GREENGRID MODULAR GREEN ROOF SYSTEM ROOF BUILD UP

GREENGRID MODULAR GREEN ROOF SYSTEM
ROOF BUILD UP

Wildflower Planting

Established wildflower planting

Extensive growing media

Filtration layer

GreenGrid Module - recycled HDPE

Ecofleece 250g separation layer

Ecoseal Environmental Roofing Membrane

Insulation

Ecovap S Vapour Barrier

Concrete

Trelleborg Elastomers Europe Trelleborg Ireland
Suite 3D, Willow House Alexandra House
Strathclyde Business Park The Sweepstakes
Bellshill, Lanarkshire ML4 3PB Ballsbridge, Dublin 4
Tel: +44 (0)1698 464620 Fax: +44 (0)1698 464621 Tel +353 (0)1 664 1731 Fax: +353 (0)1 631 9001
Email: tbselastomers@trelleborg.com Email: tbselastomers@trelleborg.com
www.greengridroofs.co.uk www.trelleborg.com www.greengridroofs.co.uk www.trelleborg.com

ALBERT HOUSE, WESTON-SUPER-MARE

Albert House Nursing Home is situated in Weston-Super-Mare
just metres from the sea. The existing building is being
renovated and as part of his remit to ensure the best possible
environment for his clients, the owner wanted to install a new
green roof. Further new build works to the development will
also have a green roof.

After looking at various systems, the owner identified the
GreenGrid system as being the ideal choice for his requirements,
since it meant that he could have easy access to his existing
older bitumen roof surface at any time and he could incorporate
new GreenGrid areas onto his new buildings as each stage of
the development progressed.

For the initial GreenGrid phase on the existing roof, the modules
arrived on site at 10.30am, delivered by HIAB truck. The
modules were hoisted onto the roof in protective wrapped cages
where they were easily removed in preparation for laying.

Since the GreenGrid modules are completely self contained
green roof units, this meant that there were no complicated
staged material deliveries to co-ordinate. For this project, there
was one vehicle, a minimal period of time to hoist and installation
began immediately.

A protective layer of geotextile fleece was laid over the existing
bitumen waterproofed surface. This protects not only the
waterproofing, but also the GreenGrid modules themselves, as
some membrane types, for example PVC, have been known to
cause cross contamination with other materials.

Once the fleece was loose laid on the surface, the modules
were simply carried to the required location and laid onto the
fleece in accordance with a module layout plan which was
provided by Trelleborg.

Tel: +44 (0)1698 464620 Fax: +44 (0)1698 464621 Tel +353 (0)1 664 1731 Fax: +353 (0)1 631 9001

ALBERT HOUSE, WESTON-SUPER-MARE

GreenGrid is a simple system to install and large areas can
be covered in a short space of time. The flexibility of the
system meant that the client had freedom to choose his level
of maintenance, the design and the budget. Should a decision
be made at any time to change the plants, the design or the
area of the roof covered, this is easily achieved.

On this occasion, the project was completed at 1.15pm, which
meant that the time taken from arrival on site to departure
was just under 3 hours. This ensured that there was little or
no disturbance caused to the nursing home residents.

Once the modules were placed, the client had an instant
green roof. GreenGrid modules are grown and matured in
the nursery prior to delivery, which means that an established
effect is provided immediately, as can be seen here. The
planting is deep and lush and some sedum modules are even
in flower. The 100mm depth of growing media ensures that
the sedum has enough sustenance to encourage it to grow
and thrive for many years to come.

Other green roof systems can take up to two years to become
established and much greater maintenance and supervision
is often required.

Although the modules were initially visible, after a few weeks
the sedum merged together to form a complete carpet, and
the client still has complete peace of mind knowing that he
can still reach his waterproofing layer easily. Should his
waterproofing eventually need replaced, he can still retain his
green investment by moving the modules off-site, renewing
the waterproofing and then returning the GreenGrid modules
back to their location.

GreenGrid the Natural Choice For Your Roof

Tel: +44 (0)1698 464620 Fax: +44 (0)1698 464621 Tel +353 (0)1 664 1731 Fax: +353 (0)1 631 9001

GREENGRID MODULAR GREEN ROOF SYSTEM ROOF BUILD UP

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GREENGRID MODULAR GREEN ROOF SYSTEM ROOF BUILD UP