A friend has a compost heap in her garden. It is surrounded by 3-foot-high brick walls on three sides and a breeze-block wall at the back. It's on a concrete base.
She wants to add a dividing brick wall within it to separate it into two halves.
What is the best way of tying this wall into the existing ones so it doesn't fall over. Is it necessary to dig out some of the exisiting mortar to insert metal "butterfly" ties and then re-mortar around them, and then incorporate those ties into the new courses of bricks?
(view in a fixed-pitch font)
============T========== T | | | T ============T==========
= existing brickwork
- new brickwork T butterfly tie