Green Homes News

Hi, long time reader and practitioner, but 1st post :-) I'm hoping for some of the talented wisdom I often see here...QUESTION:  1) do i break rule of no double vapor…

Hi all, looking to replace a tiled roof in CZ3b.Currently there is a tile roof, un nailed over a felt underlayment. Most contractors want to use some type of peel…

I’m in climate zone 5. I have large old double-glazed windows (R-2?) in rooms that are rarely used. Can I safely apply an insulating panel directly onto the interior surface…

I live in Maine in climate 6 and have an existing 15kbtu hyper heat minisplit downstairs and was thinking about adding another unit in an upstairs bedroom that's about 200sqft.…

Proper water management details start outside

This is a great community, thank you for all the education and content. I am renovating a 200 year old house in southern Maine and I'm trying to form an…

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I am working on some planning for a few detached single family homes with my local affordable housing group and we are discussing our options for heating and cooling.  The…

Integrating Solar-Ready Storage to Add Resiliency to Any Home

After smelling rotting death in our newly built home since we moved in this spring, the mystery was recently solved.Sometimes the smell was very faint, sometimes the basement reeked. The…

Considering a UV purifier for water in my home under construction.  I know there are other options, but even less familiar.Any feedback, experience to share, recommendations?

Haven't been able to find a similar question in the archives so here goes:Building a 3 car detached garage with a 900SF apartment above built to PGH standards.  Planning to…

Hello,I live in Virginia, and we are currently on an adapted version of the 2021 IRC. I know that this is a rookie question, but the fastening requirements of Chapter…

New emergency regulations anticipated the federal government’s ending of valuable tax credits

Flat Pack Container House offer convenience and efficiency, but their thermal insulation performance is often criticized. Effectively enhancing their insulation to ensure comfortable living year-round has become a key obstacle…

With container houses rapidly rising due to their cost-effectiveness, speed of construction, and eco-friendly advantages, will they genuinely threaten the dominant position of traditional concrete housing in the market? And…

With the goal of carbon neutrality, portable, ready-to-use Mobile Solar Container are becoming a new energy trend. How do they disrupt the traditional energy model? Can they be upgraded from…

Hi all. Thanks for the wealth of info this site is and especially this q&a board. I’m to the hvac portion and have hit a brick wall on finding contractors…

We finally have a permit to build our detached garage and the drawings specify an ICF foundation. We are in CZ 6 so winter is cold/snowy and summer is hot/humid.…

Simple question. I have a roof assembly that dries to the interior. The "fully open" permeability of drywall and various smart vapor retarders is the following:Painted drywall ~5 perms.Membrain: over…