Green Homes News


Green Homes 2 - Thu, 2022-07-07 22:20
I will be building a new house near Tucson. Lately, I've noticed some houses under construction using a synthetic WRB and Formular 250 instead of EPS and 15# felt. A…
Categories: Green Homes

Double stud vs exterior insulation

Green Homes 2 - Thu, 2022-07-07 19:41
Is there a consensus yet on double stud vs exterior insulation? I’d like to build at near passive house levels, R30-R40 effective wall r value. I was initially thinking a…
Categories: Green Homes

Alternative to drywall adhesive for airtight drywall?

Green Homes 2 - Thu, 2022-07-07 19:37
Ready to hang drywall on a 6:12 cathedral ceiling, and it turns out drywall adhesive (Liquid Nails brand, Dap brand, OSI F38, etc) is unobtanium in my area; local building…
Categories: Green Homes

Best method of removing foam insulation

Green Homes 2 - Thu, 2022-07-07 16:07
Is ice blasting the best method of removing foam insulation in the loft?
Categories: Green Homes

Termites/Ants – Climate change

Green Homes 2 - Thu, 2022-07-07 15:46
Should wooden structures being built in areas which do not currently have termite/ant concerns or construction requirements be built with adequate deterrence?Currently termite/ant problems are south of my location in…
Categories: Green Homes

Julia Yang

Green Homes - Thu, 2022-07-07 12:46
Environmental Fellow: 2022-2024
PhD, Materials Science and Engineering, UC Berkeley

Julia Yang is a computational materials scientist working on novel Li-ion battery electrode upcycling processes to reduce toxic leaching into the...

Read more about Julia Yang
Categories: Green Homes

Matthew Tarduno

Green Homes - Thu, 2022-07-07 12:38
Environmental Fellow: 2022-2024
PhD, Agricultural and Resource Economics, UC Berkeley

Matthew Tarduno is an environmental economist studying how individuals' beliefs and biases impact their demand for environmental policy. ...

Read more about Matthew Tarduno
Categories: Green Homes

Matthew Johnson

Green Homes - Thu, 2022-07-07 12:03
Environmental Fellow: 2022-2024
PhD, Energy and Environmental History, Georgetown University

Matthew P. Johnson is an energy and environmental historian whose research area is modern Latin America (with emphasis on Brazil and the Caribbean)....

Read more about Matthew Johnson
Categories: Green Homes

Marissa Childs

Green Homes - Thu, 2022-07-07 12:01
Environmental Fellow: 2022-2024
PhD, Environment and Resources, Stanford University

Marissa Childs researches the health effects of environmental change, focusing on both infectious disease transmission and environmental pollutants....

Read more about Marissa Childs
Categories: Green Homes

Hardie and rain screen details

Green Homes 2 - Thu, 2022-07-07 02:57
I'm working out the trim and siding details on my project and would appreciate any thoughts on these details. It's an insulated out-building.  Tyvek as the WRB. 3/4" PT strips…
Categories: Green Homes

How to Cheat on a Manual J Load Calculation

Green Homes 2 - Thu, 2022-07-07 02:00
Overblown heating and cooling loads lead to oversized HVAC systems and equipment
Categories: Green Homes

Properly flashing brick veneer over rooflines

Green Homes 2 - Wed, 2022-07-06 20:43
Can anyone share a detail for properly flashing brick veneer on a 12:12 pitch that doesn't require step pans? The original flashing specification was taken from this Pro Craft video.,…
Categories: Green Homes

How to handle excess heat from electronics properly

Green Homes 2 - Wed, 2022-07-06 17:14
I'm not sure if this is the right category for this and it's probably going to be a bit long winded, but I want to give as much detail as…
Categories: Green Homes

ERV Duct Size

Green Homes 2 - Wed, 2022-07-06 17:11
Getting ready to install an independently ducted ERV as part of our remodel (3,700sqft), nothing super fancy like a Zehnder, probably this one from Broan question is in regards to…
Categories: Green Homes

Fastening Zip R Sheathing

Green Homes 2 - Wed, 2022-07-06 15:42
Hi, For our exterior home remodel, we have decided to use Zip R with insulation (R9) which is 2 inches thick and have heard that 3.5 or 4 inch nails…
Categories: Green Homes

Any thoughts on this thermo-acoustic heat pump

Green Homes 2 - Wed, 2022-07-06 12:22
Saw this blurb for a new type of heat pump from Blue Hearth Energy. (See for more.) Curious if anyone is familiar with this technology.
Categories: Green Homes

Roof insulation question in Central Florida remodel.

Green Homes 2 - Wed, 2022-07-06 12:07
We are working on a remodel project in Central Florida. At one time someone enclosed a porch with 2" Expanded polystyrene. This does not work well enough for the new…
Categories: Green Homes

Confused about ventilation: balanced vs. exhaust-only vs. ERV vs HRV etc.

Green Homes 2 - Wed, 2022-07-06 09:34
Hello all,I believe I've read most of the article on GBA concerning ventilation and am still somewhat confused about which strategy makes most sense for my project.Project is detached ADU,…
Categories: Green Homes

Installing thick foam above roof sheathing

Green Homes 2 - Wed, 2022-07-06 09:08
Does anyone have practical experience, tips, or suggestions for installing thick rigid foam insulation on a roof?We're about to close in our timberframe in climate zone 7 and my next…
Categories: Green Homes

Question re: NEC 210.63 requirement that HVAC units have an electrical outlet nearby

Green Homes 2 - Wed, 2022-07-06 07:47
Kind of a technical question, but I'd value any input that anybody has.  NEC 210.63 requires an electrical outlet to be installed in an "accessible" location within 25 feet of…
Categories: Green Homes


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