Structural Requirements For A Green Roof

Some roofs are finished with substantial architectural build ups such as concrete pavers or stone.

Structural requirements for a green roof.

Green roofs or rooftop solar panels add additional load to a roof and its support system. Additional structural support may need to be provided. Read this section carefully before submitting architectural structural plumbing electrical or mechanical plans for a green roof. Shallow pitched green roof 5 25 the structure of a shallow pitched green roof differs slightly from the structure of a flat roof.

For retrofitting a green roof wall or facade it is important to establish. You need to make sure that the structure can cope with the extra weight of your green roof especially when saturated with water. The substrate gives the right amount of nutrients to the plants so your green roof stays nice and green. Structural engineers determine the loading requirements of a roof to resist live loads forces such as snow rainwater rooftop equipment green roofs and maintenance crews as well as dead loads the basic roofing structure and materials.

They are recognized as a bench mark set of guidelines for green roofs in germany. Structural support of the green roof. A structural engineer s advice is essential to ensure comprehensive design development based on the building s construction condition and weight loading capacity. The existing roof may not be capable of supporting an additional load.

All three types of roofs require specific layers of roofing materials not found on regular roofs. The allowable depth of the green roof is determined by the load capacity that can be allocated to it. Because water runs off the roof more quickly a thicker substrate layer is needed. The basic anatomy of a green roof consists of vegetation growing medium filter membrane drainage layer waterproof root repellant layer roofing membrane support for plantings above thermal insulation vapor control layer and structural roof support.

Green roofs are subject to the design and construction requirements detailed in article iv section 4 02 d in the rules and regulations pdf. The structural requirements for a green roof are the most important aspect to consider. Steeply pitched green roof. Of green roofs the fll green roof guidelines guidelines for the planning construction and maintenance of green roofs were developed from the principles for green roofing published in 1982 and have been revised several times since 1990.