Green Homes News

Many HVAC problems start on the drawing board. Here are common design mistakes that lead to poor airflow, comfort issues, and inefficient systems.

My house (Climate zone 4A) has a small attic (200sf), which is encapsulated with 4" of polyiso above the roof deck, mineral wool batts in the rafter space and an…

I have a house built in 1960 in Climate Zone 4A.  I am looking to insulate or at least air seal the rim joist bays along with insulating the basement…

Integrated design in residential construction: why early builder involvement improves cost, quality, and coordination

Hi AllWe're in framing stage. As air barrier, I have Zip 1/2" on the attic floor. This goes underneath the knee wall bottom plates. The roof is not fully framed…

HiI'm looking to insulate and finish a basement room made of concrete blocks. The foundation exterior walls are covered with a delta membrane and damproofing (bitumen material-black stuff).The concrete block…

I happened to see this at a construction site today. One inch XPS directly over the studs, and then sheathing -- Zip board -- over the XPS.I thought it was…

GBA connected with industry leaders to discuss some new products that have come to market

Helping a friend who is installing an exhaust fan in a bath that never had one.  The duct from the exhaust fan will go to the attic and about 7'…

I am re-siding a house built in 1986 in the Cleveland, OH area. As part of the project, we are doing an energy retrofit. I am familiar with current building…

Hello  I started this thread back in November and since then I got a thermo imaging camera and shows a lot. I have an ice cold ring around the perimeter…

As extreme weather grows more frequent, resilient housing design is becoming even more important

My builder wants to use R30 closed cell and open cellfoam in our exterior wall, 5/8" cdx sheathing no exterior insulation and no furring strips. the install would in clude…