Double-layer roof for buildings

Abstract

The invention discloses a storied house two-layer roofing floor slab, which is characterized in that the floor slab comprises a roofing floor slab, a roofing surrounding edge, a roofing floor slab protective layer and a drainage pipe; the roofing surrounding edge is arranged around the roofing floor slab; the roofing floor slab protective layer is positioned above the roofing floor slab; and a hollow position formed between the roofing floor slab protective layer and the roofing floor slab is communicated with the drainage pipe. The drainage pipe comprises a main body and an elbow, wherein the main body is embedded in a column in advance; the elbow is embedded in the roofing floor slab in advance; and a piston head is arranged at a water outlet of the elbow. Grids built by precast concrete plates or disused bricks are laid on the roofing floor slab. The roofing floor slab and the roofing surrounding edge are cast at one stroke. The roofing floor slab protective layer is formed throughthe following steps of laying non-dismantling insertion members on the grids of the roofing floor slab, laying a plurality of steel bars from head to tail on the insertion members and then pouring concrete with certain thickness for moulding. Clay is laid on the roofing floor slab protective layer. The roofing floor slab protective layer is provided with water seepage holes and a drainage pipe well head. The storied house two-layer roofing floor slab has the advantages of low maintenance rate, long service life, vegetation roofing, good appearance, environmental protection and thermal insulation.

Description

technical field [0001] The invention belongs to the field of construction, and in particular relates to a double-layer sky floor slab of a building. Background technique [0002] The floor slab of the existing building has the following disadvantages: the sky of the existing building is generally added with a heat insulation layer after pouring the sky floor. Because the sky floor is not thick enough and the area is large, it is exposed to the sun and rain, expands with heat and contracts with cold, it ages faster than the floor floor, has a shorter life span, and is prone to cracks. Contents of the invention [0003] The object of the present invention is to provide a double-layer roof slab of a building with low maintenance rate, long service life, vegetated roof, beautiful appearance and environmental protection, and heat preservation function. [0004] The object of the present invention is achieved through the following technical solutions. [0005] A double-layer s...

AI Technical Summary

Problems solved by technology

Due to the lack of thickness and large area of ​​the sky floor, it is exposed to the sun and rain, expands with heat and contracts with cold, it ages faster than the floor floor, has a shorter lifespan, and is prone to cracks

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