Waterproofing sleeves

TOPWET company supplies standardly all own products with integrated bitumen and PVC sleeve waterproof to ensure 100% reliable waterproof connection.

  • 100% waterproof
  • Secret fix fixing points
  • Fully compatible with roof waterproofing system

TOPWET are the only manufacturer in the Czech Republic that offers the option to supply outlets, overflowsand vents with the sleeve manufactured from a specific manufacturers waterproofing materials. The pictures are only illustrative.

Products with custom manufacturers waterproofing sleeve are subject to the following conditions:

  • The specific waterproofing material must be supplied to TOPWET free of charge and will not be included in the cost of the manufacture of the end product
  • Size of the sleeve must be 0.5 m x 0.5 m
  • Manufacturing time will be 5 days from receipt of the waterproofing material (up to 20 pieces)
  • A setup charge will be applicable. Please consult us for further information.
  • We reserve the right to reject contaminated material and return it at the expense of the customer.

Standard sleeves


Supplied with a UV stable SBS bitumen sleeve for direct welding to the main waterproofing layer.


Supplied with a 1.5mm mPVC sleeve. All outlets can be manufactured with a specific manufacturers membrane (subject to additional cost).


Custom made sleeves


Thermoplastic (flexible) polyelefin. A minimum thickness of 1.5mm, ideally in a homogenous version, is required. We currently produce with materials following brands.


A flange for connection to liquid waterproofing applications. Customer may supply their own flange or we will provide a special flexible flange with double sided integrated layer for connection to the liquid waterproofing.


A membrane of synthetic caotchouc (natural rubber). We currently manufacture with flanges from the following brands.


Polyethylene is a vapour resistant membrane that is used mostly on roofs with a light structure.

ECB (eehylene-copolymer-bitumen)

Foil with a low content of asphalt. A mixture of polymers with oil asphalts. Tolerant to polystyrene foam. Compatible with bitumen insulation.

EVA (ethylene-vinyl-acetate)

PVC-based foil, it does not contain any potentially liquid plasticizers. Tolerant to polystyrene foam. Compatible with bitumen insulation.


Brands we cooperate with:
  • Axter
  • Bauder

  • BMI Group
  • Carlisle

  • Fatra
  • FDT

  • Elevate
  • Icopal

  • Mapei
  • Protan

  • Sarnafil
  • Schedetal

  • Sika
  • Soprema

  • VAE
  • Vedag


We offer a complete range of products for flat roof drainage systems, TOPSAFE fall protection systems and many other accessories.

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Customer service:
+420 777 717 116