just a few pics of a room im doing in my attic im using 2" polystyrene sandwhich in between 2 8mm osb
the sides are osb and there will be a mother room built inside call me paranoied but do you think this will stop heat signs cos the police chopper is always round day and night

the room measures 10'x6'x7' feel free to comment or if i have done something wrong
[attachmentid=64498]
[attachmentid=64497]