Green Homes News

Hot water heat pump and wood stove

Green Homes 2 - Thu, 2023-12-28 10:48
A main concern I see arising from the use of a hot water heat pump is it's cooling effect in winter on the surrounding room it is located in. Could…
Categories: Green Homes

Attic ventilation connected to rain screen *with no overhang roof design* in a cold climate?

Green Homes 2 - Thu, 2023-12-28 07:57
I am already distraught about building a home with no overhangs, please do not explain how incredibly stupid it is - I am aware. Our architect said “in the end…
Categories: Green Homes

Insulating basement after interior waterproofing has been completed(In Toronto)

Green Homes 2 - Wed, 2023-12-27 23:22
Hi everyone, Read a few very helpful answers to questions around insulation and hoping to get some clarity. I had to recently waterproof our basement after finding mould and water issues. Upon…
Categories: Green Homes

Crawlspace encapsulation with reclaimed polyiso

Green Homes 2 - Wed, 2023-12-27 23:07
Hello and thanks to all for an amazing community of helpful folks. I am building a ranch style home over a 4ft Crawlspace in zone 6a. My question pertains to…
Categories: Green Homes

STEEL Structural Insulated Panels

Green Homes 2 - Wed, 2023-12-27 14:26
I work for Structall Building Systems. I just bought a membership here at GBA, I have to say I am surprised by the lack of SIPs in the articals and…
Categories: Green Homes

Are MERV ratings per-pass through filter or cumulative?

Green Homes 2 - Wed, 2023-12-27 12:23
A MERV13 filter removes greater than 50% of particles sized 0.3 to 1.0um per the chart in the article below. If a particle in this range passes the first time…
Categories: Green Homes

Rheem Hybrid Heat Pump Water Heater – 10/3 or 10/2 Romex?

Green Homes 2 - Wed, 2023-12-27 11:56
On the Rheem Hybrid Heat Pump Water Heater (50 Gal). Does it require 10/3 Romex or 10/2 Romex?
Categories: Green Homes

Mitsubishi MXZ3C30NAHZ4U1 – High Pressure Protection

Green Homes 2 - Wed, 2023-12-27 07:56
Note sure if this can be posted here - just looking for advice...I have a Mitsubishi MXZ3C30NAHZ4U1 system installed, with two in celling cassettes (upstairs), and one wall unit (downstairs)…
Categories: Green Homes

Mitsubishi minisplit recovery after power outage

Green Homes 2 - Wed, 2023-12-27 07:41
My wife and I still heat our house with a wood stove, but we have installed a Mitsubishi ductless minisplit in the living room for backup heat when we are…
Categories: Green Homes

Townhome HRV install

Green Homes 2 - Wed, 2023-12-27 07:38
Hi AllI recently upgraded to an all in one washer dryer with heat pump and no longer need the dryer vent in my mechanical room. I’m considering installing a HRV…
Categories: Green Homes

Affordable, High-Performance Design Built on a Microgrid

Green Homes 2 - Wed, 2023-12-27 02:00
The new Fairmount Heights development in Prince George’s County offers a useful template for energy-efficient and context-driven design
Categories: Green Homes

Lateral Soil Pressure with Foam Based Aggregate

Green Homes 2 - Tue, 2023-12-26 18:31
Greetings GBA Community:I am an owner/builder in Vermont looking to detail a concrete free basement floor.  My community does not have code enforcement, so there is no inspector to bounce…
Categories: Green Homes

Attached covered porch beam to porch posts sizing and post spacing

Green Homes 2 - Tue, 2023-12-26 15:54
Hi everyone, new member here. Apologize if this has been answered already but so far I hadn't quite seen it.  I'm in the midst of a full house remodel in…
Categories: Green Homes

Article idea- wall assemblies that work

Green Homes 2 - Tue, 2023-12-26 10:10
I think GBA should write a guide to wall assemblies that work, similar to the cathedral ceiling guide. I feel like that guide is constantly cited and I see a…
Categories: Green Homes

Preheat/ temper incoming air for HRV

Green Homes 2 - Tue, 2023-12-26 08:42
I live in zone 6a and was wondering if it is feasible to incorporate a GAHT system to temper the incoming air for an HRV.  For those unfamiliar with what…
Categories: Green Homes

Why the COP28 Climate Summit Mattered, and What to Watch For in 2024

Green Homes 2 - Tue, 2023-12-26 02:00
The Conversation breaks down the various achievements and shortcomings that came out of the COP28 UN Climate Conference.
Categories: Green Homes

Double stud wall beveled window (outties) casing details?

Green Homes 2 - Mon, 2023-12-25 09:09
Good day folks, I’m currently finalizing the details of my plans for a PGH with my architect. It has an approx 1800sq ft footprint. 30’x60’ main floor plus walkout basement.…
Categories: Green Homes

T-studs vs external insulation

Green Homes 2 - Sun, 2023-12-24 13:57
The best practice in many areas right now seems to be 2*6 walls with external insulation. I imagine it's better bang for the buck than double stud walls and 2*8…
Categories: Green Homes

Used Motor Oil To Discourage Carpenter Bees

Green Homes 2 - Sun, 2023-12-24 09:59
As some higher quality paints and stains get close to $100 a gallon, and carpenter bees doing expensive damage, why not try used motor oil?  I did an experiment on…
Categories: Green Homes

Cathedral Ceiling Unvented with Fluffy Insulation

Green Homes 2 - Sat, 2023-12-23 13:36
Hello,I have a friend who has a challenging roof situation.  Its zone 6 Maine and he is remodeling an old barn into a living space.  He wants to avoid spray…
Categories: Green Homes

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