Green Homes News

After consulting with several roofers/mold remediation/insulation contractors, I'm at a loss on what to do with my attic. I live in Zone 5A. When I bought the house five years…

Considerations when choosing between microinverters and string inverters with optimizers for a residential solar power system

Hi all, trying to understand the importance of a fully detailed drywall air barrier on a cathedral ceiling that has exterior rigid foam insulation. I've read lots of GBA articles and…

A comment by Walta got me thinking about our attic space and its leaky kneewall glory.I would like to explore this a little, in context of conditioning the attic and…

Hey hope everyone is doing well. About 6 years ago I replaced my roof on a 2 car detached garage. One side of the garage now has a leak that…

Hello,I've gone back and forth through several forums and I still can't decide 100% on a solution, so I thought I'd pose a question for my particular scenario. I appreciate…

I am building a new house and want to know the best way to keep the basement well conditioned. --Northern Michigan zone 6a--1200 sq ft foot print (30x40), 2 story with…

2-story SOG house in climate zone 4 (BC Canada).The downstairs is finished (R-13 fibreglass batt insulation in walls and drywall) and laminate flooring. Foundation is exposed ~10” above grade. I…

I am building a house this spring in Ottawa, ON Canada climate zone 6. I am trying to finalize my above grade wall assembly but am a little confused with…

We've progressed through our renovation and am at the stage of deciding on a siding to go over our prosoco wrb.  A few issues have led us to believe that…

Hi, I'm planning to replace my roof shingles (and 57 year old 3/8th decking) this spring. We are also planning for a future solar PV installation.  Our roofline and orientation are not…

I am just about to make my vented attic, unvented, i.e. raise the thermal barrier to the roof.  I plan to use 2” of closed cell spray foam next to…

https://www.greenbuildingadvisor.com/green-homesPrioritize Sustainability by Choosing Online Games 

Good afternoon all... I have a nice critter hole in my plastic ridge vent. Please see attached image. Thankfully caught it before any water damage, and the critter situation is…

We are looking to replace our windows and I am wondering how to understand the solar heat gain numbers in a real life way? I want windows whose coatings  maintain…

Hi all, I have a specific remodel case where it's been determined that closed cell spray foam will be the most cost effective solution. In researching brands, it seems like…

Hello,  I've been away from this forum for quite a few years.  I used to lurk a lot back when I was still a home builder.  I built numerous ICF…

Hi all,Looking to install continuous insulation with no cavity insulation on a tiny residential home in Zone 6. My question is, do I need a vapor barrier between the insulation…

Location: HUCE 440, MCZ, 26 Oxford St., CambridgeThe Harvard Energy Journal Club (HEJC) is open to Harvard and MIT students and postdocs only. A technical background is not needed. The Harvard Energy Journal Club (HEJC) is open to Harvard and MIT students and postdocs only. A technical background is not needed.
Contact: elizakatespear@g.harvard.edu

I haven't seen this mentioned here yet and figured others might be interested.In a nutshell, the ICC board of directors voted to strip various provisions from the 2024 IECC at…