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re: Foam Insulation Cost

Posted on 5/28/15 at 8:27 pm to
Posted by VetteGuy
Member since Feb 2008
28700 posts
Posted on 5/28/15 at 8:27 pm to
IIRC, it was about 50% more to do foam.

Like $18K vs $12K. I think, very conservatively, the foam lower my electricity bill $100 per month. Thus, the payback is 60 months.

The other big payback is high SEER AC, but foam is the king.
Posted by daviddsims
West Monroe
Member since Dec 2008
587 posts
Posted on 5/28/15 at 8:39 pm to
I did not know that foam was better at reducing sound levels from the outside. The main reason I wanted to do the attic was to help the HVAC equipment that will be located up there.
Posted by Libertariantiger
Member since Nov 2012
981 posts
Posted on 5/29/15 at 7:39 am to
Vetteguy, those numbers don't sound accurate. The spray foam doesn't sound way off, but base insulation will never be 12k. For instance, I spray foamed my home for 11K versus batt insulation at 3500. When getting quotes, an average 2200 sqft living house can be done in base insulation for about 2k dollars.

I have a story and a half home. The attic has 1300 sqft of living in it. In that application, I recommend foam bc the second story will never cool correctly. On one story standard houses, this is a tough decision bc you can't see the extra money. The extra 6k on a single story house could go in bathrooms and kitchens. Foam is about 4x more expensive.
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