hi,
im in trouble again!!!
converting my cellar and decided to use insulation....
i live in an inner terraced house....
the external wall in the cellar is damp...the floor is concrete and completely dry.....
SO....
i have used visqueen directly onto the damp wall placing double 25mm battens (50mm total) over the top with Kingspan 40mm boards inbetween them.....i have then used aluminium foil tape to seal the gaps......then 12.5mm plasterboard to finish....
BUT
tonight when i was tidying up i noticed on a section i hadn't finished yet that there was moisture on the visqueen......i pulled back one of the insulation boards (wasnt taped up) to find that this too had moisture on the visqueen behind it..... i then (on a part already finished) proceeded to take off a section of plasterboard, cut the tape and removed the insulation to find no moisture on the visqueen (although there appeared to be some where the battens met the visqueen.....
1.
what, if anything i have done wrong? (i suspect i have)
2.
if i have what can i do about it?
i also plan to insulate the joists above with 100mm knauf insulating rolls....the depth of the joists is 175mm approx...then 15mm soundbloc plasterboard...i have also nailed up some hardboard onto the floorboards above and filled gaps with silicone (to avoid spills from exposed floorboards in living room above)
please note there are also two air bricks on the external wall which sit in the depth of the joists, and are currrently covered...although if uncovered will probably not help much once the ceiling goes up!!!
your help is much needed and much appreciated!!!!!
thanx
Gazza!!!
im in trouble again!!!
converting my cellar and decided to use insulation....
i live in an inner terraced house....
the external wall in the cellar is damp...the floor is concrete and completely dry.....
SO....
i have used visqueen directly onto the damp wall placing double 25mm battens (50mm total) over the top with Kingspan 40mm boards inbetween them.....i have then used aluminium foil tape to seal the gaps......then 12.5mm plasterboard to finish....
BUT
tonight when i was tidying up i noticed on a section i hadn't finished yet that there was moisture on the visqueen......i pulled back one of the insulation boards (wasnt taped up) to find that this too had moisture on the visqueen behind it..... i then (on a part already finished) proceeded to take off a section of plasterboard, cut the tape and removed the insulation to find no moisture on the visqueen (although there appeared to be some where the battens met the visqueen.....
1.
what, if anything i have done wrong? (i suspect i have)
2.
if i have what can i do about it?
i also plan to insulate the joists above with 100mm knauf insulating rolls....the depth of the joists is 175mm approx...then 15mm soundbloc plasterboard...i have also nailed up some hardboard onto the floorboards above and filled gaps with silicone (to avoid spills from exposed floorboards in living room above)
please note there are also two air bricks on the external wall which sit in the depth of the joists, and are currrently covered...although if uncovered will probably not help much once the ceiling goes up!!!
your help is much needed and much appreciated!!!!!
thanx
Gazza!!!