Why a Detention Roof?

What is a Detention Roof?

The Detention Roof is an innovative and proven effective green roof concept. This roof structure is of added value to additional solutions to temporarily collect excess rainwater. Even when fully water saturated, the Detention Roof is capable of fully retaining and draining rainwater in a controlled manner.

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Fighting floods the green way!

How is the Detention Roof constructed?

The Detention Roof is built up of four layers. Each layer has its own unique function in the total structure.

  • Sempergreen® Sedum-mix blanket
  • Urbanscape® Green Roll
  • Storage layer HC40
  • Detention layer T5
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Water calculation for your project

Would you like to know how a Detention Roof can contribute to your project? Request a water calculation.

Request here

Highlighted Cases.

Detention Roof Rotterdam

View the results of a water calculation in Rotterdam here

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Detention Roof Manchester

View the results of a water calculation in Manchester here

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Wednesday, November 10, 2021

First Dutch Detention Roof for soft drink supplier Vrumona

The very first Detention Roof in the Netherlands was recently installed at the Vrumona office in Bunnik.

Monday, October 18, 2021

First webinar on making cities water resistant a big success

Recently, Sempergreen Academy organised its very first webinar: 'future-proof cities'

Friday, June 18, 2021

The water calculation model of a Detention Roof

The effectiveness of a Detention Roof can be calculated based on historical precipitation statistics