Green Homes News

Hello, I have an older home in climate zone 6 in Nova Scotia, Canada. I'm looking to upgrade insulation in attic kneewalls (2x4 stud wall) - fiberglass batts in stud…

1949 Minnesota home.  Rim joists are embedded in concrete cap on block walls. How sucebtible to rot are those joists? When insulating what is better? EPS foam board with foam…

Hello,I installed some vinyl windows last summer and they are condensating like crazy.these are casement windowsU value of .17SHGC .24VT .42air leakage .02Condensation Resistance 70triple glaze with cardinal 3mm glass…

Hello, I recently had a polyiso over-roof done as a retrofit on my home. The contractor failed to extend the vapor barrier on the structural (bottom) sheathing over the ridges. This…

See the pics.  A slab on grade 1300 sf one floor new house (frost protected shallow foundation) will be built in climate zone 6a, -15 F winter design temp, and…

HelloThis pertains to zone 5A-6A (Albany County, NY near the border of Greene County - Northern Catskill region).The house is from the 1850s and has considerable architectural detail on the…

Company emerges from Chapter 11 filing with new management team and re-engineered products

We are redoing a basement. We ripped out the old furring strips, vapor barrier sheeting, and the fiberglass underneath. The fiberglass was seperated from the concrete wall with cross-strapping, but…

Climate zone 5A (very dry, Eastern WA) Post frame home with attic trusses (center 50% open, 25% each side typical truss webs. This makes an interior Vapor Retarder very difficult.…

Hello I have a 1960ish house in climate zone 6/7 with 1/2 inch plywood 2x4 walls r13 foil faced fiber glass insulation in walls (and the ceiling). Some walls have…

Location: MinnesotaLooking for advice on insulating hard to access and non-uniform sized rim joist surfaces.  Home built 1949.Extremely difficult in some areas to get foam board in place to then…

Have a relatively new SVZ/SUZ 24K BTU (454B) air handler installed. I noticed with electrical monitoring that sometimes it will jump from a baseline of 60w (fan low) to 250w…

I'll be installing a heat pump water heater in the conditioned basement of a zone 5b (Dry) single family home. The water heater will be in a mechanical room (not…

Hi all,This is a bit of a flooring + building science question. We are getting ready to install new engineered wood floors, likely 6” wide plank, on top of a 3/4”…

A Retired Software Engineer and Home Energy Enthusiast Designs a Dual-Fuel Heating System for a Pretty Good House

Drywall has started going up in our new CT build, and I realized today I might have forgotten an insulation detail. You can see from the photos below what we've…

Is anyone familiar with Sabs construction? It utilizes eps foam boards and a formulated concrete mixture to replace wood as the structural part of the home. It is essentially a…

Two years ago we took advantage of our state's efficiency rebate program to install two heat pumps in our 2,200-square foot 1978 split level in southern Maine (6A) - one…

Hey so I ordered sheets of foil faced 1in eps foam for a roof project. Contractor said it was wrong sheets and used something else. Now I have 16 4x8…

We will be finishing the attic in our 1930 house in Atlanta, GA next year. Currently it is a nonvented and partially conditioned space with insufficient foam batt insulation. The…