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| Sand (5 part) , saw dust (1 part) and water - for wall render cost of 100 kilo sack of saw dust 50p compared to cement 50 kilo sack for £10 |
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| local knowledge - Rwanda guy applys sample render to existing house |
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| close up detail photo of sand sawdust and water mix applied onto local wattle and daube house - you can see the thin strands of saw dust act as binder to glue sand particles together |
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| after a week in the rain and exposed to elements it has dried solid with no defects and feel very hard like cement we will be using this render on all the internal walls instead of cement |
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