41 years ago Denis Hayes, a young activist with a vision for a post-carbon energy future, organized the first Earth Day. That day of celebration and teach-ins was my first realization of how the resource flows through buildings impact the land, air and water. I grew up with a great appreciation for the indigenous earth, [...]

8 dwellings 145-151 Laurel St. Northern Liberties, Philadelphia 2009 The first LEED for Homes Platinum duplex residences in the U.S.A. This eight unit residential project explores the highly efficient and architecturally latent potentials hidden within the traditional form of the Philadelphia “Row” home. The vertical rhythm, regularity yet diversity of this most prevalent residential urban [...]

As a follow-up to a recent post on Heron’s Head EcoCenter, we caught up with Alex Rood of Fulcrum Structural Engineering to discuss his contributions to the project. For those who have not read our recent post on the project, Heron’s Head EcoCenter is San Francisco’s first off-the-grid educational facility and laboratory for sustainable design [...]

In previous posts, we have looked at the addition of a green roof over a garage at a residence located on a steep slope which provided the clients with a planted space in the front of the house.  In a second post, we looked at the implementation of a green roof as a key design [...]

Perched on a knoll at the edge of the bay, the Heron’s Head EcoCenter is a welcome beacon in the gritty, industrial landscape of Bayview/Hunters Point.  The green roof, reclaimed wood exterior siding, and restored wetlands offer clues to the native ecology of the place, and hint at innovative systems that make the project self-sufficient.  [...]

Any architectural style or design can be green. As an architectural photographer, I am constantly inspired by my client’s applications of sustainable design concepts and materials that come together to create spaces of great beauty and comfort. Many of these projects incorporate beautiful natural lighting that does not always translate photographically without supplemental light. My [...]

Cork is a fantastic, 100% natural, material that has been used as an insulting material for years, although is not well known by most of the people working on sustainable and zero carbon projects.  So what makes this material special?  Cork is the bark of Cork Oak (Quercus Suber), collected every 9 years and later [...]

There has been a lot of discussion recently about fly ash in concrete as there are concerns about heavy metals in this by-product of coal fired power production.  “Replacing Portland cement is a high priority for all of us…” Russell Perry, Smith Group.  “The Environmental Building News” (Alex Wilson) continues to support the use of [...]

I’ve had several reasons for designing living roofs and have faced many challenges in implementation. Luckily living roofs can come in many forms and serve many purposes. In this post, I will try to briefly walk you through the second of my forays into this exciting and challenging subject. For our House Ocho project in [...]

I’ve been exploring various aspects of living or green roofs since I first started my own architectural practice about ten years ago. In fact my very first project was to fix up a shingled Victorian in San Francisco. It had a tiny garage in front of the house dating back to 1912 and a nice [...]