerated
concrete, you have the right fixings), is transmission of sound. If
the screen contains any speakers, fixing them to the wall can transmit
a lot more of the lower frequencies through to next door.
--
Hugo Nebula
"The fact that no-one on the internet wants a piece of this
shows you just how far you've strayed from the pack".