| PRODUCTS WE OFFER
Vegetated Retaining Walls Biofilters HOW WE WORK WHO WE ARE WHAT WE THINK WHY WE STARTED WHAT THE MEDIA HAS SAID JOB OPPORTUNITIES OUR HOME CONTACT US HOME
|
TYPES OF LIVING ROOFS
We install all types of living roofs: intensive and extensive, in-situ and pre-grown, proprietary and non-proprietary, residential and commercial, flat and sloped. We are qualified to install most proprietary systems, yet we are not beholden to any one system. With our working knowledge of most systems, we can bid to your spec or we can help you choose the right system for your specific project.
Extensive |
vs. |
Intensive |
 |
|
 |
Extensive green roofs are shallow (less than 6"), unirrigated, light-weight roof covers that offer low cost and maintenance with high performance value. Extensive living roofs are typically planted with sedums - low drought tolerant ground covers that thrive in a shallow, rapidly draining growth media and are resistant to harsh rooftop conditions. Sedums come in numerous varieties and can provide beautiful contrast of color and texture.
|
|
Intensive living roofs are made with deep soil (greater than 6") and greater organic content to support broad plant varieties. Design variations are practically limitless. Most any garden that can be created on the ground can be created on a rooftop, including such elements as trees, shrubs, walkways, patios, ponds, etc. Possibilities are only limited by overall weight of the system and its effect on the cost of the supporting construction.
|
In-Situ |
vs. |
Modular |
 |
|
|
Extensive living roofs of any significant scale are typically built in place. This approach provides the most economical pricing and delivers the most reliable long-term performance. Plantings can be installed from cuttings, plugs, or pregrown mat depending upon climate conditions and urgency to achieve full plant coverage. |
|
Modular systems offer the ability to achieve full grow-out prior to site installation. Placement of the pregrown trays on the roof requires low skill level and is executed quickly. The reduction in installation cost is often offset by increased cost of the trays and grow-in duration at the nursery. But when access to the roof for grow-in maintenance is limited, this approach can be a viable solution.
|
Sloped |
vs. |
Flat |
 |
|
 |
Depending on the roof slope, various measures are required to hold the growing media in place and prevent slippage over time. As the roof pitch increases, so does the cost of the components required to keep the system in place, but with the appropriate budget we can grow systems on any pitch - even vertical walls.
|
|
Flat roofs allow for the construction of the simplest, and therefore least costly, systems. Flat roofs are never perfectly flat - enough pitch is required to facilitate positive drainage. |
Proprietary |
vs. |
Non-Proprietary |
|
|
|
Most roofing manutacturers offer complete extensive living roof systems and we have installed most of the systems currently on the market. We team with roofing installers to offer sole source warranties for complete green roof systems from waterproofing through the vegetation. |
|
We offer full design and implementation of non-proprietary systems. These systems comply with FLL standards and can often result in simpler, higher performing green roofs. Sometimes this approach results in highest value combining superior long-term performance with low cost. |
|
|
