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- #21
Definitely not doing spray foam, more than likely will be R19 batts and liner panel. I wanted a perfectly flat floor so no drains(i’ll have to think about the construction joints) for that reason. My attached garage has a floor drain in case I need to wash anything during the winter.Avoid construction joints! Hard to move heavy objects on carts and such. A friend is putting metal siding that has insulation sandwhiched in between metal. Looks better than spray foam