Green Homes News

Raised floor assembly with plumbing lines question

Green Homes 2 - 7 hours 42 min ago
In the process of designing a mater bedroom/bath addition that will be elevated on a col. and beam system (due to grades on site). I believe I have proper air…
Categories: Green Homes

Cellulose Insulation

Green Homes 2 - 8 hours 1 min ago
I have 14 inches of cellulose insulation in the attic. We are adding a second level. Should we remove the cellulose insulation ?
Categories: Green Homes

Do I need an ERV?

Green Homes 2 - 8 hours 57 min ago
I am looking for some guidance if I should put in an ERV. New construction home in climate zone 5A. 2 stories and a basement. About 4600 sqft above ground…
Categories: Green Homes

Can someone please tell me am I right or no, about Vapor barriers

Green Homes 2 - 9 hours 48 min ago
Hello everyone, recently I read about Vapor retarders in ventilated attic, ventilated crawlspace, ventilated cathedral roof, and I understand that in cold climate I can place the Vapor barrier near…
Categories: Green Homes

HVAC in attic proper insulation

Green Homes 2 - 10 hours 45 min ago
The attic has an HVAC system in the attic, There is insulation surrounding the unit and all throughout the floor boards in the atticThe ceiling in the attic is not…
Categories: Green Homes

Built Buildings Lab Promotes the Embodied Values of Existing Buildings

Green Homes 2 - 16 hours 41 min ago
Co-founders Lori Ferriss and Billie Faircloth discuss their non-profit’s mission with GBA
Categories: Green Homes

foamboard air barrier

Green Homes 2 - Mon, 2025-07-21 18:25
can I use 1/2" xps as an interior air barrier before framing wall. will this be vapor open enough. I can also use eps but only stocked in 3/4" near…
Categories: Green Homes

Rain screen + flat sheet corten metal exposed fasteners

Green Homes 2 - Mon, 2025-07-21 13:10
Hello there, I am using the zip system, with 2inch rockwool,  3/4 inch firing strips for rain screen, and a perforated aluminum bug screen (attached to sheathing behind rockwool on top…
Categories: Green Homes

Monday 7/21/25 Still having issue with replying to the Q and A (post function)

Green Homes 2 - Mon, 2025-07-21 06:51
Other members, seem to be able to respond as normal the last few days to the Q and A forum. I am able to post a question and make edit…
Categories: Green Homes

Fight House Fires Through Design

Green Homes 2 - Mon, 2025-07-21 02:00
When it comes to making a home more fire-safe, materials matter. Get expert design tips from a firefighter who's also a residential builder.
Categories: Green Homes

Should I be concerned about spray foam insulation on bathroom exhaust vent?

Green Homes 2 - Sun, 2025-07-20 18:19
Hi everyone,I just had our attic insulted with closed cell foam. By all appearances, they did a good job, but I did notice a lot of foam hit the bathroom…
Categories: Green Homes

PFAS in Kynar / PVDF roof coatings?

Green Homes 2 - Sun, 2025-07-20 13:17
We're currently looking at replacing our 26yo roof with a metal roof, and my biggest question (aside from being able to afford it) is whether there are PFAS chemicals in…
Categories: Green Homes

Reply to “Solar attic fan okay, just this once?”

Green Homes 2 - Sun, 2025-07-20 11:57
I'd feel a lot better if it was balanced ventilation with both supply and exhaust. I don't see any reason not to ventilate that space so long as it's not…
Categories: Green Homes

Need help on building science mistake. Need opinion on corrective action

Green Homes 2 - Sun, 2025-07-20 09:18
I am moving into my new build home. I did 100% closed cell foam R7.3 per inch throughout basement (2"), 1st, 2nd (4") and unvented attic (6")Climate zone 4Outside 3/4…
Categories: Green Homes

Joist bay insulation, vapour barrier and condensation

Green Homes 2 - Sun, 2025-07-20 06:39
I posted about this a while back but want to make absolutely sure I understood correctly...Zone 6, 1 inch silverboard xs (micro perforated) on the exterior, 1-1/8" rimboard, 2 inch…
Categories: Green Homes

Reply to – Z trim on standing seam metal roof questions

Green Homes 2 - Sun, 2025-07-20 03:37
They both look like good details to me. Either should work fine. I would choose the first because the Z closure acts like a continuous cleat, which I prefer over…
Categories: Green Homes

Z trim on standing seam metal roof questions

Green Homes 2 - Sat, 2025-07-19 20:50
So, I am finishing up my first standing seam (1 3/4 snap lock) roof.The large main roof worked out great.I have a small shed style roof that I just finished…
Categories: Green Homes

Solar attic fan okay, just this once?

Green Homes 2 - Sat, 2025-07-19 17:57
I am fully on board that attic fans (even solar powered ones) are a net negative in the vast majority of homes, since they will likely negatively pressurize the attic…
Categories: Green Homes

HVAC Maintenance: Proper way to check/add refrigerant

Green Homes 2 - Sat, 2025-07-19 14:29
Reposting due to tech glitch of no responses incoming/outgoing..Im seeking help on how to approach an HVAC company in terms of maintenance that I don’t have the technical background to…
Categories: Green Homes

Is a vented roof in zone 4 marine risky?

Green Homes 2 - Sat, 2025-07-19 09:59
Hi all, I came across a couple of studies, that seems to show that ventilating a roof in zone 4 marine climate can create/exacerbate moisture problems even when properly constructed…
Categories: Green Homes

Pages

RMC facebook RMC twitter
Scroll to Top