Green Homes News

Hi all, we are in the planning stages of an 1100 sq ft addition to our 1967 four season cottage in South East Ontario Canada (zone 5b) and are considering…

Anyone know of a brand of GPS that is readily available in NJ? Tried Halo Exterra/Subterra and can't get with HD/Lowes/local suppliers.Also anyone know a spray foam installer certified for…

Planning a partially conditioned barn build and thinking about using a "flash" layer of closed cell spray foam on the underside of the metal roof to air seal and insulate…

Masonry house in Climate zone 4A. I'd like some thoughts about this assembly -- which really is reinventing the wheel. I have a masonry wall that I'd like to insulate. I…

This was the proposed assembly :1/4″ Wood T/G decorative planking over 2×4 studsSmart Membrane Vapor BarrierR-15 Rockwool Batt 3/8″ exterior ply sheathing w/ WRB (eg  Benjamin Obdyke Hydrogap).1″ Polysico or XPS…

Just noticed that one of the big box stores is now selling both MERV 8 and MERV 13 "Lifetime Washable" filters on their website (they are not on the shelf…

My vented attic is decked but uninsulated.  I want to install 8" of Owens Corning 2" x 4' x 8' styrofoam sheets x 4 on the attic deck.  Is there…

Hello! Alan here.  I have read many postings online and many link to this site. I have a 1930 colonial with slate roofing.  The attic area is vented with lower…

Zone 6, north of Toronto, CanadaI am building a new house and I'd like to build a high efficiency home with low energy costs. I have come across Spacepak's air-to-water…

Hi, I’m looking for a viable option to add insulation to a brick veneer over 2x4 framing structure. Some Pink fiberglass in the cavity. There is black plastic sheet under…

I am replacing an aging gas furnace with a new one that includes a heat pump coil.  The existing furnace used to heat the house all by itself and is…

My questions are: In the floor assembly shown in the diagram, are the 1/4" gaps between the i-Joists and the Comfortbatt ok? Or do they need to be filled? Details:- 12'…