From time to time we answer reader’s questions. Q: Why aren’t people making roofs from earth using domes or Nubian vaults? In impoverished areas the cost of a tin roof is sometimes a year’s salary. A: Domes and vaults evolved in extremely dry areas of the Middle East, where wood was scarce and lack of … Read more
There’s growing interest in living roofs or green roofs. The difficulty is deciding on the waterproof membrane. Rubber pond liner (EPDM) is the most waterproof and durable material, and the most common choice due to proven performance, but it’s also very expensive and made from nasty petro chemicals. I think a number of less toxic, … Read more
We used pre-made panels of thatch to roof our roundhouse. Thatching is usually very slow and laborious, but we thatched our roundhouse in just one day and for only $100. That’s why I love thatch panels – they’re very inexpensive and all the tedious work has already been done. And they work great on round … Read more
Ever since the earthquake in Haiti we have been inundated with requests for information about using earthbags for reconstruction efforts. Owen Geiger and I have joined with Patti Stouter to assemble a coherent response to this need that is based on our understanding of the strengths and weaknesses of earthbag building, coupled with some knowledge … Read more
From www.raglan.net.nz: Want to know more about greener building techniques? Solscape Eco retreat at Manu Bay, Raglan are running an earth bag building course workshop from 16th-30th March. Read on to learn more about earth bag building. From the Raglan Chronicle, October 2009, by Edith Symes: It looks like a teletubby house, or maybe a … Read more
There is a whole class of cement that was very popular in the days before the invention and manufacture of Portland cement quickly replaced its use. Generally classified as magnesium-based cement, this material was used in historic times in Europe, India, and China, among other countries. It is unfortunate that Portland cement has replaced the … Read more