Green Homes News

We are renovating a home in Redmond WA(climate zone 4C).  The roof rafters are not deep enough to allow for sufficient insulation.  We will do a combination of closed cell…

I have a 2 year old 98% efficient direct vent High Efficiency Trane Furnace. The unit uses a 2 pipe (PVC) intake and exhaust vent up to my attic where…

Hi all! We've finally started our build, and the footings, foundation walls, and waterproofing are all in place. Exterior foam on the walls goes on next week, and we were…

Looking for some incite on insulation techniques for old basement walls for finishing basement.   I under stand the best option for new construction is spray foam and batt.  Next foam…

Working on a renovation project where I am completely rebuilding the floor but am not confident about the best floor assembly. Would be grateful for any advice.Floor assembly (top to…

By considering things like energy-efficient mechanicals, window orientation, and renewable energy sources, homes can be evaluated to meet the energy codes

I am building a home in Colorado at 8500ft zone 5a and am about to install rigid ducts for a Zehnder Q600 ERV.  Zehnder's analysis and a drawing of my…

Location: Virtual

Join us for a live, virtual event to hear from Harvard faculty about the possible implications of the 2024 U.S. elections. Speakers will address U.S. and global climate policy, the outlook for corporate climate action, and more.... Read more about What Does Trump 2.0 Mean for Climate Change?

Recovery Ventilator

I’m in Napa, California, working with local Mits installer.It's two-story house with a rental unit downstairs. Part of the downstairs area is below grade, which helps it stay cooler than…

Location: HUCE Seminar Room 440, 26 Oxford Street, 4th Floor, Cambridge

Please join us for the Fall 2024 Solar Geoengineering Lunchtime Seminar Series: Geopolitics and the Governance of Solar Geoengineering: High Stakes on an Over-Heated Planet... Read more about SGRP Lunchtime Seminar Series: Geopolitics and the Governance of Solar Geoengineering: High Stakes on an Over-Heated Planet

Location: HUCE 429, 26 Oxford Street, 4th Floor, Cambridge

Salata Scholars Seminars are dedicated to climate, sustainability, and environmental work done by Harvard students and fellows. Its goal is to embrace the interdisciplinary nature of sustainability research that can’t be confined to a single Harvard school and help like-minded people connect with each other. Each week, there will be one or two brief talks followed by vegan dinner and discussion.... Read more about Salata Scholars Seminar Series: Challenges to Native Plants in Residential Landscapes

Location: HUCE 429, 26 Oxford Street, 4th Floor, Cambridge

Salata Scholars Seminars are dedicated to climate, sustainability, and environmental work done by Harvard students and fellows. Its goal is to embrace the interdisciplinary nature of sustainability research that can’t be confined to a single Harvard school and help like-minded people connect with each other. Each week, there will be one or two brief talks followed by vegan dinner and discussion.... Read more about Salata Scholars Seminar Series: Challenges to Native Plants in Residential Landscapes

We're building a "pretty good house" in SE Wisconsin, trying to do as much as we can on our own since the educational journey is part of the fun.  We're…

A pilot program in Ipswich, Massachusetts, highlights the potential for more accessible electrification among all consumers

Roof a Sign of a Problem

I'm deeply curious if there's a calculator or theory of calculation that can determine the regulating impact of concrete walls (x" thick) that are connected to footings of a given…

Is it possible to build Joe Lstiburek's double wall [https://buildingscience.com/sites/default/files/migrate/pdf/2014_HighR_Wall_Sheet_02_double_stud.pdf] with Zip system as A/V barrier without moisture control issues in a zone 5 region (Joe usually advises against OSB…