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Where do homes have "exterior drywall"?
by mh- 4y ago
Where do homes have "exterior drywall"?
- jeffbee 4y agoI guess they meant demolish the interior finishes of exterior walls, spray foam the wall cavities. That's certainly a way to retrofit an older building, but you still need a heat pump.
- mh- 4y agoAh, thanks. I get what they mean now. It doesn't sound like a good idea, but I get what they mean. :)
- endisneigh 4y agoYou really don’t. I’ve been in a house in Maine with spray foam in 20 degrees with no heat turned on and interior temp was around 65. It was pretty amazing actually. A heat pump isn’t cost effective compared to Reno with spray foam. An average heat pump probably takes a decade minimum to pay off.
- t3rabytes 4y agodrywall on the interior of exterior-facing walls