Chengdu waterproof and drainage board 12 (coiled material type)

  Product details: the waterproof drainage board is made of high-density polyethylene (HDPE) or polypropylene (PP) through hot melt extrusion
It is a new environmental protection building material that can not only create a drainage channel with a certain three-dimensional space support stiffness, but also prevent plant roots from damaging the waterproof layer

Product advantages:
Comparison of advantages of waterproof and drainage boards

Content   name	Gravel, cobble, shell, ceramsite, etc	Waterproof and drainage board
Load on roof	large	light
Use location	Garage roof, underground garage, three-dimensional greening and tunnel seepage prevention	Garage roof, underground garage, three-dimensional greening and tunnel seepage prevention
Plant root penetration resistance	No,	Prevent plant roots from penetrating the floor
deadweight	It is heavy and increases the weight of the floor	Self light (about 600g/ ㎡)
carrying capacity	High, about 2-15 tons / ㎡	Height, more than 20t / ㎡
Thermal insulation	difference	good
Drainage performance	difference	good
Construction quantity	Large quantities and high cost	Small quantities, low cost and simple maintenance
service life	50 years	Good durability, can be used for more than 50 years

 
Construction guidance:
1
Clean up the garbage on the paving site and level it with cement
There is no obvious concave convex on the site
2-5&permil is required for the outdoor garage roof and roof garden; Slope making;
2
The roof greening and outdoor garage roof greening can be equipped with porous seepage pipes, so that the water discharged from the drainage board can be centrally discharged to the nearby sewer or the nearby urban sewer

3
The basement ground is impermeable, and the terrace is overhead on the foundation, that is, a layer of drainage plate is made before the terrace is made, the round convex platform is downward, and blind ditches are left around, so that the groundwater can not come up
The seepage naturally flows into the surrounding blind ditches through the space of the drainage plate, and then into the sump through the blind ditches

4
The basement wall is waterproof, and the drainage board can be laid on the main wall surface of the building, and the protruding platform faces the main wall surface
A layer of single wall is built outside the drainage board or steel mesh powder cement is used to protect the drainage board  , Make the space of the water seepage plate outside the wall flow downward into the blind ditch to the sump

5
When laying the drainage board in any section, attention must be paid to: do not let the soil, cement, yellow sand and other garbage enter the front space of the drainage board to ensure that the space of the drainage board is unblocked

6
When the drainage board is laid, protective measures shall be taken as much as possible
When the drainage board is laid on the layer or outdoor garage, backfill shall be done as soon as possible to prevent the high wind from disordering the drainage board and affecting the laying quality
The basement and inner wall waterproofing shall be protected as soon as possible to prevent the drainage board from being damaged by people or objects

7
The backfill is clayey soil
It is ideal to lay 3-5cm yellow sand on the geotextile, which is conducive to the water filtration of the geotextile; If the backfill is a kind of nutrient soil or light soil, there is no need to lay another layer of yellow sand
The soil itself is very loose and easy to filter water

8
During the laying of the drainage board, the 1-2 fulcrum can be overlapped with the right side of the side, or the two bottom plates can be touched flush, and the geotextile is used to overlap the top
As long as no soil enters the drainage channel of the drainage board, the drainage can be kept smooth

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Founded in 2001, Chengdu Jinwen Yijia Building Materials Technology Co
, Ltd
is mainly engaged in: Chengdu drainage board, Chengdu ecological bag and Chengdu grass planting grid The company always adheres to the business principle that business is humane, and develops both sales and service: deliver goods to customers' homes, and even send technicians to the construction site to provide customers with paving technical support 24-hour hotline: 4000282488, welcome to contact us and serve you wholeheartedly! Website of relevant products of the company: http://www
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com