Green Homes News

Hello, I removed the baseboard in the basement and saw that most walls had spots of black mold behind the baseboard. I am pretty sure that the wall base plate is…

I have a GSHP (Geothermal) supplying warmed water to a hydronic underfloor heating system which is controlled in six zones by six Warmup 4ie thermostats which do not have a…

I've seen a few details on how best transition an air barrier on the exterior of the building walls to the interior of a ceiling. It had always seemed a…

I'm working on an intermittently occupied 1950's ski lodge at 7,000 or so feet high, technically IECC Zone 6B dry.There's a section at the highest point of the building that's…

Looking at a Q600 quote for our build. 2150 conditioned feet on main level and another 2150 conditioned feet in the basement.Quote came to $16,783 and does not include commissioning.So…

I miscalculated my fan size my bathroom is 11x13 and 8 foot ceiling I bought a 110cfm fan. According to the calculations I was suppose to get 143cfm. The fan…

I have a bathroom fan that is 70-90cfm Panasonic whisper boost which is on 90cfm, dimensions of the opening is around 9” across the coverI have another bathroom fan panasonic…

Hey All,I am building an addition onto a pole barn in climate zone four (KY). I need to insulate the crawl space beneath the addition. Here are the details:- At…

Hi everyone,Before starting the work on waterproofing my rubble foundation I wanted to validate some questions with the community, especially those who have experience with foundation extending outside building.Building Description:–…

Choosing products and installation locations for ERV and HRV outdoor connections

Hello all,First, Thanks for the massive resource that is this website.Second, our location is Mobile, Alabama Climate zone 2A, but urban not coastal. Still hot and humid down south. House…

Greetings from Yucca Valley, California! I've got an HVAC question for the room...mostly a matter of priorities. We are switching out an old-school condenser/handler for a heat pump air conditioner to…

Have a new construction (2024) in MA. Basement + 2 levels. Decided on heat pumps for everything and went with LG for HVAC and Panasonic for ERV. We have one…

I'm a first-time owner of an central ducted AC system. My condensate line is working well. I've got an emergency float switch, a trap, and adequate slope. There is no…

I'm doing a cut and cobble insulation job in the roof of a 12'x16' Tuff Shed. The rafters are 2x4 and the spacing is nominally 24" OC but each bay…

Hi everyone,Before starting the work on waterproofing my rubble foundation I wanted to validate some questions with the community, especially those who have experience with foundation extending outside building.Building Description:–…

Greetings - designing a house to build on an existent slab on grade in the norther most area of coastal Maine. ASHRAE Climate Zone 6 on the water. The slab currently…

What are some good options for a permanent dehumidifier that only needs to squeeze out ~13 pints/day?  Basically I'd like it to drain itself, not take up floor space, and…

I have a client with an addition built in the late 1970's. It is one large room.The roof was built with 2x6 rafters, foil faced fiberglas insulation, skip sheathing, standing…

We are quite a ways into our build. We have: ICF Basement2x6 external wallsZIP sheathingSome windows are installedRoof is on This is my builders first time trying to build a really air…