Hi,

I've decided to replace the dodgy bit of plasterboard sitting betwixt the
joists and the wall top.

Wall is single brick.

Do I just slide a woodent plank in onto the top of the wall (after
acro-propping the joists up a fraction and clearing out the PB) or do I
need to bed it on with something (bearing in mind the plate thickness is
about 12-15mm).

What would be a suitable material to use - is plain softwood OK?

Should I attempt to fix the joists to the plate (hard I realise as the plate
is thin)?

This is a 3.6m section of wall.


Cheers

Tim