Green Roof Drainage Board dimple board A washer is then placed

A washer is then placed on the wire and the wire is crimped or swedged about 3-1/2” below the top so the washer will not slide off

Petromat 4597 is nonwoven polypropylene geotextile fabric that is used as a moisture barrier and stress absorbing interlayer beneath asphalt overlay or a chip seal and exceeds ASSHTO M288 requirements for pacing fabric

The 1000T-AL enclosure is easy to set up

and gullies

Green Roof Drainage Board dimple board A washer is then placedGreen roof drainage boards are the ideal rooftop drainage solution. This mat enables drainage of excess water without the risk of clogging. Each 3D mesh drainage board provides great compressive strength and consistent water flow. This makes roof drainage uniquely able to continuously discharge water under load. The geocomposite filter material around the drainage board is a separation layer that helps roof membranes to breathe and also filters dirty