[Strawbale] Plaster content
t_shimkus at yahoo...
Tue Jul 19 23:00:41 CEST 2011
Last week put some scratch coat onto my strawbale garage. The render mix that I
have used for the inside was 4 parts coarse sand to 1 part pure clay to 0,5
part chopped straw. With this mix everything went perfect, no cracks appeared
when the plaster dried.
For the outside scratch coat I used the same ratio plus added hydrated lime in
powder to the mix. The ratio of the lime I tried to keep to around 5% of the
mix. The outside plaster cracked a lot. I'm sure that the reason for the cracks
was lime. There was little area outside where I did not put lime in the plaster,
and in this area no cracks appeared when the plaster dried. What ratio of lime
should I keep in the mix for the outside?
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the Strawbale