Floating out on the waters of Lake Mohave is the Cottonwood Cove Marina, a desert oasis that is set to be the world's first LEED-certified floating building. Designed by Florida-based Carlson Studio Architecture, the eco-friendly marina provides concessions and boat slips for visitors to take out on the lake. Lightweight, modular construction, eco friendly materials, daylighting, and energy-efficient design are a few of the green building strategies that are pushing the marina towards LEED Gold certification.
Floating halfway between the north and south part of the lake, the new marina is constructed with a SIP modular wall and roof system. This system improves the building’s energy efficiency while lightening its weight, reducing the need for a beefier floating foundation system. The decking is made of a composite of rice hulls and recycled plastic, and the exterior stucco contains recycled tire particles. The building contains a large proportion of recycled and regionally sourced materials along with low- or no-VOC products.
The desert climate required a tight and very insulated building to block out the sun’s heat and keep the interior cool. A standing seam metal “cool” roof lowers heat gain by reflecting solar energy, but the intention is to install a solar system to soak up that energy for use in the building. Operable windows encourage natural ventilation during cooler times of the year and high performance glass and daylighting help reduce energy use.
Lake Mohave sits right one the border between Nevada and Arizona and is part of the Lake Mead National Recreational Area. The new Marina expands services of the Cottonwood Cove Resorts, owned by Forever Resorts, a concessionaire of the National Park Service. The new green marina, which officially opened on June 6th, may very well set the bar for floating facilities as it helps educate boaters on environmental sustainability.