Green Homes News

My home was built in 1994 with 2x6 walls, though I am unsure of the exact R-value of the insulation used within the wall studs. I live in Calgary, Alberta,…

Zone 2Phoenix, AZ Question about soffits—I have a flat roof with trusses that have heels, and the attic will be conditioned from the heel inward. The eave portion of the trusses…

If my roof has radiant barrier sheathing, does it matter whether I use felt or synthetic underlayment? I’m wondering if one might work better with the radiant barrier, especially in…

My master bedroom and bathroom have a vaulted ceiling. The top part of two of the walls exterior side are in the vented unconditioned attic. The attic side of the…

I live in british columbia and have a sealed crawl space with a high efficency natural gas furnace and an ICF foundation. The crawl is heated via the furnace. There…

Hi all, long time reader - first time poster. TIA for those fellow nerds who read the whole thing and follow along, y'all are the real MVP's. I'm looking to evaluate…

I have 3 Mitsubishi MLZ-KY06NA ceiling cassettes. One of the functions listed in the Operating Instructions manual (on pg EN-6) is manual vane control which allows the user to change…

Aged and damaged shingles to be replaced prior to PV install. Discovered decking is only 3/8 plywood, with soft flexy areas and visible Hi/Lo wave on West pitch. 2X rafters…

Designing phase. 1340 sq ft ranch in 5a. Heating load will be around 18k.  Will a centrally located minisplit air handler do the job if supported by a fully ducted…

What is the best way to insulate a dropped soffit in a second floor bedroom?Should I just let the blown-in insulation in the attic fill the cavity? I've had some…

Hello, I’m currently planning the construction of a new house in zone 12, and I’m considering using an air-to-water heat pump with a buffer tank. From what I’ve researched, there…

A remodeler takes a deep dive into these European windows that are unique in function and performance and shares what he's learned

Location: Belfer Library (L369), 79 JFK St., Cambridge

Please join the Belfer Center for a Director's Lunch with Sherri Goodman, Secretary General, International Military Council on Climate & Security; and Senior Fellow, Environmental Change and Security Program and Polar Institute, Wilson Center, as she discusses the critical intersection of climate change and global security. In her talk, "Threat Multiplier: Climate, Military Leadership, and Global Security in a New Era," Goodman will explore how climate change is reshaping military strategies, global security dynamics, and the leadership required to address these challenges.

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Read more about Threat Multiplier: Climate, Military Leadership and Global Security in a New Era

So apparently the LoE coatings look different depending on the lighting… please explain!We have LoE 366 on all the windows on 2 sides (triple glazed units). I noticed the sun…

1. Should there be baffles in the corner of the attic? In the first image, it looks like there are open soffit vents there, but there are no baffles.2. Are…

We moved into our house 18 months ago, which is one of many in the neighborhood with the same floor plan. Each of these homes has a living room floor…

Air-sealing and insulating an old roof on a budget and while maintaining the historic character of the house is a balancing act

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I have an 1850s farmhouse with a field stone foundation topped with granite blocks, and then sills.There are ventillation holes inset into the granite blocks. They had no glass, just…

Hi folks! First time poster and absolute novice here. Not in the industry for my day job, but I want to do the right thing by a 1923 bungalow style home…