DIYbanter - View Single Post

wrote:
As the price of heating has increased, I have started to think about
Cavity wall insulation again.
I have previously been put off the idea due I always thought that you
needed the air gap to prevent damp,
therefore filling the gap with rock wool may cause damp.

Does any body have any ideas as to the problems that can occur ?

As it does seem a no brainer as it will only cost about 200 pounds
and this can be saved in one year.

i'd recomend it. my 1950's semi was done 6 years ago and the difference it
made to the heat retention of the house was very noticable.

steve