Green Homes News

insulation under thickened (load bearing) slab

Green Homes 2 - 3 hours 8 min ago
I'm located in midWest (Zone 4) and I'm planning to install R-10 insulation under vapor barrier, under basement slab. In this application, the perimeter footings and concrete basement walls are…
Categories: Green Homes

Angled Soffit with Metal Soffit/Fascia

Green Homes 2 - 15 hours 1 min ago
I am working on a project with 2.5’ long eaves on the non-gable sides.  The plan is to keep angled soffits and to use vented metal soffit panels and metal…
Categories: Green Homes

Preventing termite passage behind slab perimeter insulation

Green Homes 2 - Fri, 2026-04-17 09:32
I'm helping a neighbor here in MA get insulation installed around the perimeter of her slab. Another neighbor did this and had termites enter her house by passing behind the…
Categories: Green Homes

Unvented Attic

Green Homes 2 - Fri, 2026-04-17 09:30
I am building a new home that will have an unvented or conditioned attic, ERV and dehumidifier.  I am in Houston, Texas, so it's mostly hot and humid.  Framing is…
Categories: Green Homes

Passive House Accelerator: Unlocking Airtightness and Insulation

Green Homes 2 - Fri, 2026-04-17 02:00
A look at materials, installation strategies, and testing methods that make airtightness achievable on real-world projects
Categories: Green Homes

Double Stud wall to ICF frost wall

Green Homes 2 - Thu, 2026-04-16 15:27
Does anybody have an architectural detail for joining an (Element) ICF frost wall to a 12" wide double-stud wall?  The double-stud wall has a 2x6 structural exterior wall with a…
Categories: Green Homes

Heat Loss Calc

Green Homes 2 - Thu, 2026-04-16 07:44
I am doing a DIY house build right now and doing some heat loss calculations. I attempted to use some actual software but there were too many aspects of the…
Categories: Green Homes

home need repair aHR0cHM6Ly93d3cuZ3JlZW5idWlsZGluZ2Fkdmlzb3IuY29t –

Green Homes 2 - Thu, 2026-04-16 07:04
about leaving it exposed to sun, rain and wind?  Is 30 days OK?  90 days?  Night temps could be down to mid 20s or so but generally warmer now in…
Categories: Green Homes

Installing an ERV or HRV

Green Homes 2 - Thu, 2026-04-16 02:00
Achieve optimal indoor air quality through balanced ventilation
Categories: Green Homes

Akos- you are a genius lol re hwhp exhaust

Green Homes 2 - Wed, 2026-04-15 15:59
So I have been wondering what to do with the 55f discharge air off my hot water heat pump heater. I had it piped for the longest time in my…
Categories: Green Homes

Concretta for shower wall?

Green Homes 2 - Wed, 2026-04-15 11:40
Hey all, does anyone have any experience with Concretta FS?  https://meodedpaint.com/product/concretta-fs/I recently toured a renovation project where they used this to coat over existing tile in their showers, the aesthetic…
Categories: Green Homes

Manual J sanity check

Green Homes 2 - Wed, 2026-04-15 10:10
Greetings GBA community. I'm in the late stages of a DIY major expansion and remodel (new second floor, rebuilt first floor) of a 1910 house in Portland OR. Unsatisfied with…
Categories: Green Homes

DIY Blown-In Insulation

Green Homes 2 - Wed, 2026-04-15 07:12
CZ 3A/4A2001 gut renoWe have Knauf EcoBatt R-38 batts in our vented attic, and we plan to put a top layer of blown-in on top to help prevent thermal bridging…
Categories: Green Homes

What an Ecovillage Can Teach Us About Sustainable Communities

Green Homes 2 - Wed, 2026-04-15 02:00
At Missouri’s Dancing Rabbit Ecovillage, natural buildings, shared spaces, and low-impact living offer lessons about sustainability that go beyond energy performance
Categories: Green Homes

Wall thickness calculator – check my math?

Green Homes 2 - Tue, 2026-04-14 13:01
I'm planning to build this summer and out of curiosity I made a quick spreadsheet to find the optimal thickness of my walls - see what you think!My idea was…
Categories: Green Homes

Design-Build Lessons from a 1.8-Million-Square-Foot Campus Neighborhood

Green Homes 2 - Tue, 2026-04-14 02:00
How early planning and design-build coordination protected high-performance goals on a six-building campus project
Categories: Green Homes

MECI Việt Nam

Green Homes 2 - Mon, 2026-04-13 19:18
MECI Việt Nam cung cấp các giải pháp nhà xưởng chuyên nghiệp, bao gồm sản xuất và lắp đặt các sản phẩm như rèm nhựa PVC, cửa cuốn nhanh PVC,…
Categories: Green Homes

Help with detailing steel beam penetrations in the foundation wall.

Green Homes 2 - Mon, 2026-04-13 17:55
Hi AllMy build just started. General wall composition is drywall, 2"x6" studs, 1/2" Zip, 3" Rockwool, rainscreen, siding (brick, steel and fiber cement at different places). At the top of…
Categories: Green Homes

Insulation for Old Flat Tile Roof with Cathedral Ceiling

Green Homes 2 - Mon, 2026-04-13 13:23
We have a 1961 Midcentury Modern home with a combination flat clay tile gable and flat roof. We just replaced the old EPDM with PVC on the flat roof and…
Categories: Green Homes

Q&A Spotlight: Timber Frame Wood Choices—What Works, What Doesn’t, and Why

Green Homes 2 - Mon, 2026-04-13 02:00
A discussion on wood species, moisture, and detailing for long-lasting outdoor timber-frame structures
Categories: Green Homes

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