Bricklaying & Repointing

air brick rendering over

Anonymous user 09/03/2024 - 3.30 PM

we had damp walls due to the cavity wall insulation being wet seeped through brickwork a builders answer, was to install large air bricks in a hope to dry out the insulation ,we have now had cavity wall insulation removed but are left with 8 large air bricks in the exterior wall which now make internal walls cold can i fill the holes with silicon and render over or them ? The air bricks have been installed in the wall 3ft above damp proof coarse 4 in side wall and 4 in back wall of our 2 bed detached bungalow which both were rendered to stop water coming through old mortar (which we were told was the answer to the issue) ,air bricks are also situated (as when built) below damp proof coarse ,thank you cjm builders for your response to my question I don't think I have explained it very well The air bricks were not in situ originally they were put in by builder in an attempt to dry cavity wall insulation between cavity ,which has now been removed, i can either remove large air bricks and re-brick wall then render over to match rest of wall or I can maybe render over air bricks didn't know if it was possible ? Concrete render was used