Green Homes News

I've decided on an "insulated raft foundation" for my 1500 square foot, single-level, double-stud-wall, radiant-heated, shed-roof Scandinavian cabin in Greenville. I'm looking for a list of contractors familiar with insulated raft…

Does anyone have experience with timber hp exterior board insulation?

For the cut-and-cobble approach to insulating a framed wall cavity with foam board, do you need to use adhesive to stick the foam board to the wall sheathing? Or do…

The IECC gives builders several ways to meet wall-insulation requirements—including cavity insulation, continuous insulation, and performance paths. Here’s how the options work.

Hello,I have just read the most recent Q&A spotlight article regarding a wall assembly in zone 6, midcoast maine. I am designing my own house in the same area and…

Hi all,My 2nd floor framing plan will likely require lots of structural adhesive. As part of an exposed timber frame floor I’ll be using it to build 2 and 3-ply…

Hi GBA Community,I am trying to help a client determine if a heat pump water heater or a standard electrical water heater is best for their budget / long term…

I have a gable vented attic and just got a new roof.My house is a cape cod from 1937.  I understand the proper method would have been to have a soffit…

Does anyone know or have ideas on how Havelock wool insulation would compare with wood-fiber insulation? Also, anyone with experience using Havelock wool? Thanks

Hello, I am doing my taxes.  I am nearly complete with my house (new construction, three year project) and I spent a lot of money on doors, windows, insulation and…

This R-30 wall is inexpensive and easy to build

Hello Im in chapel hill nc zone 3 Im looking into insulating 30x40x12 metal building shop it has 2.5 inch metal framing i have been quoted 2 inch closed walls…

GBA editor Randy Williams talks with contractor Brian Williams about running a multi-trade mechanical business, coordinating complex projects, and what it takes to deliver better-performing homes

Hi all,Working on a mid century modern remodel project.Part of the remodel work is to widen all interior door openings for accessibility, but unfortunately with this, we will need to…

I have a gable vented attic and just got a new roof. My house is a cape cod from 1937. Been studying your building science articles for almost 2 years…

The importance of indoor humidity and why maintaining a balance is crucial for you and your home's health

Hi all, I’m starting the joist layout for our 2nd-floor wet room (with tub).  Currently the entire floor design is for 2x10 joists (these are already site-milled) 16” o.c.  I’m…

Looking for suggestions on a book(s) I can use for a Building Science course I will be teaching next Fall.Thank you all in advance!

 I’ve been thinking a lot about humidity. I live in a very humid place, Washington, DC.       It’s very common for people here to need a dehumidifier in addition to…

I'm working on a siding project this year to replace old Vinyl with wood siding from a local supplier. The house is a 1.5 story, built in the 1940s with…