Green Homes News

A-Frame interior roof insulation

Green Homes 2 - Wed, 2022-10-26 21:50
I have an A-Frame house in the Pacific NW. Build in 1960's insulation was not.I need to insulate the inside of the house with something. What is there now new…
Categories: Green Homes

Mortar consistency: hand mixing vs rotating drum mixer

Green Homes 2 - Wed, 2022-10-26 19:17
I need a few outside observers on something I've noticed over a short period.I'm laying a small amount of brick, and sometimes I just mix sand / masonry cement in…
Categories: Green Homes

“Possible condensation risk” in double stud wall assembly

Green Homes 2 - Wed, 2022-10-26 17:22
Hi GBA community,We live in south eastern Ontario, climate zone 6.  We are (re)building an 800 sq. foot addition to our 1890s farmhouse, doing our best to build according to…
Categories: Green Homes

aquastat set temps

Green Homes 2 - Wed, 2022-10-26 14:29
I have a three level 2800 sq foot  house with a four zone hydronic heating system. The boiler is a New Yorker FR-122-W with a Honeywell LB124A aquastat. I have…
Categories: Green Homes

Attic venting

Green Homes 2 - Wed, 2022-10-26 13:31
Should an attic be vented in a 90+ year old, two story cottage? It had minor insulation in the attic and I have to believe it isn’t air sealed. This…
Categories: Green Homes

which rigid insulation to use for exterior roof sheathing

Green Homes 2 - Wed, 2022-10-26 13:26
We're building an unvented roof with rigid insulation on the outside and fiberglass batts on the inside.Would this board be appropriate to use?  We're in zone 3 so code only…
Categories: Green Homes

The Future Is Now: Harvard Takes On the Climate Challenge

Green Homes - Wed, 2022-10-26 13:00
Location: Knafel Center, Harvard Radcliffe Institute, 10 Garden St., Cambridge

The Salata Institute for Climate and Sustainability’s inaugural event will offer an occasion to celebrate Harvard University’s new climate initiative and discuss the inspiring work that lies ahead as we rise to the global climate change challenge.... Read more about The Future Is Now: Harvard Takes On the Climate Challenge

Categories: Green Homes

Garage insulation – attic space options?

Green Homes 2 - Wed, 2022-10-26 11:49
When I moved in my garage was unfinished and basically unusable in our hot CA valley summers. Right now I'm finishing the garage walls with insulation and am wondering how…
Categories: Green Homes

Global Energy Transition Talk

Green Homes - Wed, 2022-10-26 10:15
Location: Zoom & Wexner 102, HKS, 79 JFK St., Cambridge

Ernesto Ciorra, Enel's Chief Innovability Officer, will present "Innovation and the Sustainable Energy Transition: The Role of the Private Sector."... Read more about Global Energy Transition Talk

Categories: Green Homes

Climate, Conflict, and Food Security in Africa

Green Homes - Wed, 2022-10-26 10:00
Location: Online

Simeon Ehui, Regional Director for Sustainable Development for Africa, World Bank; Wanjira Mathai, Managing Director, Africa and Global Partnerships, World Resources Institute; and Dhesigen Naidoo, Climate Adaptation Lead, South Africa Presidential Climate Commission & Senior Research Associate,  Climate Risk and Human Security Programme, Institute for Security Studies Africa will examine the consequences of environmental degradation on food security on the continent and how water and food scarcity impacts and is impacted by local and global conflict.... Read more about Climate, Conflict, and Food Security in Africa

Categories: Green Homes

Framing deep overhangs air-sealed single pitch roof

Green Homes 2 - Wed, 2022-10-26 09:32
I’m building a small studio for my wife. I’m in North Idaho, Zone 5, 40 lb snow load, we also occasionally will see some high 50-60 mph winds, though rarely.…
Categories: Green Homes

ERV Return in Laundry / Mech Room

Green Homes 2 - Wed, 2022-10-26 07:07
I am in the process of an energy retrofit of my 1940s house in CZ5A where I've replaced my gas forced air heating system with a ductless heat pump. I'll…
Categories: Green Homes

Insulation Products for Green Homes

Green Homes 2 - Wed, 2022-10-26 02:00
A list of insulation materials with the lowest impact on occupant health and the environment
Categories: Green Homes

Does unconditioned make up air for a kitchen hood pose any condensation risk?

Green Homes 2 - Wed, 2022-10-26 00:30
https://www.buildingscience.com/documents/insights/bsi-070-first-deal-with-the-manureI've read this article and it makes sense. However, I was wondering if you'd ever get condensation around whatever is carrying the unconditioned air through the wall behind the stove?
Categories: Green Homes

Director’s Series | Obsessions: Fellow Organisms in the Arnold Arboretum

Green Homes - Tue, 2022-10-25 17:00
Location: Weld Hill Research Building, 1300 Centre St., Boston

Arnold Arboretum Director William (Ned) Friedman will present "The Magic and Meaning of a Garden of Trees."... Read more about Director’s Series | Obsessions: Fellow Organisms in the Arnold Arboretum

Categories: Green Homes

Airtight Workshop Ventilation

Green Homes 2 - Tue, 2022-10-25 15:58
Hi All,I am in the process of renovating an existing garage in Seattle, Climate Zone 4C.  The foundation, floor, and walls are all poured concrete.  I have recently re-built the…
Categories: Green Homes

thin film / “solar laminates” for standing seam roof (2022)

Green Homes 2 - Tue, 2022-10-25 14:26
We'll be replacing our roof next year.  8-12 slope, and roughly a 1000sqft unshaded southern exposure (home at ~~45degrees latitude).  We are most likely using standing seam.I see nearly nothing…
Categories: Green Homes

Kim and Judy Davis Dean's Lecture

Green Homes - Tue, 2022-10-25 14:00
Location: Online & Knafel Center, 10 Garden St., Cambridge

"Trauma to Transformation: A Set of Existential Opportunities to Address Environmental Justice and the Climate Crisis" with Mustafa Santiago Ali, the vice president of environmental justice, climate, and community revitalization for the National Wildlife Federation and the founder and CEO of Revitalization Strategies.... Read more about Kim and Judy Davis Dean's Lecture

Categories: Green Homes

Climate Justice Design Lecture

Green Homes - Tue, 2022-10-25 14:00
Location: Zoom

Join the Climate Justice Design Fellowship group for a presentation by Catherine de Almeida.... Read more about Climate Justice Design Lecture

Categories: Green Homes

Choosing a Ducted Air Source Heat Pump

Green Homes 2 - Tue, 2022-10-25 13:19
Hi All Looking for a sanity check on pursuing ducted ASHPs as the sole heat source for an on-going renovation of a 1915 home south of Boston (climate zone 5A). …
Categories: Green Homes

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