Green Homes News

How to locate, size, and detail exterior terminations for balanced mechanical ventilation systems

The tried and true seemed to be 1” (or so) of air space beneath the sheathing for soffit to ridge ventilation.I recently have encountered the “that is simply not enough”…

Has anyone installed four 3 inch layers of rockwool comfortboard 80 on  exterior sheathing? I have one solution that uses custom 'larsen trusses' with 12 inches between the inner and…

I need some advice on a renovation I will be starting in the next few weeks. The concern arises on where to put the WRB , with rigid foam insulation…

A new report examines the building industry’s endemic plastics problem, dissects common myths, and offers some viable solutions.

Working on a new build with a vented attic in CZ 4A and becoming concerned about nighttime radiative cooling leading to intermittent condensation on the roof sheathing. Exterior roof insulation…

Hello,I was wondering if anyone had anything to add to my decision matrix on my upcoming purchase and install of 4" exterior insulation.  This is on a 2 story custom…

The house was built in 1924. Roof is 2x6 stick-built 16" OC gable roof (1x ridge), 1x8 decking with asphalt shingles. There are 2 dormers on each side of the…

I live in central Vermont and have a staple-up hydronic radiant floor (Onix) under a tiled living space (10'x18'). The basement below should be treated as unconditioned, but it has…

Why drawings, specs, and coordinated documentation form the backbone of high-performance residential construction

Why does everyone seem to prefer the idea of putting the insulation below a foundation slab instead of on top of it? That seems harder to do, in terms of…

We recently raised a 200 year old post and beam frame after repairing or replacing many timbers. We plan to build an interior 2x4 wall and fill the 11 inch…

In my plan, I am required to have R60 in attic. Is it possible to get to R60 using two rockwool or fiberglass R30 batts ?

What's the best way to address this open duct that just dumps outside air into the basement? Its for combustion air, but it's not needed anymore. Remove the entire thing…

Zone 6a. Windy area with prevailing wind blowing through main gable vents. Ranch house has 3 gable vents plus ridge vent. No soffit vents. The soffit area has a tiny gap…

Hi all,Looking for a sanity check on a cathedral ceiling rebuild after water damage. I’ve read extensively on GBA and want to confirm I’m not missing any moisture risks.ContextLos Angeles…

Hi all, I've looked online and haven't been able to find a proper detail showing how solar panels should be integrated with a clay tile roof.  Working on a project…

We are building a breezeway home with corrugated metal siding over coravent rainscreen and currently working with the sider on how to detail the breezeway area. Specifically the area where…

From load modeling to air-sealing sequencing, the most successful Passive House and high-performance projects start with early, informed decisions

So I’ve been burning candles nonstop lately, and I keep running into this weird thing where my Fresh & Clean or Fruity & Citrus scents just tap out after a…