Question from Lora
What would be the least toxic whole house spray foams to use for insulation. the type you would spray in your exterior walls (and interior?). the type that expand when you spray in walls. my husband just wants to get something from home depot or lowes and i’m really stressing about this and possible off-gassing for years as i have MCS.
What should I use?
Here are some answers to your question that I found online, written by green building experts.
This post pretty much answers the question with a well-explained NO. However another expert has a different viewpoint
This expert asserts that the finished, cured spray foam is NOT harmful to health but the installation of the foam is hazardous. And she admits that some foam is incorrectly installed and therein lies the problem.
Here you will find all the Zero VOC options, both blow-in and batt. Great review with the pros and cons of fifteen options. I think you’ll find your answer here.
That said, readers, if you have any suggestions from your own experience, please post them here.