Well, it’s Hemp History Week. Here’s the short version of the industrial hemp rant: If you think the US is a capitalist country, think again. We can buy all the industrial hemp products we want, but we can’t grow the … Continued
The Hemcrete installation continued today in the freezing weather, and is up to the second floor. Ian Snider from Mountain Works dropped by yesterday to discuss some of the sustainably harvested wood he will be supplying to the project. Ian’s … Continued
Eco-Panels came out on Tuesday and Wednesday and installed the S.I.P. roof. The finished roof system for the Nauhaus Prototype will have an insulation value of about R80 when completed, because the spaces between the 8″ rafters will be packed … Continued
……………………….. Well, one wall anyway. Yesterday Ian and Mario from Lime Technologies came out in the rain to help us install some Hemcrete, starting the first home in the United States to be built with the product. The rest will … Continued
Today, the concrete slab was scored on a three foot grid, to prevent cracking. David Madera and Greg Flavell of Hemp Technologies also helped us to perform a full-size Hemcrete test. Click here to view the entire Nauhaus Prototype Construction … Continued
NAIMA has a map of fiberglass, rock and slag wool manufacturers:
Today, Home Energy Partners came out to spray the closed-cell insulation for the slab and exterior walls. Click here to view the entire Nauhaus Prototype Construction Chronology.
Eco Panels has a great explanation of what’s going on with all the new soy based polyurethane insulations. …all polyurethanes are petroleum derivatives obtained by combining a polyisocyanate (iso) group with a polyalcohol (polyol) group. A great chemistry write-up on … Continued
Today, another 20 mil. vapor barrier was spread over gravel, in preparation for the insulation and concrete slab. Click here to view the entire Nauhaus Prototype Construction Chronology.
Today the foam insulation and drain were installed at the edges of the stem walls, and the CMU was sealed. Click here to view the entire Nauhaus Prototype Construction Chronology.