alwitra EVALON® Solar / PV System and Roof Sealing in One

Trier (ots) - Germany's amended Energy Feed-in Directive (EnEV)
seeks a marked reduction of energy costs and CO2 emissions for new
and existing buildings. An essential contribution toward that aim can
come from resource-saving energy generating systems which use
renewable sources such as solar energy. One of these is EVALON® Solar
made by alwitra Flachdach-Systeme GmbH & Co. from Trier/Germany, the
world's first power-generating synthetic roofing membrane. In the
meantime, this roof-integrated photovoltaics system, an in-house
development, has become known beyond Germany's borders and won a
number of European innovation awards.

EVALON® Solar has proven its worth since 1999 as an intelligent
long-lasting roof sealing which is economical and at the same time
incorporates a PV (photovoltaics) system. At only 4 kg/m2, it is a
light weight and can even be installed on roofs which are close to
their load bearing capacity.

EVALON« Solar is based on EVALON®, a synthetic roofing and
waterproofing membrane which has stood the test for decades. This EVA
sheeting contains very large proportions of high-polymer solids,
which guarantees constant properties and a maximum service life. The
sealing layer is homogeneous and backed with polyester fleece on the
underside.

Power-generating UNI-SOLAR PV modules in thin film triple junction
technology are directly mounted on the roofing membrane surface and
laminated watertight. They consist of flexible solar cells measuring
240 x 340 mm, all connected in series by bypass diodes and
polymer-encapsulated on all sides for weather resistance and
transparency. The three overlaying silicon cells use different
wavelengths of sunlight, thus enhancing efficiency and ensuring
constant output. The synthetic roofing membrane and PV modules are
integrated so that EVALON®-Solar can be laid off the roll like
conventional roofing membranes by skilled roofers. No extra posts or
heavy structures such as concrete pedestals or gravel-filled troughs
are needed. Another advantage of the sophisticated system is that
connecting cables for PV modules are concealed under the roofing
membrane to protect them from the weather, which avoids perforation
of the seal. Connection boxes, DC disconnectors and inverters are
normally protected in the same way. EVALON® Solar roofing membrane is
available in four different types, according to the nominal rating:
136 Wp, 204 Wp, 272 Wp and 408 Wp. Which material and rated output is
used will depend on roof and building geometry and location. The
EVALON« Solar System from alwitra is complete with accessories such
as airtight cable ducts, terminal boxes, DC disconnectors and
inverters of different nominal ratings. On request, the inverters for
system control can be linked by plug-in-cards to a local data
network. In addition, small or large-size displays with connection to
the output counters are available.

alwitra is a leading German manufacturer of comprehensive flat
roofing systems. The wide product range comprises the roofing and
waterproofing membranes EVALON® and EVALASTIC®, the worldwide first
power-generating roofing membrane EVALON® Solar, as well as aluminium
profiles for edge trims and integrated details such as rainwater
outlets, vents and roof lights. alwitra is a member of European
Single-ply Waterproofing Association, Bruxelles, Belgium. The alwitra
flat roofing systems are so sophisticated and flexible that they can
be implemented perfectly in various climatic zones and architectural
concepts. Numerous architectural projects of high repute all around
the globe document this impressively.

More details from:

alwitra GmbH & Co.
Herr Patrick Boerder
Postfach 3950
D-54229 Trier
Phone: +49(0)651 910 2263, Fax: +49(0)651 910 2270
E-mail: marketing@alwitra.de

Originaltext: alwitra GmbH & Co.
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Fax: +49(0)221 278 9009
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