The roof should incorporate insulation and usually a vapour control layer to protect from interstitial condensation.
Concrete slab concrete flat roof section detail.
The steel joists will provide a strong foundation for the flat concrete roofing.
D 2 21 waterproofing between layers of thermal insulation d 2 22 flat roof with impermeable concrete slab and external insulation d 2 23 flat roof with impermeable concrete slab and internal.
The bottom of the joists should rest on either a beam or a wall.
A concrete roof is exactly what it sounds like.
Exact specifications vary but most concrete roofs are several inches thick.
A concrete slab flat roof is normally made up of a structural layer of concrete finished with a smooth screed onto which a water proof layer such as a membrane is laid.
Roche writes in a recent q a post that just about every foundation design for a slab that he s seen either puts all of the rigid insulation on the outside of the foundation or.
Concrete construction the simplest way to construct a roof terrace is by utilising a concrete slab.
The layer of rigid foam insulation that separates the concrete foundation wall on the outside from the slab on the inside.
The basis for this simple but effective solution is natural air pressure.
As the width of the concrete slab is 16 3 4 inches place the steel joists at this distance.
Constructing a concrete slab for a structural roof is different from that for building a slab on the ground in that attention must concern two important objectives.
Roche has paused at an important detail.
A solid slab of concrete capping the top of your house.
For example the florida based company hurricane proof systems offers a 7 inch 18 centimeter slab of concrete in three layers.
Detail 2 1 brick veneer concrete block detail at foundation 2 detail 2 2 brick veneer concrete block detail at slab edge 3 detail 2 3 brick veneer concrete block detail at low parapet with protected roof.
Because typical concrete is porous it needs to be treated with an additive such as xypex which makes the concrete waterproof.
This will give it the support it requires.
Oct 4 2017 flat concrete roof construction details detail drawings.