Spring '21
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The use of the proven Water Retention<br />
Box WRB 80F helps to maintain the<br />
natural water balance by increasing<br />
evaporation and controlling the rate of<br />
surface water discharge from the roof.<br />
The design of the new system means<br />
that there are a minimal number of<br />
interruptions within the storage void<br />
thereby maximising capacity.<br />
Both products come with a base<br />
drainage and reservoir board and<br />
support frame, as well as secondary<br />
mounting rails and fixings, leaving the<br />
PV panel supplier to provide the chosen<br />
modules, inverters and associated<br />
cabling. The Optigrun Solar FKD or<br />
Solar WRB support system will be<br />
installed at the same time as the green<br />
or blue roof with the fixing of the PV<br />
panels normally being carried out prior<br />
to the planting of the vegetation.<br />
Technical and specification support<br />
Optigrun provide full technical support<br />
for this new product range. This<br />
includes the preparation of PV module<br />
and support layouts, wind loading<br />
calculations, together with general<br />
specification advice. Minimum loadings<br />
are provided to ensure that the dry<br />
weight of the vegetation build-up is<br />
sufficient to maintain the supports in<br />
position on all areas of the roof. With<br />
the Solar WRB solution, Optigrun can<br />
also provide water storage and outflow<br />
calculations to suit the requirements of<br />
the local water authority or drainage<br />
engineer for the project.<br />
Contact Optigrun:<br />
T: 0203 5899 401<br />
E: enquiries@optigreen.co.uk<br />
www.optigruen.co.uk<br />
Top: An Optigrun Biosolar<br />
roof; Left: Optigrun Solar<br />
Mounting supports.<br />
www.greenscapemag.co.uk • GREENSCAPE SPRING 2021 39
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