[Cob] Mould on cob wall

[Lance Collins]

Hi Jane,

I used a small spray bottle with a 10 percent solution of pool chlorine 
(kitchen bleach would do) to zap mould on my wall.   It took only a minute 
or two once a week to keep the mould under control until the wall dried 
(and the weather warmed).   I was working in winter and the air was damp 
and around ten to fifteen degrees Celcius.  My mould was a bit like white 
fluffy cotton wool.

HTH
Lance



>We have been building a small cob house for some months now, and will soon 
>be finished. For the last week or two it has been raining quite heavily, 
>and now some of the cob has begun to go mouldy - just a little bit on the 
>surface, but still, I do not like it. Moreover, some seeds from the straw 
>has begun to germinate.
>
>Does anyone know if these things are a problem? And if so, is there 
>something to do about it? We are building under a roof so it doesn't rain 
>directly on the cob, but the air has been humid and not very warm - around 
>15 degrees celtigrade which is a bit cool for late june, but not unusual.
>
>We are planning to build a dwelling house next summer (we have just gotten 
>our permit), so if there is any serious problems with cob and the (often) 
>wet danish summers it would be nice to know about it beforehand.
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