Green Homes News

Fastening Vertical Wood Siding

Green Homes 2 - Thu, 2025-06-12 07:11
Hey All,I know versions of this question have been asked before, and i've spent a good bit of time reading similar questions /responses/recommendations from over the years. I also know…
Categories: Green Homes

Door sill detail for concrete slab on grade

Green Homes 2 - Thu, 2025-06-12 02:33
Problem statement - new construction, slab on grade with R10 slab edge insulation - How to install entry door with extended Endura sillIn the attached detail I'm showing a concept…
Categories: Green Homes

You Don’t Need a Load Calculation

Green Homes 2 - Thu, 2025-06-12 02:00
ACCA Manual J isn't the only method for sizing heating and cooling systems
Categories: Green Homes

Garage to House Cap plates

Green Homes 2 - Wed, 2025-06-11 19:54
We're building a home in SE Wisconsin and trying to make it airtight, energy efficient and well-built.  It has an attached garage which will be a different air space from…
Categories: Green Homes

Wall Assembly and condensation with Zip vs Zip R

Green Homes 2 - Wed, 2025-06-11 16:44
Deciding final wall assembly.Climate zone 5A.Aiming for an R35-38 wall.2 x 6 studs with Rockwool Comfortbatts - R22/23Option for exterior continuous insulation:A. 1"7/16 Zip R6 + 2" Comfortboard 80. -…
Categories: Green Homes

Structural support for outie door

Green Homes 2 - Wed, 2025-06-11 13:52
When installing a door "outie style" (ie, proud of existing wall surface) in order to accommodate future CEI, how does one provide structural support to door sill ? Plan is…
Categories: Green Homes

Venting an attic in a mixed-humid climate

Green Homes 2 - Wed, 2025-06-11 13:42
I've watched a bunch of Joe Lstiburek's lectures on attics and roofs and he always had said that a traditionally vented attic with an air tight ceiling plane and insulation…
Categories: Green Homes

The Fifth Control Layer

Green Homes 2 - Wed, 2025-06-11 02:00
Learning the four control layers have been the backbone of building science basics for a couple decades now, should we be thinking of adding a fifth?
Categories: Green Homes

Spray Foam Gone Bad, ERV Part of Solution?

Green Homes 2 - Tue, 2025-06-10 22:10
I have been dealing with a spray foam nightmare for several years now. I had closed cell foam installed in my crawl space and rim joists by a contractor who…
Categories: Green Homes

Can I apply open cell foam under a vented roof deck?

Green Homes 2 - Tue, 2025-06-10 12:03
I am planning to build a number of homes with some affordable housing groups in my area and have run into a significant expense with the application of closed cell…
Categories: Green Homes

Floor-Ceiling Assembly Over Carport – Zone 3b

Green Homes 2 - Tue, 2025-06-10 11:15
I am designing a home addition in Los Angeles where two bedrooms will sit above a carport which is open on two sides. The floor-ceiling framing consists of 2x12 joists…
Categories: Green Homes

Basement dehumidification – transfer grille into utility room?

Green Homes 2 - Mon, 2025-06-09 13:32
Can a dehumidifier be effective for the whole basement if it’s located inside a drywalled utility room?  Assume the utility door is normally closed.  Would a transfer grille help significantly?We have…
Categories: Green Homes

Attic remodel / sistering rafters

Green Homes 2 - Mon, 2025-06-09 08:49
After early framing help from a capenter, I'm taking on an attic renovation. The carpenter installed knee walls at 35 inches. Because the existing 2x6" collar ties were only halfway…
Categories: Green Homes

Plumbing under frost protected shallow foundations

Green Homes 2 - Mon, 2025-06-09 07:20
Frost-protected shallow foundations (FPSF) are designed to avoid deep footings below the frost line by utilizing insulation to raise the frost depth around the building. This allows for shallower foundations,…
Categories: Green Homes

Considering Biochar’s Potential in Low-Carbon Concrete

Green Homes 2 - Mon, 2025-06-09 02:00
The environmental and social co-benefits of sourcing from unexpected waste streams
Categories: Green Homes

Interior waterproofing wall finish

Green Homes 2 - Sat, 2025-06-07 18:27
Hello all! So I took the plunge and decided to waterproof my basement from the interior before I finish it into a basement apartment. Located in Guelph, Ontario. It already had…
Categories: Green Homes

Ducting dehumidifier where to place intake and exhaust

Green Homes 2 - Sat, 2025-06-07 15:26
With the minisplit now up and running. Humidity runs from 45-55% in the attic and 50-60% in the basement. Considering if i put a dehumidifier in the attic or basement. …
Categories: Green Homes

Flashing in a tiny gap

Green Homes 2 - Fri, 2025-06-06 18:37
I'm a first time poster so I hope this is an appropriate question for your board. I'd really appreciate any help you can offer. I’m hoping to get advice on…
Categories: Green Homes

Alternative method of erecting non-structural wall

Green Homes 2 - Fri, 2025-06-06 18:26
I finished the structural wall of my workshop, and installed the first section of non-structural wall. This design has a 2x4 inner wall that is structural, an outer 2x3 wall…
Categories: Green Homes

Positive Pressure Zehnder System

Green Homes 2 - Fri, 2025-06-06 15:36
Hi, I have a Zehnder Q600 ERV. I never got the whole system commissioned because we installed it during COVID, and the Zehnder rep said they couldn't cross the border...Anywho…
Categories: Green Homes

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