Palomar Medical Center

Escondido, CA

This sustainable, extensive living roof mimics shape of the dry Escondido hillsides. The "wavy roof", as it is known, boasts crests and troughs with slopes as steep as 4:12; this presented challenges for growing media and water retention. The final design created a regenerative habitat for local birds and insects; it utilizes local native plants adapted to dry, shallow soil conditions on exposed slopes, such as Arctostaphylos glandulosa ssp. crassifolia, Salvia clevelandii 'Alpine', Eriogonum and Eriophyllum. Teardrop shaped zones of Our Lord's Candle (Hesperoyucca whipplei) and valleys populated with blue Penstemons (P. spectabilis and P. heterophyllus) symbolize water in the dry landscape. Gabions set into the insulation direct water to perimeter drains and double as maintenance paths.

* Work performed while with another firm