Dont forget the depth of the dimples ! They also have to get the stuff to stick to the nylon/pvc sheets. Not sure if unibond (or similar) works like that .Well 25mm so what they do is a scratch coat, and use comb to form key for next full render coat, then 2 coats of plaster.
Either that or battern & board. Usually either as additonal insulation is added which cant be if rendered. Thats why i am intersted in this one.TBH they'll probably dot & dab it
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