Should I spray foam a cobblestone foundation?
The interior of my cobblestone foundation needs to be repointed. No stones are loose, but there are deep pockets in a lot of areas.
As part of a complete gut and remodel taking place this spring, several professionals have suggested that instead of repointing with mortar, that I could simply have the insulators spray the stone with foam as they are insulating the walls and ceiling.
The exterior of the foundation looks fine. The area in question is a crawl space with a dirt floor and a large cistern that is no longer in use. The house is located in Rochester, NY, and was built around 1900.
Is this a good idea? Does the foam have enough strength and durability that I wouldn't need to repoint with mortar first? My research has turned up both sides of the argument. Are there any concerns with ants or rodents? Any guidance is very appreciated.
Posted Sun, 03/09/2014 - 18:07
Edited Mon, 03/10/2014 - 05:05
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