Type of works: modular green roof system
A sedum green roof had been specified for this built up membrane flat roof. The roofing contractor, who had previously sub-contracted this type of installation to specialist landscapers, was keen to do the work himself.
A modular system was chosen for a number of factors:
Firstly the area was not completed. The crane was still erected and the roof had to be part fitted before the crane was taken away.
Secondly, parts of the building were occupied and the project manager was concerned that as little mess and disruption as possible was caused.
Finally, the operatives had not installed green roof systems before, and wanted to be sure the application was correct.
Two men could carry the trays quickly and easily without any of the soil substrate dropping out of the trays. The simple interlocking cup system made placement an easy process.
A third man was making good the edges, ensuring each section of sedum butted up to the next and laying additional soil substrate at the joints to allow the sedum to intertwine properly.
The team of three men were able to install over 100m2 in one day. Modular sedum green roofs help to take the mystery out of green roof installation, so non-specialists can complete all parts of their projects without having to resort to often very expensive expert landscaping contractors.
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