I have been asked to put in a simple step to a front door. Trouble is there is an airbrick (one of many on that wall) right where the step will be. Do I have to put a new one in somewhere else or can I just build over it, given that its not the only one nearby? Am waiting for a call from BCO but have been waiting a long time, so I thought I'd raise it here too.
Do air bricks go through justy the outer skin or do they span to the inner one too?
Do air bricks go through justy the outer skin or do they span to the inner one too?
