Hi
block paving is a pain
Not as bad as decking
They are not maintenance free, you have to maitain them,
Dont let leaky oily car park on drive
Never use a power washer, moss cleaners can be brushed on
I have laid several block pave drives and when finished I
apply a sealer on the silica sand this hardens the sand and stops weeds growth.
Talk to most people who lay drives they have never used or heard of the stuff
most supplier have stopped supplying through lack of demand.
Block paving suits a new house, through choice i prefer tarmac,
as long as you have a good base, they put it on main roads it must be good