Green Roofs On Pitched Roofs

An edging board constructed from 2 6 treated timber is secured around the perimeter of the roof using special oldroyd turf roof hooks.

Green roofs on pitched roofs.

The substrate layer has to be protected against erosion. Steep pitched green roofs up to 35 georaster elements to transfer high shear forces into the roof structure the system build up steep pitched green roof based on the zinco georaster elements enables the installation of green roofs with slopes exceeding 25 and up to 35. Slopes above 25 degrees are normally considered too steep to walk on and require additional design features. Pitched roofs start with a slope of 10 18.

It is essential to conduct a technical review of a planting project on a steeply pitched roof in order to limit the risks of erosion and to recommend the most appropriate retention device. Sloped roofs retain less water in general and the moisture content varies from the ridge to the eave lowest edge of the roof. The most crucial component of any sloped green roof is the confinement system which holds the growth medium in place during the roof s early stages of development. In order to achieve lasting success with a sloped extensive green roof there are a few basic things to consider.

Typically the studded oldroyd xv green membrane is laid over a suitable exterior grade bitumen based roofing felt to form a waterproof drainage layer. Steep pitched green roof with hydropack contents. Steeply pitched roof 30 45. Green roofs are a perfect solution to create green spaces on any type of surface.

From 10 on the green roof system build up differs significantly from system build ups below 10. Why choose the hydropack tray to green a steep roof. A pitched green roof constructed from treated timber. A technical review of the project is essential.

Above 5 degrees roofs are considered to have a pitch which may affect the design. The turf or sedum layer is then laid directly over the oldroyd xv membrane. In addition to green roofs on flat surfaces a green roof on a curved or sloping surface can be a real eyecatcher. If not properly secured a pitched vegetated roof can erode and slip under heavy rain excessive irrigation or poor plant growth.

Typically sedum has a more consistent appearance throughout the year compared to a meadow green roof in which volume and evenness of growth fluctuates within and between seasons. Read below about our green roof system for sloping roofs to transform your roof into a sustainable green roof. Planted sloped or pitched roofs look great and due to their high visibility they have been the focus for several new projects. Shear forces increase with the roof slope and have to be transferred into stable beams.