Pros and Cons of Additional Insulation
I am preparing my house built in 2004 to be re-sided due to storm damage. I have 2×6 walls with Batt insulation in them. I am considering going with an R5 foil faced insulation under the siding from Johns Manville. It will cost me about $3k to add the insulation and trying to figure out if it is worth that investment? They will be adding tyvek over the top to completely seal the structure and leave the existing tyvek on the building. This is 3/4 inch and the contractor does not want to go any thicker due to the exterior outlets he has to work around will become more challenging. I am in climate Zone 5 (Iowa). Any thoughts or suggestions you have would be very welcome.
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