Can anyone recomend what i can use to insulate the cavity wall in the conservatory,just thought i would do it while renewing the inner window sills..
Been told to fill it with polystyrene balls, is this a good idea and if so can you use any balls i.e the bean bag stuff...
Cheers
Been told to fill it with polystyrene balls, is this a good idea and if so can you use any balls i.e the bean bag stuff...
Cheers