Hi there, am in the process of removing an old kitchenette that's in the corner of our family room. The walls are double-brick; with the inside wall being cement rendered. I've just taken out a big old dual-fan rangehood and found that there are 2 rows of about 4 bricks missing across the top of the inner brick wall; which obviously were taken/left out to accommodate the two horizontal vents/ducts from the rangehood to the outside. This gap doesn't involve any load-bearing issues or anything like that, but my question is - how to make good on this gap solidly enough so I can cosmetically redo the inner wall surface/lining? Do I:
- mortar in new bricks?
- glue in a solid block of timber to fit the gap?
- something else?
Whatever I do, it doesn't need to be pretty, as there'll ultimately be a new wall surface/lining of some sort to hide it all. Whether that'll be a re-render, or plasterboard, or something else; I haven't quite decided yet.
Cheers!

