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IgReilly

Repointing cavity wall - best time to do it etc?

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IgReilly    0

My place has a room over a carport with a 3.5m horiz. crack (outside & a bit lower inside), about 6 courses up in the rendered blockwork cavity wall that's sits on the lintel over the entrance to the carport.

Is there a best time to repoint (I thought Spring or autumn, somewhere between the extremes of expansion/contraction in winter/summer).

Is there a procedure, obviously I don't just cut out a 3.5m length of mortar course in one hit, and then think about getting some mortar put back in?

What happens when a wall tie is encountered?

What mix mortar goes back in?

What about the various mortar raking tools available from Scre**ix. Are they up to it?

And any tips, generally, would be welcome.

Edited by IgReilly

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