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alwitra GmbH
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Alwitra - Rainwater Outlets

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The rainfall in our latitudes places high demands on the waterproofing and statics of flat roofs. To ensure that everything runs smoothly, we offer a suitable system in the form of alwitra roof drains. Available in vertical and horizontal versions, for cold roofs, inverted roofs and classic warm roofs.

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As part of the alwitra roof and emergency drainage system, alwitra rainwater outlets provide the most effective solution for any flat roof. Our experts will be glad to assist you with your individual planning at any time.

  • 24/7: our free-of-charge digital drainage tool.
  • Safe: meets the special requirements for rainwater and emergency outlets for flat roofs
  • Efficient: optimised inlet geometry providing both a high discharge rate and a low ponding height
  • Stable: made of impact-resistant polypropylene (PP)
  • Something for everything: whether for EVALON or for EVALASTIC
  • Flexible: professional, reliable flashing against vapour control sheets