Please see pic Below This is a box that holds up the upstairs exterior wall up with 2 large Rsj and there is the cavity My question is what type if insulation should I use to fill the void I do have 2 rolls of loft insulation but I'm thinking this is not the best idea as loft insulation does not dry out very fast if moisture gets to it and as the box section is under the cavity there is a chance of condensation so my idea was to use loose wall insulation would be better ? Or any other thing would be better if any one can recommend some thing Thanks for any help
yes in the middle of the painting and new rad in the next room so using it as storage at the mo in the pic 1/3 down the box section that is fresh plasterboard is the bit that i need to fill
This is a bit like Rolf Harris "Can you tell what it is yet ?" Looked at it a few times even with the picture on the side, it isn't obvious
there is no condensation but there is a gap the heat from the house can get to the cavity its only one piece of plasterboard to stop the heat escaping in to the upstairs cavity between the 2 walls of the house
This is the box section that covers the 2 rsj they are off set so there is a bit of space if you remove the bottem piece of plaster board you can see all the way up in to the cavity
If I'm looking at this right, if you can get at it, cut celotex/kingspan foam insulation and fit it in between the space between the rsj's, you may need to wedge timber up above in between the webs to have a level to stop the insulation at. I would also take off the plasterboard on the sides of the rsj's, fit insulation in the web with a bit of expanding foam to secure and seal gaps then refit. To finish off the bare underside of the two rsj's I would run a couple of beads of expanding foam the full length, then wedge plasterboard up tight, give a few hours to fully cure, then take away the props wedging the plasterboard. Bead the external corners with galvanized angle bead, the internal corners with scrim tape, and get it skimmed. Jobs hopefully a good 'un.
Heres a pic of the inside it's been open unti I mover in thr property I'm going round and doing what I can to help with insulation as I do expect to live there for a fair few years Putting soild stuff in there is going to be a pain in the rearend so loose or the type of loft stuff is going to be a lot easier as I can tuck it in
The exterior wall will get damp. To what degree, well, that depends on the bricks, the pointing, the mortar and the aspect of the wall, and any other nearby buildings, etc. That, presumably is, at the moment, an unknown factor, so right now I wouldn't put any insulation in. You may get a fair bit of damp coming down from that wall, in that case the last thing you want to do is put anything absorbent in it's way. Right now I would be tempted to just leave it and see what happens. You aren't going to lose a significant amount of heat through there.
I have had it open for a fair few months as been doing work around in the ajoining rooms ceilings down
You could stuff it with mineral wool insulation and you need fit plasterboard to fire protect the steels
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