As an insulation product, spray polyurethane foam (SPF) has many great attributes that we've talked about on this website: easy installation in irregular locations, air barrier qualities, and moisture management potential.

Poetry used to be memorized, not written down, and handed from bard to bard, memory to memory, down through the generations. Perhaps folks out there have memorized poems back when schools taught such things, or for personal interest.

Not counting things I have written, I know only one poem by memory, written by David McCord. As proof, I will recite it for you here.

Epitaph on a Waiter

By and by

God caught his eye.

Vinyl flooring is inexpensive, which has made it one of the most popular commercial flooring options, but it contains phthalates and other environmentally problematic chemicals, and it requires a lot of maintenance.

Given how complex we've made our modern residential structures, it takes a hero to delve sufficiently into the mysteries of physics to confront and overcome the adversaries of heat, air and moisture and to transmute them into allies.

[Editor's note: Robert Riversong, a Vermont builder, continues his 10-part series of articles taking design and construction to what he sees as radical or "root" concerns. Enjoy--and please share your thoughts. – Tristan Roberts] 

There's already been a lot of excellent debate around the new LEED Pilot Credit 43. I find myself agreeing with both sides! Here's where I stand in what may be the eye of the storm.

Steel beams are a prime pathway for transferring heat and cold in and out of buildings. This thermal bridging not only wastes energy, but can also cause condensation, corrosion, mold, and other indoor air quality problems.

In the last 200 years, humankind has chosen to live off the "principal" of Earth's core natural resources, not the "interest"--solar income. Here's how we can move forward with home designs that get us on a sustainable path.

[Editor's note: Robert Riversong, a Vermont builder, continues his 10-part series of articles taking design and construction to what he sees as radical or "root" concerns. Enjoy--and please share your thoughts. – Tristan Roberts] 

Most of the greenwashing we see falls into one of these nine types. Here are tips on how to spot them.

I am going to go out on a limb here, but I would bet that sometime in the last 24 hours you have received a marketing message centered around how "green," how "environmentally friendly," or (if it's really serious), how "sustainable" something is.