Plastic Storage and Drainage Board For Hanging Gardens and Roof gardens   Plastic inter layer Board

The storage and drainage plates is a type of Green Roof Systems which are drained by waffled plastic sheets. Water is retained within pockets on the upper sides of the drainage plates; excess water spills over the edges of the plates and is carried off the roof.

Green roof systems of this type are drained by waffled plastic sheets called “drainage plates”. Water is retained within pockets on the upper sides of the drainage plates; excess water spills over the edges of the plates and is carried off the roof. The plastic storage and drainage plates are made from HDPE(high-density polyethylene), using high pressure to inject plastic to form hole-lump-shaped shell, with stereo space and support level; in the top of the shell, covering with non-woven as filtering level for water percolation, water storage and water drainage.

    Plastic Storage and Drainage Board For Hanging Gardens and Roof gardens   Plastic inter layer Board

1.Since drainage plates are lightweight and easy to install, they have become the most popular drainage system for green roofs. Drainage plates are recommended for roofs with slopes less than 1:12.

2.A synthetic protection/water-storage fabric weighing 500g/m2 (15 oz/yd2) is applied over the waterproofing or root-barrier membrane. Drainage plates are laid over the fabric with the joints staggered. 

3.Three thicknesses of drainage plates are available to meet the drainage and water storage requirements of almost any green roof: 25mm (1” thickness) is standard for thin extensive roofs, 50mm (1.5”) is recommended for enhanced water storage and drainage on thicker extensive roofs and semi-intensive roofs, and 60mm (2.5”) is available for maximum water retention on intensive roofs. 

4.A 200g/m2 (6 oz/yd2) separation fabric is applied over the drainage plates and soil is spread over the fabric.

Hongxiang Greening Solution now supply standard size 50mm thickness drainage plates for customers from more than 60 countries,Which suitable for enhanced water storage and maximum water retenion on intensive roofs.

we also provide non-woven fabric and root barrier  with variety thickness for your choice. If you have interests, pls feel free to contact us!

 Plastic Storage and Drainage Board For Hanging Gardens and Roof gardens   Plastic inter layer Board