I’m planning to construct the small front extension (the white rendered part) out of thin joint aircrete blocks. In the picture I’ve arrowed the wall which breaks this rule:
OPENINGS AND RETURNS
An opening or recess greater than 0.1m2 shall be at least 550mm from the supported wall (measured internally).
The external measurement is only 450mm i.e. one block. Is there a way round this?
Thanks.