Origal^®: Aluminum gravel strips and boxes

Aluminium gravel-protection strips 

Aluminium gravel-protection strips form a boundary for rainwater drainage between zones of gravel and planting on flat roofs.

Made in raw aluminium 10/10, delivered with a length of 2 ml.
Can also be custom-made.

Aluminium gravel-protection strips assets

• Junction : The self-covering gravel-protection strips between them allows installation. These are unique to ensure they interlock without obstructing holes. 
• Stability : The bend is designed to have a better stability of the strips.

Aluminium gravel-protection boxes (gravel stop)

Gravel-protection box with aluminium grill to prevent gravel entering rainwater outlets or pipes.

Gravel-protection box assets

• Delivered flat packed but fast and easy to assemble.
• Conforms to DTU 43.1 (NFP84-204-1-1 of november 2004) and DTU 43.3 P1-1 (NFP84-206-1-1 of april 2008)

Product assembly demonstrated in video

Here is a video showing the product and its easy installation

System

Orignal gravel-protection strips are made of raw aluminium 10/10 and are delivered with a length of 2 ml. In addition to the three standard dimensions, it can also be custom-made. 

Specific solutions are also available :

• with an openwork flange, for a fixing done by connecting two bitumen sealing membranes.
• with an openwork bend, for a fixing done by bridging on a synthetic membrane.

Holes are in accordance with DTU 43.1 (NFP84-204) and DTU 60.11 (NFP40-202).

Connection

The strips between the the self-covering gravel-protection strips act as connectors. These are unique to ensure no holes are obstructed. 

Stability

The bend is slightly closed, in order to have a better stability of the strips.

System

Gravel-protection boxes are made of aluminium 10/10, and in accordance with :

• DTU 43.1 (NFP84-204-1-1 of november 2004
• DTU 43.3 P1-1 (NFP84-206-1-1 of april 2008)

Space saving :

 

Delivered flat. Fast and easy to assemble.

1. Flat box
2. Flanges folding
3. Downstands with flaps folding
4. Downstands without flaps folding
5. Flaps folding

Origal gravel-protection strip's full flange reduces effects on any vegetalised areas on a roof. 

Origal gravel-protection strip's stop end has a bitumen sealing.

Origal gravel-protection strip with openwork bend allows connection to a synthetic membrane.

Usage of the Origal gravel-protection box with the Neepal aluminium rainwater outlet Neepal