Green Homes News

Drain pipes/radon

Green Homes 2 - Wed, 2025-10-29 19:22
My contractor uses form-a-drain - thoughts on this in a high radon zone? is it better to have a separate radon pipe? I’m not sure how I feel about form-a-drain…
Categories: Green Homes

Moisture between foam when installing

Green Homes 2 - Wed, 2025-10-29 18:49
I’m finally installing my exterior foam - 2x6 wall7/16 osbtyvek commercial wrapdrain wrap2 layers of 1” xps and one 1/2” layer of xps for r-13, taping outermost seam1x4 furring stripsin…
Categories: Green Homes

3 1/2 year old Mitsubishi minisplit head corrosion

Green Homes 2 - Wed, 2025-10-29 17:29
Hello,What’s going on with my 3 1/2 year old Mitsubishi MSZ-FS09NA head install? This corrosion can’t be normal. I purchased Mitsubishi over Fujitsu to avoid this exact scenario. There is…
Categories: Green Homes

Whole-house humidifier sharing duct work with whole-house dehumidifier? (Z5)

Green Homes 2 - Wed, 2025-10-29 14:02
Last winter I opted to use a console type humidifier to boost the indoor humidity of our well-insulated and carefully air-sealed new home (apparently the wife and I don't take…
Categories: Green Homes

Laminated Glass, Part 2

Green Homes 2 - Wed, 2025-10-29 02:00
Learn when safety glass is required, how to identify it, and the testing process
Categories: Green Homes

Bathroom waterproofing and materials

Green Homes 2 - Tue, 2025-10-28 19:16
Hey hope everyone is doing well. I’m renovating a new bathroom 5x8 in the second floor. Everything down to the studs. I plan on using cement board for a 32x60…
Categories: Green Homes

Budget insulation for retrofit 2×4 knee walls in an unconditioned space

Green Homes 2 - Tue, 2025-10-28 19:04
Hello, my name is Alex from Kansas City, MO.   I've read many of the knee wall / devil's triangle posts on here but was left a little unsure of the…
Categories: Green Homes

Quality of plywood install before applying self adhered WRB

Green Homes 2 - Tue, 2025-10-28 18:21
Some work is being done on my house that includes installing plywood sheathing and then a self adhered WRB. (Adhero 1000) I noticed that the plywood corners don’t meet very well…
Categories: Green Homes

Beating a dead horse with insulating rim joists

Green Homes 2 - Tue, 2025-10-28 16:53
Read and read and read about air sealing and insulating this area but want to get another opinion. I’m in climate zone 5 in northeast Ohio. I have an early…
Categories: Green Homes

Ledger reinforcement options for roof overhang

Green Homes 2 - Tue, 2025-10-28 11:10
I have an overhang over the rear of my garage that was built by the previous owner many decades ago based on pictures. There are a lot of things about…
Categories: Green Homes

Double stud wall framing

Green Homes 2 - Tue, 2025-10-28 10:22
I am a student, designing an ADU. My teammate and I decided to use double stud walls in our design to increase the R-Value in the walls. How do the…
Categories: Green Homes

Home Green House?

Green Homes 2 - Tue, 2025-10-28 07:34
Categories: Green Homes

Form Doesn’t Follow Function—It Follows Fuel

Green Homes 2 - Tue, 2025-10-28 02:00
How architecture evolved with energy sources, from wood to electricity
Categories: Green Homes

Evaluating HVAC Filters

Green Homes 2 - Mon, 2025-10-27 22:51
My fairly tight house was set up so that when the kitchen exhaust hood is turned on, a damper opens and lets in unfiltered, unconditioned ouside air.  The interior grill…
Categories: Green Homes

Can caulking be used to air seal electrical boxes?

Green Homes 2 - Mon, 2025-10-27 12:17
Hi all, Can you use regular caulking such as Sashco Big Stretch or non fireblock rated sprayfoam, to air seal electrical boxes? Obviously care must be taken to keep too much…
Categories: Green Homes

One of Five Cathedral Ceilings That Work By Martin Holladay

Green Homes 2 - Mon, 2025-10-27 09:42
Wondering if air and vapor tight air vent baffles below roof deck and foil faced iso at bottom with fiberglass in between might create a space that cant dry in…
Categories: Green Homes

Fixing thermal bridging in old homes

Green Homes 2 - Mon, 2025-10-27 05:54
The discussion on thermal bridging focuses heavily on new construction or reclassifying the outside walls. I have been unable to find any information about using sheet insulation inside old houses…
Categories: Green Homes

Unexpected Consequences: A House That Needs No Heat in Minnesota?

Green Homes 2 - Mon, 2025-10-27 02:00
One homeowner’s journey in high performance – part 1
Categories: Green Homes

Exhaust fan switch – Continuous repeat cycle timer

Green Homes 2 - Sun, 2025-10-26 10:08
Howdy. I am installing a Panasonic vent fan with a DC motor that I want to run on a continuous on/off repeat cycle. 30 minutes on then 30 minutes off…
Categories: Green Homes

Feedback on Window Detail – Corten Steel Extrusion in Climate Zone

Green Homes 2 - Sat, 2025-10-25 21:11
I’m currently designing a proposal for a home in Portland, Maine (Climate Zone 6). The window detail uses Corten steel as the exterior material, which provides an overhang for summer…
Categories: Green Homes

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