Lightweight, Insulating Geopolymer Earthbags Part 3

I’m proposing using a combination of ferrocement, earthbags and porous geopolymer to build durable, affordable housing. In a nutshell, earthbags filled with lightweight geopolymer cement are fastened to a rebar or bamboo frame and then plastered with geopolymer cement. This is distinctly different from heavy earthbag walls, and much different than regular thin shell ferrocement … Read more

Seismic Resistant Gravel Bag Foundations

Yesterday’s post was about the earthquake resistance of earthbags. Today’s post illustrates what an earthquake resistant gravel bag foundation looks like and explains why this design is so effective. Gravel is an ideal material for this application because it’s durable, reasonably inexpensive, readily available in most areas, has high bearing strength and prevents wicking of … Read more

Solar Pit House Building Details

Specifications: 1,127 sq. ft. interior living space, 441 sq. ft. interior greenhouse, total = 1,568 sq. ft. interior, Footprint: 36’x53’ As explained in the previous blog post, this modern solar pit house is based on the traditional pit house. The construction is much the same. Additional ‘modules’ have been added to create an elongated rectangular … Read more

Evolution of the Pit House

I’ll never forget the Native American museum exhibit of a pit house in Anchorage, Alaska. I couldn’t stop staring at it. Pit houses are so simple and yet so effective that people lived in structures like this for thousands of years with relatively minimal environmental harm. This building method and lifestyle really captures my imagination … Read more

Affordable, Superinsulated Cold Climate Homes

Dear Owen, I am currently doing research and compiling data in order to draft a proposal here in Canada largely related to solving an epidemic within our First Nations communities in regards to a lack of adequate housing. I could go on for hours and hours about the immense and serious problems in this area, … Read more

Recycled Polystyrene Insulation

Those living in extremely cold climates such as Canada and Alaska need lots of insulation so their home is warm and comfortable. We typically recommend using scoria, pumice, perlite and vermiculite, but from what we’ve been told these materials are not readily available or cost effective in the far north. Hideo, one of our readers, … Read more