Green Homes News

I'd love some help resolving an issue for our new build in Coastal Maine, Climate zone 6a. It's a 2 story 20x40 2bed home 1600sqft total. The floor system between…

Inhaled particulates from environmental pollutants damage the human immune system to a surprising degree

Hello,I'm in Northern Minnesota, so climate zone 7. I'm taking GB's advice and going with R30 exterior roof deck insulation for the cathedral ceiling in my cabin. Will probably use…

Hello,Location - Ottawa, Ontario, CanadaI am starting a new build shortly and require continuous exterior insulation based on our heating choice of a interior air handler and heat pump. I…

First time caller, long time listener here.  I'm working on retrofitting my two story saltbox and had some questions about my wall assembly set up and if it passes muster. …

I will be building a carriage style house/barn in Maine this summer.  See attached photo for the vision (not my photo). Instead of garage door I will have a barn…

I’m building a small multi unit residential building with individual water heaters. I want to go all electric and prefer tankless for space and efficiency purposes. Unfortunately with the small…

Location: G115, Maxwell Dworkin, 33 Oxford St, Cambridge

"Interpreting the Seasonality of Atmospheric Methane" with Dr. James D. East, Jacob Lab, Harvard.

I have a covered patio that I plan on screening in with a 30-inch knee wall. The patio slopes away from the house by about 3.5 inches. Are there any…

Location: HUCE Seminar Room 440, 26 Oxford St., Cambridge

HLS Professor Jody Freeman will discuss the EPA’s greenhouse gas rules for the auto, power, and oil and gas sectors and the SEC’s final rule on climate-related financial risk. Professor Freeman will also explore if these rules were weaker than expected and what lies ahead in the courts.... Read more about Harvard Speaks on Climate Change: Federal Climate Rules – A Status Report

We’re in the process of putting together plans for a new build in CZ 4. Our air sealing goal is to be under 1.0 ACH50. We tested a heat pump…

I have a 1973 cape cod in New Hampshire with a finished second floor. The roof is at the end of it's life, and in order to add more space…

From missing flashing details to incomplete roof venting, understanding how things go wrong is the first step to getting them right

It seems that the airtight drywall approach is getting popular for modular houses because they get build from inside out so there is easy access to the back side of…

HELP! We have a ton of condensation in our roof and penicillin (mold) is starting to grow. Insulation is wet in some areas of the house. We bought the house 1.5…

I am looking for a process/math check on the dimensions needed to sort out window placement on a south side wall. Background:House is a rectangle with 9/12 pitch roof18” raised heel…

Hi All, We're building a 4400 sq ft house in CT and awaiting HVAC proposals from a few vendors. Builder's preferred vendor is proposing two Mitsu heat pumps + 2 ERVs,…

Does adding returns to each bedroom make sense in my case?We currently have one central return in the hallway that is hilariously undersized (14x14). It returns air through the attic…

I'm looking at under slab insulation options for my workshop. The most attractive right now is from a place called instapanel, which sells "new, reclaimed" urethane panels. Cheaper than type…

I'd love some advice from the experts here. I am working on a remodel and we're planning to convert my attic into an unvented attic with open cell foam on…