Urea formaldehyde foam insulation (UFFI) has been out of the spotlight, but going into a lot of buildings—often being referred to as Amino Foam.

In working on major updates and expansions to The BuildingGreen Guide to Insulation, we’ve had an opportunity to dig into some of the insulation products out there that you don't hear so much about. Some of what we’re found has been surprising.

Installing a Mitsubishi air-source heat pump in our new house The indoor unit of our Mitsubishi minisplit heat pump. Click to enlarge.Photo Credit: Alex Wilson


LED light quality is still not very good, but a new California standard could change that, and prevent another CFL-style consumer rejection.
Viridian tropical hardwood decking is reclaimed from shipping materials—and it should last decades Installing Viridian decking on our front porch. Click to enlarge.Photo Credit: Alex Wilson

The United Nations, climate change, and resilient design: a day at the U.N. World Habitat conference The UN assembly hall where we met. Click to enlarge.Photo Credit: Alex Wilson

A would-be HVAC designer wonders if a ductless mini-split head can be hidden in a closet and connected to conventional ductwork.

This post by Scott Gibson first appeared on Green Building Advisor.

LED lighting has come a long way in a very few years and can now fully supplant incandescent and fluorescent technology Cree's new CR6 LED downlight for recessed cans.Photo Credit: Cree

Managing moisture as intensely as we manage energy is key to building durability and indoor air quality (IAQ)

WUFI doesn’t kill buildings. Poor design, specification, and workmanship kill buildings.
A three-unit condominium project under construction in Brooklyn is one of many Passive House projects that are springing up in the Borough The unit on the right, constructed of ICFs, is expected to achieve Passive House certificationPhoto Credit: Alex Wilson

With EarthCraft certification being a requirement, energy performance of homes in Serenbe is relatively good; transit options being planned will also help save energy.

A research engineer at Pella Windows finally offers some adult supervision for our benchtop tape tests.

by Peter Yost

This is part of an ongoing series. Read all the Sticky Business posts here.

Developer Steve Nygren is putting New Urbanist principles into practice at the Serenbe Community outside Atlanta A wide range of architectural styles are represented at Serenbe. Click to enlarge.Photo Credit: Alex Wilson

The pending closure of Vermont’s only nuclear plant will hurt the local economy, but it could catalyze sustainable economic development
A new generation of CO2-based heat pumps could avoid the high global warming potential of standard refrigerants and generate much higher temperatures
Paying attention to the various layers in a building envelope is critically important for ensuring air tightness and moisture management—and can be attractive, too.