After sleeping on it, I would like to make one small amendment to yesterday’s blog posting on green roofs. Sometimes, there actually exists a good reason not to employ the glorious expanses of chlorophyll I gushed so extensively about in my last post.
My latest project has been as a consultant on this lovely learning opportunity – a small guest house built to adhere to the Living Building Challenge. The house was designed by an architect, and my job was to find suitable plumbing fixtures, lighting and interior finishes. This wonderful project will be the subject on an entirely separate posting, but it is relevant here in that it collects all water that falls on it. The rain water is stored in large, underground tanks, and supplies all water needs. While raw sewage is directed to an already existing drainage field, all gray water goes through an elaborate filtration system, before it is re-used. This way, this little house is entirely self sufficient in terms of water, and should make it through even a very dry summer without a problem. And here is the amendment – the architect opted for a metal roof, which in this case, of course, is totally appropriate.
So, is it well insulated? You bet! The walls are 18” thick and consist of straw bales and clay, and all the wood was either repurposed or harvested on-site. If you look at the roof, you will see that it steps down once it reaches the eaves. This is because it was not necessary to add all that insulation once outside the walls.
I’m thrilled to have even a small part of this project, and will write another blog post soon on the challenges I ran into. Believe me, they were quite significant, especially in the plumbing department…