I'm planning an outdoor kitchen.
This will be a simple brick sided bench about 3 metres long and maybe 800 mm deep.
I'm going to build it on a slab to support the weight and ensure a level surface.
As one end of the bench will butt onto the side of my house, I was wondering if there are reasons for or against leaving a gap between the new slab and the house's one.
I would like to not have a gap in the brickwork so as not to leave sanctuary for spiders and other creatures (I live in Australia).