| Stormwater Practices for Cambridge, Massachusetts |
|
Location Information |
| Name |
Address |
City |
State |
|
| Graduate Residence |
29 Garden Street |
Cambridge |
Massachusetts |
|
Owner Information |
| Last Name |
First Name |
Email |
Phone |
| Harvard |
|
|
|
Designer Information |
| Last Name |
First Name |
Company |
Contact |
Design Date |
|
|
|
|
2002 |
Installer Information |
| Last Name |
First Name |
Email |
Phone |
| American Hydrotech |
|
|
|
Web |
|
|
| Practice 1 |
Practice 2 |
Practice 3 |
Practice 4 |
Zone |
| Green Roof |
NA |
NA |
NA |
Commercial |
Narrative |
| In 2003, this extensive green roof was installed at a cost of approximately $50/square foot. It is a 10,000 square foot roof that covers a roof previously composed of asphalt, which covers a parking garage. American Hydrotech installed the green roof, including:
-Monolithic Membrane 6125-EV (Environmental Grade) FR (Fabric Reinforced) 215 mils
-Hydroflex BR (Root Barrier) 160 mils.
-Hydrodrain 300 drainage course 3/8”
-Floradrain 40 Water Retention/Drainage/Aeration layer 1 ˝”
-System Filter fabric
-Hydrotech Lite Top growing Medium 4” in the field, 12” in shallow planters, and 36” in deeper planters
-Hydrotech concrete pavers and precast curbs and walls.
They also provided a 2-year warranty for the plants, 20 years for the membrane, and 2-year maintenance contract.
The primary reason to install the roof consisted of a desire to improve residents’ views of the roof. The only plants chosen were very “tough”; their basic characteristics include shallow root systems, resistance to direct radiation, drought, wind and rost resistance, and their ability to regenerate. As a result, no chemicals and little irrigation were needed. The plants range from sedums to evergreens to shrubs and include: ivy, sedum album, juniperus horizontalis, and others.
Photograph courtesy of Levinson, Nancy (December 2004), 29 Garden Street Harvard Graduate Housing Cambridge, Massachusetts. Architectural Record, p. 187. |
|
|
|
|
|
|
|
|
