Lime Plaster vs. Gypsum Question
New Construction, Zone 4, Western Oregon.
I don’t have experience with plastering, but am planning to plaster over the drywall I have installed in my bathroom (and throughout the home, later). I had been under the impression that lime plaster would give me an advantage against mold and mildew, where gypsum plaster (like drywall) is vulnerable to mold & mildew.
Is this true?
1) High PH (alkaline) substances are mildew resistant
2) Type S Lime is very alkaline (12 I believe), but
3) Once lime plaster cures, its ph is closer to 8.7, nearly neutral.
Is there any one out there who would still claim (based on experience) that lime plaster is better than gypsum in this regard?
I also like that lime plaster absorbs carbon as it cures. Any other opinionated folks out there on the gypsum vs. lime debate? I’d love to hear more thoughts.
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