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Roof drainage

From half-round guttering that integrates seamlessly to residential, commercial and industrial buildings, to siphonic roof drainage systems for flat roofs and complex roof areas, we offer a wide range of solutions to capture rainwater.

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Roof drainage systems

OSMA RoundLine Guttering System

OSMA RoundLine Guttering System

When to use

RoundLine is a domestic half-round system that can serve roof areas up to a maximum of 163m2 with one downpipe.

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OSMA SquareLine Guttering System

OSMA SquareLine Guttering System

When to use

SquareLine is a square profiled system for domestic applications serving roof areas up to a maximum of 178m2 with one downpipe.

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OSMA StormLine Guttering System

OSMA StormLine Guttering System

When to use

StormLine combines its attractive appearance with ability to handle large volumes of water. For roof areas up to a maximum of 254m2.

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OSMA DeepLine Guttering System

OSMA DeepLine Guttering System

When to use

DeepLine is a semi-elliptical profiled system for domestic applications where a high capacity system is required - serving roof areas up to a maximum of 299m2 with one downpipe.

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OSMA SuperLine Guttering System

OSMA SuperLine Guttering System

When to use

SuperLine is a half-round system offering an excellent volume removal rate that can serve roof areas up to a maximum of 250m2 with one downpipe.

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