Green Roof Concrete Slab Thickness

Commercial is typically steel w a composite deck so you ll have a 5 6 slab sitting on top of steel beams.

Green roof concrete slab thickness.

With that in mind i ve seen slabs as thick as 16 18 due to column spacing. Determine minimum allowable slab thickness based on l 28. Roof slab forms the top cover for main vessel which is filled with concrete for the purpose of nuclear radiation shielding. Use tables in chapter 7 of the crsi design handbook.

Advances of computational fluid dynamics in nuclear reactor design and safety assessment 2019. Some green roofs in europe have lasted more than 40 years without being replaced. The nominal thickness of a green roof is the approximate total height of the soil and drainage components that constitute the green roof system excluding the roof structure insulation waterproofing and plants it is common practice to use the term extensive to describe green roofs that are very thin and will only support hardy drought resistant vegetation. You could also do a low mid rise with joists sheathing and a concrete topper 2 or gypcrete 3 4 or so.

A concrete roof is exactly what it sounds like. Green roofs filter air by absorbing and converting carbon dioxide to oxygen. A solid slab of concrete capping the top of your house. Determine slab thickness and ρ value based on minimum slab thickness clear span and factored loading.

It is recommended that minimum 90 mil 2 3 mm thick reinforced butyl rubber membranes be used for green roof assemblies. Exact specifications vary but most concrete roofs are several inches thick. Leed and green globes. Green roof design background goals.

A one way concrete slab system with beams and girders. Flat roofing solutions bauder flat roofs. A green roof protects the waterproofing membrane from damaging uv rays freeze thaw cycling and repeated foot traffic extending its lifespan. For example the florida based company hurricane proof systems offers a 7 inch 18 centimeter slab of concrete in three layers.