Extendable/Retractable Roof Overhang for Sun and Shade Harvesting

This video highlights how properly designed roof overhangs and window awnings can provide free shade and cooling in the hot summer months, as well as maximizing sun exposure and free light and heating in the cold winter months.

For more info, see:

Brad Lancaster

Since 1993 I’ve run a successful permaculture consulting, design, and education business focused on integrated and sustainable approaches to landscape design, planning, and living. And as I live in a dryland environment, water harvesting has long been one of my specialties and a passion. I started writing the Rainwater Harvesting for Drylands and Beyond series with the goal of empowering my clients and my community to make positive change in their own lives and yards, by harvesting and enhancing free on-site resources such as water, sun, wind, shade, and more. I wanted to provide accessible books that explain what water harvesting is, how to do it appropriately, and how to tailor water-harvesting strategies to the unique conditions of different sites and integrate it with the harvest of other resources. I believe we all can become beneficial stewards of the land, and partners in the ecosystem in which we live, and I believe that by harvesting water—and more—we can all begin to transform our households and neighborhoods from being consumers of resources to generators—and even regenerators—of resources. Drawing on my years of teaching, consulting, designing, on-the-ground implementation, and learning from others, I offer readers my clear and simple process to assess and design their own harvesting systems at home and throughout their community.


  1. Both links to, Rain Water Harvesting for Drylands & Beyond Vol.s 1 & 2, don’t work for “Extendable/Retractable Roof Overhang for Sun and Shade Harvesting”. 05/08/13, Brad Lancaster.

  2. Thanks Leona. Fixed now. We have a new shop, so I’m trying to fix these older links as I discover them.

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