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Thread ID: 118159 2011-05-22 03:48:00 Retrofitting Wall Insulation pine-o-cleen (2955) PC World Chat
Post ID Timestamp Content User
1204231 2011-05-22 13:16:00 Just because something is used and approved doesn't mean it's good.

Asbestos used to be used and approved...
Agent_24 (57)
1204232 2011-05-23 05:31:00 ^ Like. pine-o-cleen (2955)
1204233 2011-05-23 07:49:00 I would think bean bag beans would settle a little bit over time, but its not like someone is sitting on them, maybe 5-tens years drill a few random holes to check Gobe1 (6290)
1204234 2011-05-23 08:03:00 I have seen this guy blow polystyrene beads into a wall at an impressive speed, but as Terry says, he doesn't put them into any cavity that has TPS power cables.

www.myonlinediary.com
decibel (11645)
1204235 2011-05-23 08:43:00 What bad things have you heard about Airfoam?

They wouldn't be allowed to put it in your home if it was bad for you.

We had Airfoam installed in our last home.When we came to redo the Kitchen/Dining room we found that the airfoam had shrunk quite a bit in the wall cavity.
wmoore (6009)
1204236 2011-05-23 08:49:00 I think the info here points to the fact that if you want it to work properly, you're going to have to rip the walls off and do it the hard way. Agent_24 (57)
1204237 2011-05-23 08:56:00 ^ That gave me a great idea. Most 1920's-1930's houses don't have dwangs (nogs), and most (not all) have large roof spaces. So drilling a hole at the top of the wall cavity (into the top plate and blowing in polystyrene beads would work rather well. Obviously walls with TPS mains cables couldn't be filled, but, if rewiring needs doing then non-migratory TPS could be fitted (which is the case with the house we were looking at).

Also, a 'lid' could be installed over the holes (a small bit of ply with 2 screws holding it down) and this could be removed and the beads topped up if they ever did settle too much.
pine-o-cleen (2955)
1204238 2011-05-23 11:13:00 Don't know if this is available here, but an interesting approach in the US of A.

www.greenbuildingadvisor.com
Scouse (83)
1204239 2011-05-23 11:53:00 I have seen this guy blow polystyrene beads into a wall at an impressive speed, but as Terry says, he doesn't put them into any cavity that has TPS power cables.

www.myonlinediary.com

Why cant you put polystyrene beads ontop of a tps cable in the wall?
prefect (6291)
1204240 2011-05-23 12:36:00 Why cant you put polystyrene beads ontop of a tps cable in the wall?
There is a reaction between the two and the cabling can go brittle. Building paper can also be affected.
mikebartnz (21)
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