I have a house coming up to flat render, it is alrdy pebbledashed and painted white. to save time i would prefer not to hack it off and was wondering if either scraping back pebbles, unibonding, then begin with a scratch coat to top coat? or meshing over the entire exterior of the house and fixing in place with screws, raw plugs and washers then giving it a scratch coat so forth... the pebble dash is all sound thats why i think it will be a mission 2 remove.. any ideas? thanks