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Main Membrane
The main membrane is
manufactured from a Polyester fabric coated with PVC
on both sides. It can be coloured green up to a
height of three to four metres for good ball
visibility with a translucent white fabric on the
roof area to let in maximum natural light.
Thermal Insulation
A 10mm thick translucent layer of
Polyurethane insulation is placed on top of the main
membrane to provide an efficient thermal barrier to
keep in heat and conserve energy.
Protective Foil
A thin Polyurethane foil is placed on
top of the insulation layer to provide protection
for the main membrane against the steel cables,
atmospheric pollution and dirt. This can be changed
when dirty every 3 - 4 years at a minimal cost to
ensure maximum daylight passes through.
Steel Cable-Net
A net of galvanised steel rope is
laid on the sandwich of membranes providing a strong
cover that moulds the shape of the inflated
membranes and takes up most of the stresses. |
