Overcoating ewi - dry dash finish

[rt88]

Not posted for a while. Bought my house 9 years ago, ewi was done 11/12 years ago and the dry dash finish could be doing with a freshing up in the next couple of years. I've overcoated plenty of dry dash with enewalls exposed aggregate top coat and the stone pack equivalent. So there's no problem on that part, my main concern is the extra weight the boards would be carrying? Or am I just overthinking this?

 

[malc]

why not try to power wash? a flint or spar should clean up.
a pea shingle may be different, a cheap stone would just lime bloom.

 

[rt88]

why not try to power wash? a flint or spar should clean up.
a pea shingle may be different, a cheap stone would just lime bloom.

Cheers malc, one of my neighbours tried this but to be honest it removed quite alot of the chips. He got a company in to clean it with a solution, whether or not that was the problem in not sure. I'm In the West Coast of Scotland, heavy rain and wind constantly, so render never stays looking fresh for too long unfortunately.