Green Homes News

Hi, I've been reading and learning a lot, and have a few clarifying questions as I embark on an insulation effort on our 1922 craftsman home, located in northern CO,…

Hi I am in the same boat. I am based in Edmonton, Alberta: Climate zone 4A.I have the same type of insulated rim board and the builder didnt insulated the…

One section of our remodel will have vertical cedar T&G.  Due to window heights I'd prefer to not come out past 1 3/8 - The proud measurement of the windows…

One of the ironies of greenbuilding is that living roof-gardens require quite a bit of structure. And to meet code requires, usually, quite a bit of concrete.We are in the…

Building codes require residential duct systems to be tested for duct leakage

An explanation of the different types of ductless minisplit heads and their characteristics, requirements, pros and cons, and average costs

Hey All,Seems a bit of a grey area around rebates for HPWH and Heat Pump HVAC installs on new construction. I see on the IRS website that the rebates do…

Hello! I am a (volunteer) trustee of a condo association. Our building is a historic school, originally built 1898. It was converted to condos in 1987. Climate zone 5A (Massachusetts).Our…

Hey everyone, This site has been so helpful for my strange reno/build Qs.So here is another!We have a bit of a strange floor assembly. It's a 1950s classic split level. Subfloors…

Location: GSD, Gund Hall Piper Auditorium, 42-48 Quincy St, Cambridge

The exhibition Changing Climates explores how built environments can be transformed into urban ecologies. Producing an enhanced micro-climate, each of these ecologies has the capacity to augment the resilience of the urban condition under the challenges of the climate crisis.... Read more about Bas Smets, “Changing Climates”

Hey All,Our windows are on there way so I've been reviewing the plan details for them.  Does it make sense that the window buck and thus the window's nail flange…

We’re building a house and the plans call for a screened in porch over a concrete slab. The design calls for full foundation wall heights with no basement access—the void…

Hi GBA folks,I'm about to start applying 2 layers of 1.5" Comfortboard 80 exterior insulation to the Zip sheathing of our house build. All sheathing seams have been liquid flashed,…

Hello, my partner and I are looking to install a ductless? ERV to help with ventilation and our house is old and very small and does not lend itself to…

Using the 2021 IRC's prescriptive table of R-values or U-factor calculations are two ways to satisfy energy conservation codes

Location: Harvard Business School, Aldrich Hall, Classroom 010, Boston

Join the Salata Institute and Harvard Business School Business and Environment Initiative for a book talk featuring businessman and philanthropist André Hoffmann and journalist Peter Vanham. André Hoffmann is Vice-Chairman of Roche, one of the world’s largest pharmaceutical and healthcare companies. Roche was founded by the Hoffmann family in 1896. Peter Vanham is Editorial Director, Leadership at Fortune. ... Read more about The New Nature of Business: The Path to Prosperity and Sustainability with André Hoffmann and Peter Vanham 

Please see the attached image. Zone 5, high desert, with termites.I have a slab on grade with edge insulation and a parged coating. Above I'll have a termite shield, then…

Hello all, I'm Daniel. Here is my dilemma, I am trying to figure out a way to insulate and/or encapsulate a very shallow vented crawlspace under an older home. I'm…

Location: Northern N.MAny references for foundation performance with vs. without below slab insulation in an area where we are much more concerned about cooling rather than heating loads?  Small home…