Green Roof Concrete Slab Thickness

A solid slab of concrete capping the top of your house.

Green roof concrete slab thickness.

Exact specifications vary but most concrete roofs are several inches thick. Some green roofs in europe have lasted more than 40 years without being replaced. Intensive green roofs have a higher weight and require a minimum soil thickness of at least 30 cm compared to the 5 12 cm of the latter. It is recommended that minimum 90 mil 2 3 mm thick reinforced butyl rubber membranes be used for green roof assemblies.

Advances of computational fluid dynamics in nuclear reactor design and safety assessment 2019. Green roofs filter air by absorbing and converting carbon dioxide to oxygen. With that in mind i ve seen slabs as thick as 16 18 due to column spacing. 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.

Determine slab thickness and ρ value based on minimum slab thickness clear span and factored loading. Flat roofing solutions bauder flat roofs. Leed and green globes. Use tables in chapter 7 of the crsi design handbook.

Roof slab forms the top cover for main vessel which is filled with concrete for the purpose of nuclear radiation shielding. For example the florida based company hurricane proof systems offers a 7 inch 18 centimeter slab of concrete in three layers. A green roof protects the waterproofing membrane from damaging uv rays freeze thaw cycling and repeated foot traffic extending its lifespan. Determine minimum allowable slab thickness based on l 28.

You could also do a low mid rise with joists sheathing and a concrete topper 2 or gypcrete 3 4 or so. A one way concrete slab system with beams and girders. A concrete roof is exactly what it sounds like. Sheets normally are 60 mils 90 mils or 120 mils 1 5 mm 2 3 mm or 3 0 mm thick.