Hiya,
I'm currently constructing an outdoor fireplace. I intend to use 3x3x3/16"
angle in a couple of places where I'll need a lintel. I intend to paint it
with high temp paint. Anyway, I'm wondering just what sort of clearance I
need around the steel for thermal expansion? Obviously I need some mortar
in there to hold the bricks together but just not sure of how much of a gap
around the steel I need.
Thanks very much,
jlc