Green Homes News

The BS* + Beer Show: Vapor Control

Green Homes 2 - Wed, 2023-01-18 02:00
Learn why vapor in our buildings matters and how to think about and solve for it
Categories: Green Homes

Builder sub recommends double wrapping

Green Homes 2 - Tue, 2023-01-17 19:59
Hi all. I am building in MD (Climate Zone 4). Framing has started and I am in a weird situation. Building specs include OSB sheathing and house wrap. I asked…
Categories: Green Homes

Risk of Open Cell Foam P+L Wall, No Sheathing

Green Homes 2 - Tue, 2023-01-17 19:42
Climate 4. 1930’s house with 2x4 (actual) walls and clapboard + tar or felt paper. No sheathing. After reading Martin’s article on the benefits of a rain screen, Dr. Joe’s experience…
Categories: Green Homes

Polyiso foam board under rafters when using closed-cell: Comparing two approaches

Green Homes 2 - Tue, 2023-01-17 19:36
The ceiling for my future four-season room will have to be spray foamed.  (I would have greatly preferred a different approach, but it gets too complicated with my town, not…
Categories: Green Homes

Vapor barrier in unvented roof

Green Homes 2 - Tue, 2023-01-17 19:31
I have an unvented roof assembly in Zone 5 New York that doesn't quite match the Pennsylvania Housing Research Center's spec. I have attached their PDF doc that explains I…
Categories: Green Homes

5 Cases (60 tubes) of Bona R850T

Green Homes 2 - Tue, 2023-01-17 17:51
Anyone in the northern Michigan area want some floor glue?We have a lot of Bona R850T (goes by quantum now?) left over from a renovation and don't want it sitting…
Categories: Green Homes

Climate Change Science Lecture: Art, Activism, and Climate Change

Green Homes - Tue, 2023-01-17 14:00
Location: Zoom

Leanne Betasamosake Simpson (Michi Saagiig Nishnaabeg), scholar, writer, artist, and member of Alderville First Nation, will discuss her commitment to art and activism as a means to combat climate change, the origins of her interests, and her hopes for the future.... Read more about Climate Change Science Lecture: Art, Activism, and Climate Change

Categories: Green Homes

roof over existing roof ?

Green Homes 2 - Tue, 2023-01-17 11:41
I am renovating an older house, and recently found out there are high levels of lead paint on the existing standing seam roof. I had originally planned to replace the…
Categories: Green Homes

Wet Rock wool (Zone 5) Air barrier?

Green Homes 2 - Tue, 2023-01-17 11:09
I waited a couple months to put up the poly Iso and now the rockwool is wet, is this a big deal? My roof assembly is = -Asphalt - Graces -…
Categories: Green Homes

AFCI and nicked wires

Green Homes 2 - Tue, 2023-01-17 09:46
Discovered this little gem while replacing a receptacle in a bedroom. Is this the type of fault an AFCI breaker is supposed to protect against, in the case of a…
Categories: Green Homes

Insulating exterior of Zone 4 log cabin

Green Homes 2 - Tue, 2023-01-17 07:52
We're in the process of converting a traditional log cabin built in the 1950s with chinked 6" round silver birch logs from a (zone 4, northern Maine) seasonal camp into…
Categories: Green Homes

GBA customer service

Green Homes 2 - Tue, 2023-01-17 07:15
Not a question, but a comment.  I have had a prime membership for years.Recently got a renewal notice announcing that the annual membership would go to $160 per year (+/-0). …
Categories: Green Homes

Heating system decision time coming… mini-split or efficient boiler

Green Homes 2 - Tue, 2023-01-17 04:23
We are in southern, coastal Maine. We have a 1978 split level. Originally built for electric heat, the previous owner installed an oil fired-FHW boiler. The house is generally well-insulated…
Categories: Green Homes

Green Jobs Are Booming

Green Homes 2 - Tue, 2023-01-17 02:00
But too few employees have sustainability skills to fill them. Here are ways to close the gap.
Categories: Green Homes

Insulating slightly-too-short basement

Green Homes 2 - Mon, 2023-01-16 20:19
My latest dilemma in my retrofit project:I'd like to insulate the basement, and (perhaps more importantly) seal the walls & slab.  The current slab, while dry, has some cracks, and…
Categories: Green Homes

Don’t Know Whether Crawl Space is “Closed” or Not

Green Homes 2 - Mon, 2023-01-16 20:07
Hi everybody!First time posting, but this website has been invaluable for me the past year reading everything, so first of all- thank you all!Last year I bought a home in…
Categories: Green Homes

Sliding Doors – Increase Wall R-value Anyway?

Green Homes 2 - Mon, 2023-01-16 11:55
Hi, the cabin we're building is in Skamania County, WA.  Zone 5B.  Please see drawings (attached, and additional posts).  The attic will be a thick layer of loose fill cellulose. …
Categories: Green Homes

Noxious gases in home, no answers yet

Green Homes 2 - Mon, 2023-01-16 09:38
Looking for some expert advice here on a long tale of woe- since moving back to our house after a renovation we have been getting sick with severe throat and…
Categories: Green Homes

Low VOC fire barrier spay foam

Green Homes 2 - Mon, 2023-01-16 08:40
Hi,Does anyone know if a low VOC fire barrier spray foam can that can be purchased in the large hardware store? This is the sealant wire and plumbing penetration between floors,…
Categories: Green Homes

Advice for insulating a 100+ year old Fieldstone and Stucco Home (Border of Zone 4/5)

Green Homes 2 - Mon, 2023-01-16 07:11
We are in the process of restoring a home originally built in the late 1800’s and updated in the 1920’s after a fire.  The plumbing and HVAC were failing, and…
Categories: Green Homes


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