EcoRenovator - View Single Post - Superinsulation retrofit with rigid foam-anyone done it?

Daox · 07-25-11, 02:53 PM

I would highly recommend having an energy audit done before doing work. While you may be right on about needing the insulation (and it certainly wouldn't hurt), air sealing is a MUCH bigger deal normally. A good auditor will tell you where the leaks are and how you can go about fixing them.

That being said, I recently went to a speaker who talked about doing deep energy retrofits on existing homes. Their target was ~70% reduction in energy usage and they were achieving it mainly by putting 4 inches of polystyrene on the outside of the house and then residing it. They of course did air sealing along with that via tyvek and other means.

07-25-11, 02:53 PM	#2
Daox Administrator Join Date: Aug 2008 Location: Germantown, WI Posts: 5,525 Thanks: 1,162 Thanked 374 Times in 305 Posts	I would highly recommend having an energy audit done before doing work. While you may be right on about needing the insulation (and it certainly wouldn't hurt), air sealing is a MUCH bigger deal normally. A good auditor will tell you where the leaks are and how you can go about fixing them. That being said, I recently went to a speaker who talked about doing deep energy retrofits on existing homes. Their target was ~70% reduction in energy usage and they were achieving it mainly by putting 4 inches of polystyrene on the outside of the house and then residing it. They of course did air sealing along with that via tyvek and other means. __________________ Current project - To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. & To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. Last edited by Daox; 07-25-11 at 03:04 PM..