[icon name=“download“ class=““ unprefixed_class=““]Download quality criteria substrates for green roofs

[icon name=“file-pdf-o“ class=““ unprefixed_class=““] Intensive Green Roof Substrates for multi-layer construction (RAL-GZ 250/6-1) – quality criteria

[icon name=“file-pdf-o“ class=““ unprefixed_class=““] Intensive Green Roof Substrates for single-layer construction (RAL-GZ 250/6-2) – quality criteria

[icon name=“file-pdf-o“ class=““ unprefixed_class=““] Extensive Green Roof Substrates for multi-layer construction (RAL-GZ 250/6-3) – quality criteria

[icon name=“file-pdf-o“ class=““ unprefixed_class=““] Extensive Green Roof Substrates for single-layer construction (RAL-GZ 250/6-4) – quality criteria

[icon name=“file-pdf-o“ class=““ unprefixed_class=““] Granular Drainage Material (RAL-GZ 250/6-5) – quality criteria

[icon name=“file-pdf-o“ class=““ unprefixed_class=““] Requirements as to environmental relevance

[icon name=“file-pdf-o“ class=““ unprefixed_class=““] Content of Heavy Metals

[icon name=“file-pdf-o“ class=““ unprefixed_class=““] Folder RAL Quality Assurance Substrates for Green Roofs and Substrates for Tree Plantings