Innovation in Flat Roof Drainage

In the field of flat roof drainage, we introduce a revolutionary innovation — the TOPWET TWJ UNI universal single-wall roof outlet. Designed with the latest technological trends and materials in mind, the TWJ UNI combines flexibility, durability, and high drainage capacity.

The TWJ UNI sets a new standard in construction. It is a universal, highly efficient, and cost-effective solution for flat roof drainage in your project. In response to market requirements, we continuously develop up-to-date solutions — discover the key features of the TWJ UNI:

• Flexible base: The roof outlet is equipped with a flexible base that allows easy adaptation to various flat roof surface shapes and ensures a watertight solution even when installed directly adjacent to a vertical wall.

• Innovative materials: The roof outlet base is made of stainless steel, the leaf guard (for capturing debris and preventing pipe blockage) is made of polyamide PA6, and the pipe is made of PVC. This combination ensures resistance to weather conditions and long service life.
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• Integrated waterproofing sleeve: Unlike competing products that require screw connections, the TWJ UNI roof outlet is supplied as a single integrated unit. This significantly speeds up installation and, above all, prevents common installation errors that can lead to water ingress into the roof composition. The roof outlet is supplied with an integrated sleeve compatible with the roof waterproofing system.
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• Waterproof: Thanks to the integrated sleeve — firmly pressed between the body and the upper flange and ultrasonically welded — we guarantee the waterproof of the roof outlet. We are so confident in this solution that we provide a 5-year warranty.
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• Fast delivery and installation: From order confirmation, delivery to the installation site takes as little as three days. Thanks to the integrated sleeve, installation is fast and easy — after unpacking, the roof outlet only needs to be placed into the installation opening, anchored, and the sleeve welded.
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• Easy maintenance: The removable leaf guard allows for easy cleaning and maintenance. As the entire roof outlet does not need to be dismantled, there is no risk of reassembly errors that could cause water leakage into the roof composition.
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• Universal solution: This is a versatile product compatible with various vertical downpipe diameters. Thanks to the single-wall design, the roof outlet can also be inserted into an existing roof outlet, gutter, or pipe up to the neck, which significantly simplifies demanding refurbishment projects. The roof outlet is therefore suitable for new construction as well as for renovation of older buildings.

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Stainless steel is a thing of the past — TOPWET brings a modern and efficient solution in the form of the TWJ UNI roof outlet.

For more information, please contact us directly and discover how TWJ UNI can take your project to the next level.