Seattle Green Roof Design Weight

Scale this up and a 1 000 m2 traditional green roof space requires 100 tons of material to be brought on the roof and the urbanscape version only 20 tons and can be called a light weight green roof.

Seattle green roof design weight.

There are a number of things to consider when designing for a green roof. Some load bearing capacities used in design of. Perennials and low shrubs up to 1 5 m. A standard sedum roof has a saturated weight of about 80 kg m.

In addition the weight also depends on the water buffering capacity of the drainage layer. Plant material weight plugs or cuttings. They seem fairly evenly split between small medium and large sizes. A december 2009 survey in seattle found there were about 62 green roofs in the city including extensive and intensive green roofs and large rooftop gardens.

Green roofs are vegetated roof covers with growing media and plants taking the place of shingles or tiles. Seattle tilth green roof. As a certified installer of liveroof systems we can. Weight loading kg m 2 low herbaceous succulents and grasses 10 2.

Most of them are found in centrally located neighborhoods with few in the southeast and industrial areas. We have experience consulting with designers designing and installing green roofs for seattle homeowners businesses and institutions. Weight of standard sedum roof. So in dry state 50 m2 traditional green roof weighs around 5 tons while a similar sized urbanscape roof weighs just 1 ton.

Green roofs information live roof when it comes to green roofs or roof gardens liveroofs are second to none in both functionality and design. The green roofs covered a total of 359 375 square feet. Green roof vegetation type. Our experienced green roof design team can start with a blank slate and transform it into a little piece of nature right on your roof taking into account every environmental and engineering requirement.

This is especially true of intensive green roofs which can have soil that is two feet deep or more. Liveroof systems are fully vegetated when installed on your roof they are also built to become a monolithic roof system. Small trees up to 6 m. The thicker the substrate layer the greater the weight of the total roof structure.

Shrubs up to 3 m. Large trees up to 15 m. One important item to design for is an increased structural load. System depth dry weight saturated weight 4 625 media depth 15 20 lbs ft2 25 30 lbs ft2 layered system extensive growing media 375 drainage layer 1 water retention layer includes 2 lbs s f.