Green Homes News

My house has no external insulation over the rim joists. I have hear that added interior insulation over rim joists will prevent head from inside house from keeping the rim…

Has anyone seen or have any thoughts about the newly-released InSoFast Batt- Bracket?  These are a variation of the X-Bracket.  The Batt-Brackets are designed to use batts for continuous insulation…

Hi All, I've got the heat pumps all turned on in our new build in CT, and they're doing a great job maintaining temps through this cold snap. The house isn't…

Hi all,I've learned a lot so far from this great community, but it seems the more I learn about building science the more questions arise.  I live in a two…

Is a separate system better than one integrated with the main HVAC?

We will be finishing the attic in our 1930 house in Atlanta, GA this year (Climate Zone 3A, winters include multiple days in the 20s and summers include multiple days…

Hi all,From afar, I'm helping my daughter and her partner plan a major energy upgrade on their 1920s house in Livingston, MT. Lots of shell improvements as the focus. Another…

In the past few months I've been using the free versions of the mentioned AI platforms to run energy models on the deep energy retrofit I'm working on. The process is…

I have a serious icicle roof issue on a 1970 raised ranch. The first thing I want to insulate is my open chimney chase, see pictures. Should I just frame…

I think I screwed up the posting of sketch so trying this again.Looking at an approximately  16′ x 28′ one story main bedroom addition in climate zone 6A on well…

We just built our passive house in Northern Wisconsin. It is ICF construction with a Carrier mini split system. This is our first winter here and January has brought a…

Hello and thank you for advise. I really appreciate everything I have learned from this site so far. I have read insulating low pitched article and comments after the roof…

Not the state of Michigan. An old cellar that was dug out to a basement. it’s defining feature is an outer three foot foundation, then a two or three foot ledge…

Hi allI am in the process of building a two story, wood framed, L-shaped house in climate zone 4A. One part of the building will have the underside of the…

I'm planning to retrofit an erv system in my finished home. My options for running the fresh air duct are limited. One option is to have a 20 foot run…

Hi there GBA,After reading through a number of articles and forum posts I've started trying to insulate my walkout basement.  I am in zone 6a and am using 1.5" Thermax…

This product is being touted as "The Most Advanced Wall Sheathing" system and is getting incorporated by some major home building companies here in Zone 7 country. It's a system…

Looking at an approximately  16' x 28' one story main bedroom addition in climate zone 6A on well drained coarse sand with daylight not far down hill.  This is my…

A question about window SHGC ratings -I understand a low SHGC helps to block unwanted heat gain through windows.But if a window is fully shaded, such as within a deep…

We’re struggling in our current house with heat.  It’s a 19th century farmhouse that I rebuilt to the best of my amateur ability.If we heat the lower level to 70…