Green Homes News

Sylvester Baxter Lecture

Green Homes - Thu, 2023-02-16 16:30
Location: Gund Hall Piper Auditorium, GSD, 48 Quincy St., Cambridge

Kofi Boone, Joseph D. Moore Distinguished Professor and University Faculty Scholar at NC State University, will present "Recognition, Reconciliation, Reparation."... Read more about Sylvester Baxter Lecture

Categories: Green Homes

Slab – Finish Quality

Green Homes 2 - Thu, 2023-02-16 15:55
Hello All,Designing a slab-on-grade residential house in Idaho.  Are plan is to use the concrete slab, with a 600 or so polish, as the finished floor.  I found some info.…
Categories: Green Homes

HRV/ERV expertise in MD-DC-VA

Green Homes 2 - Thu, 2023-02-16 14:21
In 2014 (before we bought this house) a HRV/ERV was installed in the attic. But, it was installed wrong since the exhaust and air intake are located inside the attic.The…
Categories: Green Homes

Microbial Sciences Initiative Seminar

Green Homes - Thu, 2023-02-16 14:00
Location: Room 105, William James Hall, 33 Kirkland St., Cambridge

Andee Wallace, CEO and co-founder of Robigo, will present "Engineering Microbes for a More Sustainable Future in Agriculture."... Read more about Microbial Sciences Initiative Seminar

Categories: Green Homes

Insulating HVAC closet

Green Homes 2 - Thu, 2023-02-16 13:09
My one story house has the air handler in a closet (with the hot water heater) in the center of the house.   The closet interior has has no trim (baseboards)…
Categories: Green Homes

Zone 7 attached garage – flash and batt versus only batt in roof

Green Homes 2 - Thu, 2023-02-16 13:02
Climate Zone 7.  Attached unheated garage.  New construction.  Low slope roof.Question - will condensation be a problem with my proposed roof stack?Constraints* All insulation needs to fit inside 12" deep…
Categories: Green Homes

Rainscreen details for innie windows and garage door openings with stucco siding?

Green Homes 2 - Thu, 2023-02-16 12:06
I am planning an addition onto an existing stucco clad house with "innie" windows, recessed ~2" in climate zone 9B (NorCal). I'd like to install a rainscreen behind the stucco…
Categories: Green Homes

How long can PEX be exposed to sunlight through a window?

Green Homes 2 - Thu, 2023-02-16 10:54
I had my plumbing done a year ago but during Covid I had to wait 7 months for my windowsmy plumbing was done before my windows so the plumbing hasn’t…
Categories: Green Homes

Too-Thin Exterior Foam Behind Brick: Request Recommendations for Re-Insulating & Air Sealing from the Interior

Green Homes 2 - Thu, 2023-02-16 10:10
Summary: My home is in CZ5A near Detroit. It was completely upgraded with new windows and re-bricked about 15 years ago.  Unfortunately the exterior foam is only 1 inch EPS…
Categories: Green Homes

roof kitchen exhaust

Green Homes 2 - Thu, 2023-02-16 10:03
Hi All,Currently the building I have has this small kitchen exhaust outlet connected to like 8 units. Attached pic from my roof security camera. Some times the tenants complain that…
Categories: Green Homes

VOC Concerns – 3M 90 Spray Adhesive

Green Homes 2 - Thu, 2023-02-16 08:57
Hello -Our contractor used 3M 90 Spray Adhesive to put down some peel and stick vinyl tiles in our basement bathroom. The product is <55 % VOC. Normally I wouldn't be…
Categories: Green Homes

How is Zip-R safe in cold climates?

Green Homes 2 - Thu, 2023-02-16 05:27
I assume I'm missing something, as I'm seeing Zip-R chosen by experienced and reputable builders. But it sounds like a dangerous assembly to me from a water perspective, and I'd…
Categories: Green Homes

Staggered double stud wall on 2×8 plates

Green Homes 2 - Thu, 2023-02-16 04:59
Is it worth the trouble to do a double stud 2x4 wall staggered on a 7.25" or even a 7.5 " plate vs a 2x8 wall? With either plate, is the…
Categories: Green Homes

Lloyd Alter on Upfront Carbon Emissions

Green Homes 2 - Thu, 2023-02-16 02:00
A green building reporter joins GBA and introduces his new beat
Categories: Green Homes

Stacked Minisplit Outdoor Unit Freeze Up Risk in Cold Climates

Green Homes 2 - Wed, 2023-02-15 21:38
I have some limitations on placement of two outdoor units for ducted mini-splits. I'm planning to place them one above the other on a stacked stand.However, I'm located in climate…
Categories: Green Homes

HVAC – How many pipes off the plenum?

Green Homes 2 - Wed, 2023-02-15 20:21
I changed my furnace for 2 reasons 1. Previous unit was undersized and 2. The duct design was far from optimal. I'll state now that I'm just a regular home owner…
Categories: Green Homes

Is dumping condensate into a sump pump basin really a good idea?

Green Homes 2 - Wed, 2023-02-15 17:14
Hello all,My 1966 home's crawlspace (CZ2) was encapsulated and a dehumidifier was installed just prior to my ownership in 2015. Two weeks ago I replaced the dehumidifier which was originally…
Categories: Green Homes

.5/12 Roof Assembly

Green Homes 2 - Wed, 2023-02-15 14:31
I am going to build a 1200 sq.ft. home with a raised heel .5/12 monotruss. This will allow me to either make an unvented assembly with spray foam flash and…
Categories: Green Homes

CLT replaces a concrete slab

Green Homes 2 - Wed, 2023-02-15 14:15
I'm soliciting input for a potential project in southern Arizona. The client has approached me about exorbitant costs related to concrete slabs. Although I specialize in SIPs and CLT, I've…
Categories: Green Homes

Commercial Building – What would you improve?

Green Homes 2 - Wed, 2023-02-15 14:03
We recently acquired a commercial building in CZ4 that is half-occupied by my wife's business.  While it seems like an overall good investment it is not helping our cash-flow, so…
Categories: Green Homes


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