passive house

Vapor Barriers

In most climates, vapor barriers, or, more accurately, vapor diffusion retarders, should be part of a moisture control strategy for a home. A vapor barrier or vapor diffusion retarder is a material…

Radically Sustainable Green Buildings.

Global Model Earthship

Our most universal model for the developed world is the Global Model. It can be modified for almost any climate and comes in many sizes. It can also come in custom sizes. It has been built enough…

Radically Sustainable Green Buildings.

How to Colonize Mars Succesfully, A Primer

Humanity will colonize Mars. It is inevitable. We cannot wait for everything to be perfect on Earth before we go to Mars (or the Moon). Colonizing Mars will unify Humanity in a way in which nothing…

Radically Sustainable Green Buildings.

Wool Insulation: Healthy and Safe Spaces

Ahead-of-the-trend green builders, architects, and homeowners are excited about using healthy, sustainable sheep’s wool insulation for new construction, and retrofitting existing homes and…

Radically Sustainable Green Buildings.

Circle Studio Earthship Tiny Home

Simple Circular Earthship Tiny Home. Can be the first part of a larger building. Drawing set consists of four sheets. Super Sustainable Beyond LEED.… Read More


Radically Sustainable Green Buildings.

Puerto Rico’s energy crisis calls for sustainable solutions

On September 20th, Hurricane Maria pummeled into the Puerto Rican coast with wind speeds of up to 150 miles per hour, deluging the entire island with rain and quickly pulverizing its energy grid. The…

Radically Sustainable Green Buildings.

Best Of Show: Sage Electrochromic Glass Is A Thermostat For The Sun

Image credit Lloyd Alter

Sage Electrochromic glass has been on the TreeHugger radar for a while; we first covered it in 2006 and Mike expanded on it last year.

It is a fascinating product, glazing that darkens at the flip of a switch, eliminating t…

Shocking: Even After Solyndra, Coal Defender Rep. Joe Barton Backs Solar Loan Guarantees (video)

Color me impressed. Rep. Joe Barton of Texas, the man who

Unity College Scores Again With TerraHaus That’s Passivhaus

Images credit Unity College Passive House

Unity College says “we’re leaders in the environmental movement, focused on sustainability in the classroom and in the real world.” When it comes to their buildings, they practice what they teach; their lates…

Passive House Institute In US Dumped By Mother Ship Passivhaus

This is big news in the Passivhaus world; Andrew Michler of Inhabitat breaks the story that Passivhaus Institute Ends Relationship With Passive House Institute US

He writes:

The founder of Passivhaus and director of Passivhaus Institute PHI, Dr. Wo…