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I continually read about the scratch coat and then the 2nd top coat in relation to rendering, but I'm puzzled as to what the 2nd coat is for? Logically I'm assuming it's either to get the necessary thickness (my next question...) or to get a nice smooth finish? Any ideas?
Secondly, I need to calculate the quantities of sand & cement I need but have no idea on the thickness I need in the render. What is the approximate thickness per coat (i.e. scratch coat and top coat) I should be looking at? I'm assuming then I just work it out in cubic metres.
The plan is to paint much of the wall after it's been rendered, and for a smaller portion of it to apply a coloured Tyrolean finish.
Thanks.
Secondly, I need to calculate the quantities of sand & cement I need but have no idea on the thickness I need in the render. What is the approximate thickness per coat (i.e. scratch coat and top coat) I should be looking at? I'm assuming then I just work it out in cubic metres.
The plan is to paint much of the wall after it's been rendered, and for a smaller portion of it to apply a coloured Tyrolean finish.
Thanks.