Construction: Build up - diagram of layers

The build-up described in this section is suitable for use on a domestic roof smaller than 50 square metres eg a garage or an extension. This is also the build-up to use on sheds, summerhouses, log cabins or garden rooms - provided that the building is strong enough (see structural requirements - loading).

For commercial roofing or for domestic roofs over 50 square metres, a slightly different build-up may be appropriate. Please contact us.

Diagrams

  1. Diagram - build up for flat roof
  2. Diagram - build up for sloping roof
  3. Diagram - wind uplift protection

Build up for flat roof


Green Roof Build-Up for a Flat roof between 1 degree and 3 degrees slope.

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Build up for sloping roof


Green roof build-up for a pitched roof between 3 degrees and 25 degrees slope.
Note, if the pitch is greater than 10 degrees, an irrigation system may be needed.

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Wind uplift protection


Using Paving Slabs as wind uplift protection.

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