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Tongue & Groove Rigid Foam vs. Square Edged

aldoleopold42 | Posted in General Questions on

I was hoping to use tongue & groove Rigid foam to insulate my basement, but am having a hard time finding it locally. I can find square-edged Foamular however. With either product, I am planning on taping the seams, and using spray foam for the top and bottom of the walls, and in the corners. Will square-edged be ok or is the tongue & groove preferred/more effective?

Thanks in advance!

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  1. kbentley57 | | #1

    Square edge is fine, just do the best you can to keep them fitting tight.

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