environments, the costs of maintaining the membrane
are extremely low.
While PTFE releases contaminants quite easily,
newer technology enhances this characteristic with
products that are topped with photocatalytic titanium
dioxide (TiO2). Featured on Sheerfill with EverClean,
which has been used on iconic stadiums around the
world, the TiO2 actively cleans the surface of the
membrane through an oxidation process in the
presence of UV in natural sunlight. The use of TiO2
energy. Sheerfill Architectural Membranes are Energy
Star certified, and maintain a solar reflectance over
75%, even after aging, with a solar reflectance index
of 95. This means daylighting and cooling costs can
be significantly reduced simultaneously.
Long-term maintenance
With PTFE-coated fiberglass membranes, the
structural backbone of the material is woven glass
cloth. Using the finest and strongest fiberglass yarns,
the custom woven fabric is engineered for structural
applications. These fabrics are unaffected by UV, and
provide a very high strength-to-weight ratio. Once
properly tensioned into place, the membranes require
little attention in the way of re-tensioning or other
periodic maintenance.
The PTFE coating that protects and helps keep
these membranes clean for improved solar
performance also ensure easy care over a long-life span.
The non-stick and non-staining surface of the
membrane virtually eliminates major maintenance.
Since there is no need to paint or otherwise maintain
the surface, except for an occasional cleaning in some
ROOFING
(Above) University of La
Verne Student Center, in
California, USA, installed
Sheerfill I in 1973
(Left) Estádio Nacional Mané
Garrincha in Brazil features
Sheerfill II with EverClean,
which was installed in 2013
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