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Is 2" Exterior Foam Inulation Overkill?

jwm2's Avatar
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09-10-05, 08:39 PM   #1  
Is 2" Exterior Foam Inulation Overkill?

Considering energy prices (and where they may be heading) I want to add foam insulation over existing house and extension under new vinyl siding. Is 2" foam overkill? I'm in northeast. I have 2 x 4 walls and I figured 2" may be easier than 1" becasue I'm adding new windows and I'm assuming that the jambs for 2x6 walls should fit okay.

Thanks for any adivce.

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em69's Avatar

Join Date: Jul 2005
Posts: 857

09-11-05, 06:37 PM   #2  
With only 2x4 insulated walls, adding 2" of foam would be very beneficial.

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