In order for mold to flourish the moisture content has to be above 18% or so. While this is somewhat tied to air humidity because your pc will absorb water vapor from the air, it is hard to raise the content to that high number without directly pouring water onto unsealed areas. You need adequate ventilation to stay comfortable, and that constant circulation should keep your interior humidity within reasonable limits. During the cold/heating months your interior humidity often is very low, which would help.
If you weren't getting mold when it was leaking, I would think there would be less chance for mold since you have stopped water from infiltrating.
My papercrete roofs have not yet been sealed. It doesn't rain a lot here, and when it does the pc seems to dry quickly. Areas that have open seams tend to drip a little when it first starts raining, then the drips stop in a few minutes. My theory is that the pc absorbs some rain and swells enough to seal the seams.
spaceman All opinions expressed or implied are subject to change without notice upon receipt of new information.
On 7/25/2010 5:26 PM, Pack McKibben wrote:
I painted a Latex Concrete slury mix over my Hobbit House papercrete roof. No more leaks!
My question is....What do y'all think? Do you think the papercrete won't breath anymoreand I'm looking at future problems? The LC roof has been on for three months and Idon't see any mold.
Have you (if you've built a PC roof) been happy with it? What problems did you have?if anyPackyMcK
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