Green Homes News

Flat Roof Scupper Q – 2018 IRC R903.4.1

Green Homes 2 - Fri, 2025-03-07 21:58
Hey all. Just got told by County rep that she wants,  SHEET #A3.0: Call out the size of each roof drain and scupper. Design shall be based on 6” rainfall in…
Categories: Green Homes

Class I vapor barrier-how impermeable is it to odors generated from below?

Green Homes 2 - Fri, 2025-03-07 12:10
I'm asking this question in relation to the "cat urine" smell problem reported in some crawlspace encapsulations.  Assuming a Class I VB is installed over the soil and all the…
Categories: Green Homes

Vapor barrier over interior CMU piers in a crawlspace-what is the point?

Green Homes 2 - Fri, 2025-03-07 11:27
In online photos and in actual crawlspaces that have been conditioned I mostly see the vapor barrier run to the top (or with termite inspection gap) of interior CMU piers,…
Categories: Green Homes

ICC Insulated Chimney and a Vented Chase

Green Homes 2 - Fri, 2025-03-07 10:19
Hi, We’re detailing our woodstove installation in Nova Scotia (Climate Zone 6) We’re working with a local chimney shop to order parts and approve our plan. But we’re doing the installation ourselves…
Categories: Green Homes

Insulation decision point: Vented, Flash & Batt, or Exterior Rigid

Green Homes 2 - Fri, 2025-03-07 10:07
Hello, I am at a decision point on roof insulation. My options are as follows1. Vented roof asemby w/2" of rigid board for a baffle, trusses furred out to accomodate…
Categories: Green Homes

More conditioned crawlspace questions-very confused

Green Homes 2 - Fri, 2025-03-07 09:31
I'm in climate zone 3A in North Carolina, about to build a conditioned crawlspace, my house built in 2005.  No issues with bulk water coming through the foundation walls or…
Categories: Green Homes

Help Pls: Mitsu Hyperheat Final Sizing Decision

Green Homes 2 - Fri, 2025-03-07 07:14
Info: Air sealing done (-50% infiltration, 11 ACH > 5!), Attic ccSPF flash + Timberfill loose to R-50. Data taken through winter shows an actual heat load of 35k @…
Categories: Green Homes

Setting back a Heat pump

Green Homes 2 - Fri, 2025-03-07 06:54
We have  3 ton Mitsubishi Hyper Heat supplying our renovated home and set at 70 degrees. It keeps the house nice and toasty, but runs almost all the time.Recently I…
Categories: Green Homes

Home Security Systems

Green Homes 2 - Fri, 2025-03-07 05:27
hi, we buy new house what is best home security systems which is best for my family
Categories: Green Homes

Talking to Contractors About Airtightness

Green Homes 2 - Fri, 2025-03-07 02:00
How to work with your contractor to ensure you end up with a tight house
Categories: Green Homes

Tearing Kraft Facing off 2,000 sq ft of R15 Batts

Green Homes 2 - Thu, 2025-03-06 20:45
It has been awhile since I worked with faced fiberglass batt insulation and when I did I never tore the kraft facing off. How hard and annoying is it to…
Categories: Green Homes

Off gassing/smell of Ice and Water shield through tongue and groove into building?

Green Homes 2 - Thu, 2025-03-06 19:51
I'm building a cottage in climate zone 7 (NW Ontario). The roof is single-pitch, unvented, 2:12 slope. I used much of the advise from this website to help with my…
Categories: Green Homes

Basement Insulation and Rim Sealing Questions

Green Homes 2 - Thu, 2025-03-06 15:42
Hey All,A few questions about basement insulation and rim joists as I keep wrapping my head around all the details and nuances of my build and the different types of…
Categories: Green Homes

Calculating mono-pitch roof addition loads

Green Homes 2 - Thu, 2025-03-06 15:04
Hello,I was hoping that someone could point me towards a resource that would help me calculate the ledger board and beam loads on a small mono-pitch (or lean-to) roof addition. …
Categories: Green Homes

Exterior Wall Behind Tub/Shower Pan

Green Homes 2 - Thu, 2025-03-06 14:05
CZ 3A/4A2001 gut renoI've looked at other answers to similar questions and am not entirely sure if I'm understanding correctly, so I would appreciate some additional help with this!In our…
Categories: Green Homes

Door Swing in Hallway

Green Homes 2 - Thu, 2025-03-06 12:56
Hey All,Wondering if anyone has thoughts, or can enlighten me, as to a process for determining the optimal door swing.  My wife and I remember selecting the swing (Left vs…
Categories: Green Homes

Super quiet bedrooms

Green Homes 2 - Thu, 2025-03-06 12:12
I'm building with 6" thick interior wallsWhat wall assembly will give me the most soundproof rooms?
Categories: Green Homes

Rim joist insulation, embedded mud sill

Green Homes 2 - Thu, 2025-03-06 10:55
hello,Im looking to finish part of my basement and started to insulate by gluing 2” XPS to the walls. The original plan was to cover rim joist and top of…
Categories: Green Homes

African Landscape Architectures: Alternative Futures for the Field

Green Homes - Thu, 2025-03-06 10:30
Location: Virtual and Harvard GSD, Piper Auditorium 48 Quincy St., Cambridge

The African Landscape Architectures conference brings together a wide range of landscape practices from across the continent. This two-day hybrid event highlights the transformative potential of decolonizing design to address social injustices and prepare African cities for the impacts of climate change. Speakers will explore innovative strategies through frameworks such as ecology, adaptation, and materiality that offer alternative futures for African landscapes.

Visit the...

Read more about African Landscape Architectures: Alternative Futures for the Field
Categories: Green Homes

The Politics of Climate Change and Health: Why international collaboration is now more important than ever

Green Homes - Thu, 2025-03-06 10:15
Location: Salata Conference Room, Belfer 3.5, 79 JFK St., Cambridge

Join the Salata Institute and the Southeast Asia Initiative of the Harvard Asia Center for a lunch and learn to hear from Professor and Executive Director of Sunway Centre for Planetary Health, Dr. Jemaliah Mahmood, who will talk about the Politics of Climate Change and Health and why international collaboration is now more important than ever.  Dr. Mahmood will then be joined for a discussion moderated by Dr. David Duong,, Director of Global Primary Health Care at the Harvard Medical School Center for Primary Care and the Division of Global Health Equity at the Brigham and Women’s Hospital.  Other speakers will include environment defender and community activist from the Philippines, Derek Cabe and Dr. Bach Tran, Professor of Medicine, Dean of Public Health and climate researcher at Vietnam National University.... Read more about The Politics of Climate Change and Health: Why international collaboration is now more important than ever

Categories: Green Homes

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