Green Homes News

Room above garage – Insulation redo after “Retrofoam” fumes

Green Homes 2 - Mon, 2025-08-25 14:19
We recently had a room above our garage insulated with "retrofoam" or "injection foam" and based on the SDS provided, it was supposed to be a non-off gassing type of…
Categories: Green Homes

The value of a ductless ERV in a Cape style home renovation

Green Homes 2 - Mon, 2025-08-25 07:15
Hi All, We are currently renovating a 1960 1100 SF cape-style home in CT (zone 5A). We had asbestos in all of our drywall, so we took the whole house…
Categories: Green Homes

How to flash and air-seal a retrofit penetration in a rain screen

Green Homes 2 - Mon, 2025-08-25 02:00
How to correctly flash a penetration without removing siding
Categories: Green Homes

Basement Garage Insulation – Advice Needed

Green Homes 2 - Sun, 2025-08-24 18:33
Hello - I need some advice. I want to insulate this basement wall. Given the existing condition, I'm not sure what the next steps should be. Details:-Marine zone 4a (Seattle area)-I…
Categories: Green Homes

1960’s Catherderal Ceiling with Celotex

Green Homes 2 - Sun, 2025-08-24 07:45
A friend just bought a house that has exposed rafters and some type of structural fibrous cementitious roof "sheathing". It appears to be 2 inches thick. The building inspector was…
Categories: Green Homes

Filling the gap before Siga Fentrim tape?

Green Homes 2 - Sat, 2025-08-23 15:54
We have a tape between our foam and sheathing that Siga said we need to fill somehow before using their tape. They first recommended caulk, backer rod and then taping…
Categories: Green Homes

Insulation for flat roof over minimally-heated garage

Green Homes 2 - Fri, 2025-08-22 23:25
I’m building a shop-on-top-of-garage in a 6B/5B climate zone (my county was changed in the last decade from 5B to 6B, but my particular location is probably closer to 6B…
Categories: Green Homes

HVAC for MultiFamily in FL (Ptac, Vtac, VRF, or other)

Green Homes 2 - Fri, 2025-08-22 15:24
I'm a developer of 76 unit microunit apartments in Florida (avg sq ft 300) and am exploring hvac options. I like the accessibility and maintenace of PTACs and VTACs but…
Categories: Green Homes

Insulating a Small Existing Slab

Green Homes 2 - Fri, 2025-08-22 13:07
I'm renovating what used to be a detached single garage (12x24ft). The car door has been removed and I'll be sealing and insulating it so I can efficiently heat it…
Categories: Green Homes

Attic insulation in a unvented conditioned attic

Green Homes 2 - Fri, 2025-08-22 08:49
Hi all,We have an attic space above our house and garage and have built an unvented and conditioned attic with the HVAC heat pumps/ducts in the attic space. We close…
Categories: Green Homes

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