Green Roof Irrigation Requirement

While green roofs are designed to be sustainable features in the urban landscape it takes a little ingenuity a bit of imagination and a lot of product and plant knowledge to make the whole project come together.

Green roof irrigation requirement.

Substrate properties and depth are also important as they influence water infiltration holding capacity and drainage. Consider irrigation of intensive green roof systems early none of the above removes the requirement for good sound horticultural practice such as weeding seasonal mulching thinning out the plantings appropriate feeding or installing the plants at a size that enables them to slowly acclimatise to their new environment. Optimizes distribution of rain irrigation water across the roof surface even on steeply pitched roofs. The deeper the substrate used the more moisture it can hold to ensure plant survival during dry periods.

Planning for irrigation on a green roof should consider the site layout and conditions access exposure type of plants climate and water supply issues pressure quality etc. For green roofs that receive runoff from roof directly connected impervious area dcia inlet control systems may convey and control the flow of stormwater from the contributing catchment area to the green roof. We suggest on an extensive sedum green roofs a permanent irrigation system is not necessary but consideration must be paid to the roof and supplementary watering if periods of prolonged drought 2 weeks occur. Irrigation is a key component to a successful project.

Designing green roof irrigation. Irrigation system to be sized correctly for all projects. For extensive green roofs that require occasional watering.