Green Homes News

Given the existing conditions, what is the best assembly for a warm and dry basement?

Hi, This is my first stop on a journey to discover what the justification is for a Zehnder ERV at up to $35 per CFM when compared to a RenewAire…

Thought folks might be interested in this new (to me) product from SIS panels called "Studulate"https://sispanels.com/studulate/  

The recent GBA article "Passive House Today" referred several times to "low GWP XPS insulation".I've been avoiding XPS in favor of EPS due to XPS much larger greenhouse warming potential…

Other than convenience of construction is there any reason not to have the air / moisture barrier immediately behind the drywall? I realize air sealing around electrical and plumbing penetrations may…

Zone 4/5, slate roof over nickel-gap sheathing. Currently, there is R-30 fiberglass in the attic floor and R-19 fiberglass batts in the roof. But the attic is a conditioned space,…

Hi folks I'm looking for ideas for heating and cooling for a standalone  small  (150 square foot)  outbuilding that will serve as a home office.  This in in western oregon…

I have a 8' x 12' office that is a kit shed in the back yard. I purchased the house and the shed has a mold issue that is from…

I've been reading a lot about spray foam roof assemblies lately and the general underlying assumption is that when properly applied, closed-cell spray foam acts as an adequate vapour barrier. But…

Thought people might be interested in this ...12K & 8K BTU outputsThru the wall/no outside unitMade in Italy sold in US (not sure if available yet)https://olimpiasplendidusa.com/maestro-pro-inverter-12-hp

Location: MCZ 101, Gilbert Room, 26 Oxford St, Cambridge

Join the Department of Organismic and Evolutionary Biology for a special lecture hosted by Andrew Knoll with Ron Milo from the Weizmann Institute of Science, Israel on The Biomass Distribution on Earth and the Impact of Humanity on It.... Read more about The Biomass Distribution on Earth and the Impact of Humanity on It

Hi All,We have a high efficiency HTC mod con natural gas boiler w/ radiant downstairs and flat panel radiators upstairs. It does amazing in our 2200 ft2 Vermont house and…

Location: CGIS South, Room S153, 1730 Cambridge St., Cambridge

In the seminar, Nilanjana Mukherjee will present her research on the Thar Desert in North-Western India. She will argue that the desert has evolved as a frontier zone due to British imperial transactions and stakes in the region and due to the politico-economic exigencies of a specific spatial cartographic logic of the colonial state. This rationale, format, and layout has come to be adopted by the present-day independent India. The desert’s location at the fringes, as though guarding the mainland, strengthens the imagination around its constructed identity as an altogether impervious...

Read more about “Unmapping the Thar: The Desert Reimagined” – with Mittal Institute Bajaj Fellow Nilanjana Mukherjee

I am preparing to build a new home in climate zone 6a. I am going to. E installing 2 inches of exterior gps foam boards. The home has an attached…

Considering the failure of past prefab manufacturers’ ventures, it stands to reason that slow and steady growth is the name of the game

We plan to add a LPG whole-house standby genset.  We've already modified our service panel, poured a concrete pad (under our driveway, 12 feet overhead, open air), and new LP…

The rim joists are currently getting insulated and sealed and we are hoping to insulate the basement as well since this is where the ductwork is and our 1922 wood…

Location: Zoom

The Salata Institute and the Harvard Alumni Association present Harvard Voices on Climate Change, a series featuring Harvard faculty and fellows working on different dimensions of the climate challenge. In this session, Fiamma Straneo, Gordon McKay Professor of Environmental Science and Engineering, and Jerry Mitrovica, Frank B. Baird, Jr. Professor of Science, will explore the pressing issue of sea level rise.... Read more about Harvard Voices on Climate Change: Sea Level Rise

We are trying to settle on a roof assembly for a 36x48’ barn / living space in climate zone 5 (Colorado, 8300’, 70psf snow load). I asked a similar question…