Storage and drainage board for underground garage roof
Short Description:
The water storage and drainage board is made of high-density polyethylene (HDPE) or polypropylene (PP), which is formed by heating, pressing and shaping. It is a lightweight board that can create a drainage channel with a certain three-dimensional space support stiffness and can also store water.
Products Description
The water storage and drainage board has two comprehensive functions: water storage and drainage. The board has the characteristic of extremely high spatial stiffness, and its compressive strength is significantly better than similar products. It can withstand high compressive loads of over 400Kpa, and can also withstand extreme loads caused by mechanical compaction during the backfilling process of planting roof.
Product Features
1. Easy to construct, easy to maintain, and economical.
2. Strong load resistance and durability.
3. Can ensure that excess water is quickly drained away.
4. The water storage part can store some water.
5. Can provide sufficient water and oxygen for plant growth.
6. Lightweight and strong roof insulation function.
Application
Used for roof greening, underground roof panel greening, urban squares, golf courses, sports fields, sewage treatment plants, public building greening, square greening, and road greening projects within the park.
Construction Precautions
1. When used in flower ponds, flower slots and flower beds in gardens, conventional materials are directly replaced by water storage plates and filter geotextiles (such as filter layers composed of pottery, pebbles or shells).
2. For the greening of the hard interface such as the new and old roof or the roof of underground engineering, before laying the storage and drainage board, clean the debris on the site, set the waterproof layer according to the requirements of the design drawings, and then use cement mortar to slope, so that the surface has no obvious convex and convex, the storage and drainage board is discharged in an orderly manner, and there is no need to set a blind drainage ditch within the laying scope.
3. When it is used to make a sandwich board of a building, the storage and drainage board is laid on the roof concrete board, and a single wall is built outside the storage and drainage board, or concrete is used to protect it, so that the underground seepage water flows into the blind ditch and the water collection pit through the overhead space of the drainage board.
4. The storage and drainage board is spliced around each other, and the gap when laying is used as the lower drainage channel, and the geotextile filtering and moisturizing layer on it needs to be lapped well when laying.
5. After the storage and drainage board is laid, the next process can be carried out to lay the filter geotextile and matrix layer as soon as possible to prevent the soil, cement and yellow sand from blocking the pore or entering the water storage, sink and drainage channel of the storage and drainage board. In order to ensure that the storage and drainage board gives full play to its role, the operation board can be laid on the filter geotextile to facilitate the greening construction.
