Roof Drainage

Vertical, 100 or 125mm, with rigid polyurethane body and EVALON^® flange, complete with screw ring and flat grating

• Made of highly impact-resistant polypropylene (PP)
• Pipes DN 125 (OD 125 mm) can be connected directly, pipes DN 100 (OD 110 mm) using the included reducer 125/110
• A combined leaf guard/gravel stop is included

Horizontal, rigid polyurethane body with EVALON^® flange, 125mm, complete with screw ring and flat grating

• Made of highly impact-resistant polypropylene (PP) 
• On classic warm roofs, all standard vapour barriers can be flashed directly.
• Corresponding extension pieces are available in various lengths, depending on the thermal insulation thickness

The two-part system consisting of a custom-fit refurbishment plate.

• The plate is centrically arranged over the existing rainwater outlet and flashed against the existing waterproofing without backflow.
• The drainage element itself is then simply inserted into the refurbishment plate.
• Flashing against the new waterproofing is carried out either with connecting flange and screw ring (refurbishment rainwater outlet 125) or with factory fitted connecting flange (refurbishment rainwater outlet 75, 110).

Mandatory emergency drainage systems for flat roofs with internal drainage.

• This applies also to refurbishment. alwitra^® rainwater outlets and extension pieces have been designed to meet this requirement
• Available in different versions varying only in ponding height: • ponding height of 20 - 40 mm for emergency outlet socket 40 • ponding height of 20 - 100 mm for emergency outlet socket 100
• Can be converted into emergency outlets with high performance and a specified ponding height. 

Due to the flangeless design, alwitra^® water spouts are particularly suitable for difficult and/or confined installation conditions.

• They are made of rigid PVC and, depending on the version, are equipped either with a welding flange for EVALON^®® waterproofing membranes or with a factory-fitted flashing collar made of EVALON^®®.
• Along with the alwitra^® water spouts for pipes with various diameters, rectangular versions are also available

The height-adjustable alwitra^® terrace grate made of stainless aluminium

• The grate is installed in place of the leaf guard / gravel stop, ensuring drainage at paving and waterproofing level.
• Made from aluminium, with locating ring made of polypropylene (PP)