Green Homes News

Challenges with heat distribution between levels

Green Homes 2 - 5 hours 54 min ago
We’re struggling in our current house with heat.  It’s a 19th century farmhouse that I rebuilt to the best of my amateur ability.If we heat the lower level to 70…
Categories: Green Homes

Any experience with Micro-Air EasyStart?

Green Homes 2 - 11 hours 4 min ago
After uploading the data plate images for the compressor (Trane XB13), air handler, interface module, ERV, and thermostat, Gemini AI said that it was good equipment and should produce heat…
Categories: Green Homes

Rim Joists with two layers of rigid EPS foam

Green Homes 2 - 12 hours 13 min ago
Hi,   I'm insulating the rim joists in my 125 year old home. There is currently nothing but wood there (and an anti mold spray from a recent remediation). Due to…
Categories: Green Homes

Attic Ventilation and HVAC

Green Homes 2 - 18 hours 23 min ago
My HVAC contractor installed HVAC in the attic along with a dehumidifier. We have a ridge vent along with soffit vents. Attic is air sealed with R60 insulation. We will…
Categories: Green Homes

The Cold North: How “green” is new construction versus rehab of old houses?

Green Homes 2 - 19 hours 2 min ago
It seems to come up all the time as freezing temps dominate our northern winters.Is energy efficient new construction really “green” compared to deep energy retrofits to old housing stock?…
Categories: Green Homes

Experience with North American tilt and turn window suppliers?

Green Homes 2 - 21 hours 47 min ago
Shopping for tilt and turn windows (Zone 5 climate) and found Seemray.com offering fiberglass frames with German hardware. Anyone here used them or similar NA-made European style windows? Curious about…
Categories: Green Homes

Oversizing HRVs and ERVs: How Much Energy Can It Save?

Green Homes 2 - 21 hours 49 min ago
Oversizing HRVs and ERVs may improve IAQ, comfort, and energy performance—and the math often supports the investment.
Categories: Green Homes

Climate Zone 5 Manual J Calc Question

Green Homes 2 - Thu, 2026-01-22 20:55
Our project is a chainsaw retrofit in Climate Zone 5. We cut off the eaves and the building is air sealed from the sill to the ridge. We are installing…
Categories: Green Homes

Manual J Climate Zone 5 All Mitsubishi Hyper Heat Units

Green Homes 2 - Thu, 2026-01-22 19:32
Our project is a chainsaw retrofit in Climate Zone 5. We cut off the eaves and the building is air sealed from the sill to the ridge. We are installing…
Categories: Green Homes

Optimizing hot water recirculation pump

Green Homes 2 - Thu, 2026-01-22 10:19
I have a gas water heater and a Grundfos Comfort TDT hot water recirculation pump installed. It operates based on time and temperature control.My thought was to set it to…
Categories: Green Homes

Demystifying Dehumidification Loads

Green Homes 2 - Thu, 2026-01-22 02:00
Why modern air conditioners struggle with dehumidification
Categories: Green Homes

Home Tightness

Green Homes 2 - Wed, 2026-01-21 19:20
Hello, First, I would like to thank this group/ community for addressing my prior questions. I learned a lot.  We taped the sheating for the house with acyrylic tape, installed tyvek…
Categories: Green Homes

Concrete free slab “slabless slab “

Green Homes 2 - Wed, 2026-01-21 15:13
I have a question regarding the concrete free slab design.  I am currently working with an engineer ( I'm sure he has the answer, but am curious).we are utilizing the…
Categories: Green Homes

Building a 600 sq ft ADU on Piers in Rhode Island Zone 5 – Plumbing/Insulation

Green Homes 2 - Wed, 2026-01-21 06:03
We are designing and building a 600 sq ft 1 br dwelling unit on piers. Goal is to build affordably, energy efficiently, meet code, avoid maintenance disasters. We have worries…
Categories: Green Homes

Wildfire Resilience: Slab-to-Wall Connection

Green Homes 2 - Wed, 2026-01-21 02:00
A step-by-step look at how a wildfire-rebuild project achieved airtight, thermally broken, moisture-safe, and ignition-resistant detailing at the slab-to-wall transition
Categories: Green Homes

Sheathing & siding flashing details for slab-on-grade garage

Green Homes 2 - Tue, 2026-01-20 19:52
I am building a garage with an office for my own use here in Greenville, SC. (plans attached) Here are a few details. I'm planning on zip sheathing, furring strips…
Categories: Green Homes

Modern Mill Now Offers Its Rice Hull–Based ACRE Siding and Trim in Factory-Finished Options

Green Homes 2 - Tue, 2026-01-20 02:00
New pre-finished options should help builders streamline adoption and installation of the bio-based wood alternative
Categories: Green Homes

Chimney Removal Advice

Green Homes 2 - Mon, 2026-01-19 21:55
I have a chimney that runs through the middle of my house. The chimney above the roofline is not only letting water into my house - even after adding caps…
Categories: Green Homes

Use Budget on a Hydronic Heating System or Boring fundamentals

Green Homes 2 - Mon, 2026-01-19 19:53
Hello all, I have been reading a bunch and soaking up all your information and avid home builder advice.  I think people here are a step above DIY.  I will be…
Categories: Green Homes

Sealed Suspended Floor – Design Check

Green Homes 2 - Mon, 2026-01-19 13:27
Hi All – wanted to run this design past the experts here, please see the attached cross section for general design. This is a “sealed” suspended floor, that covers a…
Categories: Green Homes

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