Drainage Systems for Flat Roofs

Topwet, Partner in Reliable Roofing Solutions for distributors, roofers and installers.

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No Rust. No Ice. No Callbacks.
Topwet Built to last.

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why topwet

topwet system

traditional metal drains

ALL-CLIMATE MATERIALS

Unlike metal drains, Topwet does not rust or corrode, ensuring long-term performance even in harsh weather conditions.

EASY TO INSTALL

Whatever roofing membrane you use, that’s the sleeve.

SELF-HEATED DRAINS

No ice dams, no winter blockages—our smart, energy-efficient heating system prevents freezing and guarantees uninterrupted drainage, protecting your roof and structure year-round.

RETROFIT SOLUTIONS

Upgrading an existing roof? Topwet retrofit drains install fast  and seamlessly integrate with old and new roofing  systems—no costly overhauls, just superior drainage.

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Why Topwet Leads the Industry

Easy Installation

Integrated sleeve saves time on every job.

ALL-CLIMATE MATERIALS

Integrated sleeve saves time on every job.

SELF-HEATED DRAINS

Self-regulated de-icing solutions that prevent costly repairs.

Smart Retrofit

Upgrade existing systems seamlessly.

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Proven performance in all projects

over 20 years

expertise in draining flat roofs. Quality and reliability proven by projects.

12.6 million m²

new drained areas every year with the help of TOPWET drains.

~500,000

combinations of products and custom atypical solutions for each project.

5 continents

where we have already delivered our products and helped realize thousands of projects.

Join Our Network of Trusted Partners

Topwet seeks dedicated distributors, resellers, and installation partners across the USA. Let’s grow together bringing top-tier drainage solutions to every roof.

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