Green Homes News

Double-Stud Wall: Second-Floor Band Joist

Green Homes 2 - Wed, 2022-07-06 02:00
A detail for minimizing moisture migration and air leakage in a high-performance wall with standard band joist
Categories: Green Homes

2×12 deck ledger against 2×12 rim

Green Homes 2 - Tue, 2022-07-05 21:33
I’ve already bought all my lumber for the deck, i went with 2x12s since that’s what my sub floor wasi wasn’t thinking that I need drop the ledger 2 or…
Categories: Green Homes

Durability of Cathedral Roof Assembly

Green Homes 2 - Tue, 2022-07-05 20:37
I am finalizing my roof assembly for a Passive House (non-certified) build in Climate zone 5a (Denver metro area).  I am the designer, but working with an architect/structural engineer for…
Categories: Green Homes

Using Mini-split to supplement oil boiler for heat

Green Homes 2 - Tue, 2022-07-05 17:53
We have a seasonal residence in Maine when we leave for the winter months (Oct - May).  We have a mini-split heat pump that we use June - Sept for…
Categories: Green Homes

Adding AC to existing NG furnace… upgrade to full electric?

Green Homes 2 - Tue, 2022-07-05 17:48
A neighbor with an older house is pricing out installation of an A-coil air conditioner to her existing gas furnace and ductwork.  Contractor is spec'ing a run-of-the mill Rheem unit. …
Categories: Green Homes

Seeking insulation recommendations for converted attic

Green Homes 2 - Tue, 2022-07-05 16:00
I'm renovating a converted attic and found that the previous owner has non-standard stud spacing (ranging from 19" to 24" between the studs in the walls... I have yet to…
Categories: Green Homes

Correctly calculating an A-frame mini split load so I can weed out bad HVAC guys?

Green Homes 2 - Tue, 2022-07-05 14:04
I have an a-frame, almost perfect 32x32x32 triangle. Using online calculator I got about 22,400 cubic feet (this does not include the 3' conditioned crawl space). I have 2 bedrooms…
Categories: Green Homes

Govee Hygrometer Thermometer

Green Homes 2 - Tue, 2022-07-05 12:24
Wonder if anyone else was using the Govee Hygrometer Thermometer and application  to monitor crawl space temperature and humidly. I've been pretty happy with  mine and the free Android application…
Categories: Green Homes

Air-Sealing Between Second Floor and Attic

Green Homes 2 - Tue, 2022-07-05 10:31
I'm working on doing some air sealing in my home to get better comfort and efficiency. There are more (an bigger) difficulties than this one, but I have to start…
Categories: Green Homes

Condensation on Intake Ducts

Green Homes 2 - Tue, 2022-07-05 10:18
I will be building a house at 4000' elevation, zone 2B outside of Tucson. It will have an ERV system and make up air system. The intake air for both…
Categories: Green Homes

Best way to integrate Prosoco FastFlash with housewrap (Tyvek)

Green Homes 2 - Tue, 2022-07-05 05:20
Hi, we are about to flash our windows and narrowed it down to using liquid flashing for windows (Prosoco FastFlash). However, we are using a standard housewrap and I was…
Categories: Green Homes

Insulated metal roof details?

Green Homes 2 - Tue, 2022-07-05 04:54
I'm researching roof details for an insulated 8x12' shed/workshop and came across this diagram from this site that I like: However, this article on hybrid roof assemblies calls for a…
Categories: Green Homes

Carbon Capture and Storage: Real Solution or Band-Aid?

Green Homes 2 - Tue, 2022-07-05 02:00
Long discussed but rarely used, carbon capture and storage projects are on the rise globally
Categories: Green Homes

Mitsubishi Minisplit Minimum Cooling Capacity

Green Homes 2 - Mon, 2022-07-04 23:16
I have been looking at specs on Mitsubishi minisplits. For the FS model, a unit rated at 9,000 Btu/h has a minimum cooling capacity of 1,700 and a 12,000 has…
Categories: Green Homes

Patio and grass above exposed brick

Green Homes 2 - Mon, 2022-07-04 16:37
Hello! We're doing a landscaping project and the contractor is saying the parging is not up to code as there should be around 4 inches of parging between the top…
Categories: Green Homes

Venting small conditioned attic spaces

Green Homes 2 - Mon, 2022-07-04 14:59
I am building a two story - well 1 story w loft with a 12:12 pitch gable roof. On the loft the ceiling pitches up to the 10 ft mark…
Categories: Green Homes

Should I insulate my shed? If so, how?

Green Homes 2 - Mon, 2022-07-04 14:25
Hi,I'm planning on building a 14'x8'x9' shed in the near future for general storage including our surplus wood floors and construction materials. It will have to doors facing NW with…
Categories: Green Homes

Yet another research project – Geo Thermal

Green Homes 2 - Mon, 2022-07-04 11:52
Currently have open loop water based geo-thermal (about a 3 ton unit) drawing from private well and discharging to local stream.  Local PFAS contamination is driving state environmental department to…
Categories: Green Homes

Insulating Rooms in Attic

Green Homes 2 - Mon, 2022-07-04 09:38
We are building a home in SE Kansas (Zone 4A) with a bonus room over the garage and a little bit of bonus space of the adjacent part of the…
Categories: Green Homes

Insulation requirements

Green Homes 2 - Mon, 2022-07-04 08:26
Hello,When we bought our home 3 years ago it was done by a cheap builder. We are starting to see the issues where they cut corners. With that being said…
Categories: Green Homes


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