Questions and answers relating to houses built in the 1800s and before.
2 posts • Page 1 of 1
I have an 1840s home and my inspector recommended installing a vapor barrier in the dirt floor crawl space as well as doing closed cell spray foam on the ceiling of the crawl space. I am wondering how necessary/important this is? I also have read a lot of information on how old houses need to breathe and wonder if a vapor barrier would harm the home in any way. Particularly it seems like mold would potentially grow under the vapor barrier. Look forward to hearing people's thoughts!
We have an 1860 log home with a crawl space under it. Thirty seven years ago when we moved in it was damp and slightly muddy. Due to its slope I was only able to put a moisture barrier of plastic over about 80% of the crawl space. Today it still has the same plastic and it seems very dry but i did install a vent on the shallow side and a vent in the crawl space door which I open in the summer and close in winter. I have not insulated it but I repointed the stone foundation because of the drafts.