Build sand used in scratch coat (Render)

[Clarej5]

Hey Guys,

Sorry this is my first time ever posting so I’m honestly not sure if I’m doing it correctly. The other day I decided to "try" rendering the walls of the back garden. However AFTER I finished I found some posts that said NOT to use Build Sand / Red Sand.

Currently I have the entire scratch coat done using build sand, but I’m not sure where to go from here... Would it be a wasted effort to use sharp sand for the second coat... or is the job beyond repair??
Any advise would be greatly appreciated.

James

 

[cotswoldbuilders]

You might get away with it, but it really should be plastering sand, your suppliers should steer you in the right direction.
We usually do a 4 sand 1 cement for the scratch coat, and 5 sand to 1 cement float coat.
Option of adding 1 lime in each mix.

 

[dmplastering]

I use building sand everyday and never had a problem. I render approx 50 new builds a year so nothing wrong with the sand