When the man came to do my free cavity wall insulation (last year) he said he couldn`t do it because of the blown bricks on the gable end. I couldn`t afford to mend them until now and there are lots more. My gable end is out of line with the rest of my neighbours and is exposed to all weather. If i have the ones blown now replaced it seems to me that others will soon follow!That`s what the man gave as his reason not to do the insulation! So can the wall be painted with something like weathershield paint or does it need rendering or what? HELP!!