last spring i was working on a road and so was another outfit. they washed three drives, did a good job but never re sanded the drives which were block paving. today i was on that road again and went to look. the drive i did was resanded and there was a new layer of moss on all the chamfers. the un resanded drives had no moss and no weeds. i am thinking is it really necessary to resand on domestic bolcks which are on the flat with little traffic 'cos resanding is a real pain given the climate we have and particularly if it's a job that is miles away. i know that the sand is supposed to consolidate the structure of the bock etc but would be interested to hear comments. i am thinking of giving customers a rebate and a bag of sand to do there own.
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