I've just spent the last week or so cleaning out the 90mm wide cavities in an old cottage (aprox 100yrs), it took some doing as the crap was as a metre deep in some places. I'm now thinking of how to insulate, obviously CWI would be by far the easiest route although I know it can be a controversial subject as I've spent absolutely hours researching it & the info out there seems to be conflicting to say the least.
The main thing that got me thinking though was the fact that the cavity obviously extends down past the floors & DPC which I have also just done so wouldn't this mean that the insulation beads could be sat in the damp bellow the DPC then transmit moisture upwards past the DPC? I know from having all the floors up that the dirt subfloor gets a bit damp in the winter, I sorted the old air bricks & installed new ones etc which helped a lot but it still gets a bit damp so thinking the bricks bellow the DPC be as well.
Any thoughts appreciated.
Cheers.
The main thing that got me thinking though was the fact that the cavity obviously extends down past the floors & DPC which I have also just done so wouldn't this mean that the insulation beads could be sat in the damp bellow the DPC then transmit moisture upwards past the DPC? I know from having all the floors up that the dirt subfloor gets a bit damp in the winter, I sorted the old air bricks & installed new ones etc which helped a lot but it still gets a bit damp so thinking the bricks bellow the DPC be as well.
Any thoughts appreciated.
Cheers.
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