Green Homes News

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

Air Sealing Exterior Between Sheathing & Foam Board… sealant, backer rod & Siga?

Green Homes 2 - Fri, 2025-08-22 07:01
We have Siga Fentrim 4” tape to seal the plane between the bottom of our sheathing and exterior insulation. My question is, there is a fairly large air gap between…
Categories: Green Homes

Commercial Blower Door Testing

Green Homes 2 - Fri, 2025-08-22 02:00
The codes and processes of blower door testing commercial buildings
Categories: Green Homes

Window install- barrier vs drainage method?

Green Homes 2 - Thu, 2025-08-21 20:36
Hello, very soon my new Andersen wood-clad e-series casement windows will be arriving to replace my existing damaged windows. I’ll be doing a full-fin replacement so interior and exterior trim…
Categories: Green Homes

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