Green Homes News

This is a 2X12 that’s on my roof, the hole is only 2 inches in one direction but 3.75 inches in the other direction and the hole is slightly off…

I have an HVAC design that was created by a firm specializing in that work; the design includes Manual J and S (plus D and T) reports plus the data…

I'm in climate zone 5 with 2" exterior polyiso at R13.5 and R21 Rockwool in the wall cavities. One of my shower walls is on a exterior wall. I'm planning…

Hi all, I'm back at it in my attic. I have some 6" LED "canless recessed" lights that are designed to spring fit into a hole in the ceiling drywall…

Location: 125 Arborway, Boston

Join the festivities at the Arnold Arboretum to learn about the Crabapple and Maple Collections from staff and volunteers, participate in children's activities, and view plants up close with the microscope station.... Read more about Crabapple and Maple Festival

In a previous post about a flattish roof on th 7a 6a HVAC zone board (super cold and moist), I discussed ideas on how to handle a 10-inch total depth…

Hi experts,  I've got a roofing question for y'all.  The front half of my house is an 8/12 pitch roof, that will be covered in regular asphalt shingles.  Most of…

Hello GBA readers,Am in Vermont (CL zone 6A). On a two story house, I need to vent a upstairs bath+ laundry room.  I learned from GBA that this vent outlet…

Hi Folks,After taking much advice from GBA, the website and its community of experts, I managed to reduce carbon emissions by 56% in my 1934 Boston-area cape.My town of Arlington,…

I hired and architect who specializes in green building to design my energy efficient house. We moved in about two months ago. And now I'm afraid the design is completely…

Location: The Memorial Church Sanctuary, One Harvard Yard, Cambridge

New York Times bestselling Author John Green will present "How the World Ends" as part of the 2022-23 William Belden Noble Lecture series.... Read more about William Belden Noble Lecture Series: John Green

What is the most efficient way to heat my bathrooms?I'm currently renovating a 5100 sqft house from 1960 in Narrowsburg, New York. Currently, there are hydronic baseboard radiators fueled by…

Hello,Helping my neighbor, who is now leaning toward a heat pump with central ducted air handler.  She got a proposal with Mitsubishi equipment (SVZ/SUZ).Now she has a second proposal with…

Hello,  I am planning to do a frost protected shallow slab on grade foundation for my home.  I have a plumber friend who swears that slab shield is the way…

Location: Zoom & 100F, Pierce Hall, 29 Oxford St., Cambridge

Kristie Boering, Professor, UC Berkeley, will give a talk (title TBA).... Read more about Atmospheric & Environmental Chemistry Seminar

Based on advice received on a previous question, (https://www.greenbuildingadvisor.com/question/is-panasonic-erv-a-good-ventilation-solution-for-tight-600-sf-studio-apartment) I've decided to go with the Panasonic Intelli Balance 100 ERV (cold climate version) for ventilating a 600 SF second floor…

I'm in a situation where I have to replace my roof, siding, windows and add some interior insulation. My interior insulation retrofit will take a few years as I plan…

Hello. I previously wrote about my cathedral ceiling which was insulated incorrectly. We are in 4a and have an unvented cathedral ceiling with no vents and also no spray foam…

I am building in 3Z ca coast. I only need 3/4”” Eps to stop condensation so I am using 3/4” to stay within Hardi Siding warranty requirements of 1” or…

A rooftop solar company hopes to build a microgrid that will provide residential electricity at a lower cost than the grid