Historically, roughcast was popular for rural buildings across much of the UK, except the south-eastern half of England. It is distinct from pebble dash (or ‘dry dash’) in which the aggregate is applied separately onto wet plaster. Roughcast (also called ‘wet-dash’ in Cumbria and ‘harling’ in Scotland) is a render with a coarse finishing coat containing gravel thrown in a premixed state onto a wall. Click here to download K Rend digital brochure PDF. K-Rend Roughcast may be used as an alternative to dry dash, providing an attractive, through-coloured render finish. I would be amazed if a Tyrolean machine would work for roughcast, the mix is completely different, I'd guess all the pebbles in the roughcast would sink to the bottom and you'd have a right mess.
