Flat roof drainage
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Flat roof drainage Rainwater outlets Emergency outlets Water spouts

alwitra waterproofing system Flat roof drainage systems are part of the proven alwitra waterproofing system. This system comprises: Waterproofing membranes Roof edge trim profiles incl. colour coating Wall capping profiles incl. colour coating 4 Wall flashing profiles incl. colour coating Coated metal sheets Colour coating Snow guard profiles Daylight systems Flat roof drainage Flat roof vents 11 Paving slab supports

alwitra rainwater and emergency outlets alwitra rainwater outlet S 125/110 with extension piece

Ready for the next deluge the new alwitra roof drainage system The new alwitra roof drainage system age systems on low slope roofs, the requirements of various standards and guidelines are generally binding. In particular, DIN EN 12056 and DIN 1986-100 include specific requirements for roof drainage and emergency drainage systems. The new alwitra roof drainage system is The new alwitra roof drainage system is • adapted to the specific requirements for rainwater and emergency outlets of low slope roofs (EnEV, DIN 1986-100) • extremely efficient: Optimised inlet geometry providing both a high...

Dimensioning principles for roof drainage systems General notes (excerpts from relevant standards • At concrete constructed roofs with designed and statically place, whether it is adequately sized and properly arranged. proven rainwater retention, there is no need for an emergency Roof drainage: • Dimensioning of roof drainage systems has to be done by way • Gravel or green roof, usually, means less rainwater outlets, of hydraulic calculation. A medium rain event, the so called the number of emergency outlets or overflows, however, will local design rainfall (r(5,5))* is used as a...

alwitra rainwater outlet vertical (S 125/110 and SH 125/110 for DN 125 and DN 100) The thermally insulated alwitra rainwater outlet S (vertical) waterproof connection is easily established between the roof made of highly impact resistant polypropylene (PP) provides waterproofing and the rainwater outlet. the connection between vertical drainage pipes and the waterproofing at cold or inverted roofs. Thus, pipes DN 125 (OD 125 mm) On classic warm roofs, instead of the roof waterproofing, all can be connected directly, pipes DN 100 (OD 110 mm) using standard vapour barriers can be flashed in...

alwitra rainwater outlet horizontal (W 75/110 and WH 75/110 for DN 70 and DN 100 as well as W 125 and WH 125 for DN 125) The thermally insulated alwitra rainwater outlet W (horizontal) connecting flange, a reliable and long-term waterproof connec- made of highly impact resistant polypropylene (PP) provides the tion is easily established between the roof waterproofing and connection between horizontally installed drainage pipes and the waterproofing on cold or inverted roofs. It is available in two different sizes: On classic warm roofs, instead of the roof waterproofing, all standard vapour...

alwitra rainwater outlets are optionally available with electrical heating (230 V AC). The letter „H“ in the name indicates the heating feature of the outlet. At the factory, the heating system is integrated into the rainwater outlets, consisting of a silicone heating mat protected against overheating by a built-in temperature switch. Connection to 230 V AC power supply is carried out with a thermostat without using transformers or the like. For controlling, an energy-saving thermostat with an outdoor temperature sensor is used, activating the heating only when required. This is done at two...

alwitra extension pieces 200, 400, SL The alwitra extension pieces are used for bridging thermal alwitra extension pieces are made of highly impact resistant insulation layers of warm roofs and are available in three polypropylene (PP). As with alwitra rainwater outlets, flashing lengths, depending on the thermal insulation layer thickness: against the roof waterproofing is carried out with a special screw ring. alwitra extension pieces are compatible with all alwitra rainwater outlets and provide backflow-proof connection by simply inserting them into the rainwater outlet. When used in for...

alwitra emergency outlets According to the requirements stipulated in DIN 1986-100, outlet socket 40“ can be achieved by cutting to length on site. emergency drainage systems are mandatory for flat roofs with To this end, the extension pieces are marked (grooves) at internal drainage. This applies also to refurbishment. intervals of 10 mm. The „emergency outlet socket 100“ can be adjusted to a ponding height of 20 - 100 mm. To meet these requirements, alwitra rainwater outlets and extension pieces are designed as to be easily converted into For the SL version, pieces are delivered...

alwitra terrace grate Combined with the height-adjustable alwitra terrace grate made of stainless aluminium, all alwitra rainwater outlets can be installed on used roof areas with waterproofing (e.g. roof terraces). The grate is installed in place of the leaf guard/gravel stop, ensuring drainage at paving and waterproofing level. By turning the lift ring, the installation height (overall height of the paving above the waterproofing) is adjustable from approx. 67 - 90 mm in steps of 3 mm. For installation heights > 90 mm, additional lift rings are optionally available, providing for...

Accessories for alwitra rainwater outlets Numerous optional accessories are available to complement the drainage system of alwitra rainwater/emergency outlets. alwitra extension piece UKD 200 and UKD 400 for inverted roofs alwitra reducers/adapters alwitra base plate/refurbishment plate alwitra bellows alwitra screwing aid for secure installation of the screw ring alwitra connecting flange

alwitra refurbishment rainwater outlets In the case of refurbishment with additional thermal insulation, where it is not possible to replace existing outlets, it is recommended to install alwitra refurbishment rainwater outlets. Using the custom-fit refurbishment plate (DN 125 made of PP, DN 100 and DN 70 made of aluminium), which is flashed against the existing waterproofing without back flow, reliable installation of the refurbishment piece is guaranteed. Flashing against the new waterproofing is carried out either with connecting flange and screw ring (refurbishment rainwater outlet 125)...