GreenRoof66007 23 .pdf
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A typical Optigreen roof comprises three essential elements:
(1) a drainage layer, (2) a filter layer, and (3) a growing medium/
vegetation layer or greening. There are two basic types of
greening: Extensive and Intensive, with variations to suit
Optigreen Extensive roofs are lightweight with a relatively shallow
growing medium, economical, require minimal care with low maintenance
plants (eg, sedum, herbs and grasses), and are accessed for routine
Optigreen Intensive roofs have a greater depth of growing medium and
can support a wider variety of planting, including shrubs and small trees.
Roof gardens and public spaces can be created, even vehicular areas.
Optigreen Extensive systems
I Economical roofs – a low cost option with a relatively lightweight
I Lightweight roofs – low system build-up depth.
I Nature or biodiverse roofs – with a wide range of local plant species
to encourage bees, butterflies, etc.
I Pitched roofs – a perfect system for greening roofs with a pitch
of up to 45°.
I Brown roofs – with a shallow growing medium, suitable for selfseeding and planting.
Optigreen Intensive systems
I Garden and landscape roofs – provide leisure and
recreational space for building occupants, with
shrub beds, bushes, lawns, water features, seating
areas, etc. Complete roof landscapes can be
I Public roofs – variants suitable for pedestrian and
vehicular access. Paths, pedestrian plazas and other
forms of hard landscaping can be planned in
tandem with roof planting. Public roofs can also be
designed to combine roof greening with roads and
vehicle parking areas.
A complete advice and systems package
Full design and specification advice is available, and all substrate
materials and planting can be supplied. There are special
Optigreen solutions to prevent wind uplift, and even options to
incorporate solar panels.
Although all Optigreen roofs are designed to accumulate and store
water with relatively little impact on roof loading, intensive roof
greening requires additional irrigation. A variety of irrigation
solutions are available, designed specifically to optimise the
consumption of water.
YOUR ROOFING AND WATERPROOFING PARTNER
T: 0845 1948727