Green Roof Irrigation Costs

Unlike conventional earth covered structures garden roof assemblies are lightweight and can be installed on a wide variety of new and existing structures.

Green roof irrigation costs.

The better the irrigation the greener the roof. It may be intensive or semi intensive and usually has modular growing mediums rather than complete coverage. The following rates for green roof components can be used as a guide. Example costs of individual components of green roofs.

The environmental protection agency estimates the cost of a green roof at 10 to 25 per square foot. In larger green roof projects irrigation is best undertaken by a specialist consultant to guide system design component selection installation and maintenance. Installation can be quite expensive. They are not normally installed on residential roofs due to the weight.

Garden roof assembly hydrotech s garden roof assemblies combine the proven performance of our monolithic membrane 6125 roofing waterproofing with proven green technology. Finally there is also ongoing costs to consider for maintenance and repairs. Even though green roofs are low maintenance they still need some care and attention once a year to continue. Hunter provides a leading selection of overhead and subsurface irrigation products proven to deliver.

As an estimate in the uk the average cost per square meter of extensive green roof system is 50 100 whereas an intensive green roof system is 60 150. The cost of purchasing the materials is separate from the cost of having the system installed. If one fixates on low aquisition cost they are likely to get stuck paying for high maturation expenses high ongoing maintenance costs ongoing headaches and a high lifecycle cost with a system that is short lived. Acquisition maturation maintenance and lifecycle.

The green roof portion costs between 25 35 a square foot 2 with the solar panels costing an additional 18 000 20 000. Drainage and protection layers 20 30 m 2. Obviously this price is highly variable depending on whether you want an inaccessible sedum. Table 11 provides an outline of different options for irrigation of green roofs.

However these costs may also vary according to the issues outlined above under cost considerations. Green roofs above 2 12 pitch are commonly dry at the top and moist at the bottom. In addition lawn irrigation systems cost approximately 900 on average when purchased for a single home whereas systems for apartments or businesses cost approximately 1 500 and 1 300 respectively. And while the segmental or baffled characteristic of liveroof may help to mitigate this phenomenon pitched roofs will certainly require more irrigation than low sloped green roofs.

Replacing the impervious surface of a conventional roof with.