000. Part No.
901311_D150_01002. Detail
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003. Description of Detail
Good practice requires that rainwater outlets are designed to remain free from obstructions, for example gravel or vegetation. These outlets should be accessible at all times. A footwide gravel border should be installed around all roof penetrations to the thickness of the growing medium. Separation of the materials is achieved by means of a gravel board such as KLS. This board also allows rainwater to drain easily to the outlets.