external render ratio/materials
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bodgitnscarper
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Labourer
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Joined: Mon Apr 13, 2009 10:31 am

external render ratio/materials

by bodgitnscarper » Mon Apr 13, 2009 11:10 am

i am looking to render a small external wall. can anyone provide the correct ratio mix and sand type, will normal builders sand do? will i need any additives?

rosebery
Project Manager
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Joined: Wed Sep 26, 2007 9:55 pm

by rosebery » Mon Apr 13, 2009 11:47 pm

1 cement to 6 sand is normal but it does depend on the wall material. Use Sharp sand. Builders sand won't work and if you use that it will all fall off in due course. PVA the wall first and slap the render before it completely dries out.

Cheers

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