alwitra water spouts
Roof drainage
As emergency overflows, alwitra water spouts are part of the alwitra roof and emergency drainage system for non-used or extensive green roof areas covered with EVALON® waterproofing membranes. They can be installed horizontally through the parapet.
alwitra water spouts 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. These rectangular water spouts feature particularly high discharge rates at low ponding heights.
Overview of important downloads
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