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1. solar zone
Hanita Coatings RCA Ltd | Kibbutz Hanita, 22885, Israel | T: +972 4 985 9919
solarzone@hanitaenergy.com | www.hanitaenergy.com | www.hanitacoatings.com
Project Task
Bank Leumi is one of the largest and oldest banks in
Israel, with branches located in nearly every town. As
part of its environmental responsibility policy, Leumi
has spearheaded a program integrating recycling, water
saving, HVAC retrofits and smart lighting across the
company.
At a local exhibition, the engineer leading the project
learnt about the contribution of solar control window film
to energy efficiency. Al-Sorag, Hanita’s distributor and
installation arm in Israel, offered to stage an experiment
to prove the efficiency of SolarZone window film. The
bank’s engineering department suggested installing film
at Gan Yavne, a branch which particularly suffered from
overheating and excessive AC costs. Al-Sorag applied
Silver 20 Xtra to the glass façade, and the bank closely
logged energy consumption for a period of three months
over the summer, to compare results with the energy
figures for the same period of the previous year.
Solution
The extremely dark, single pane signature glazing used
to brand most of Bank Leumi’s branches meant that only
an exterior film would prevent thermal crack, and ensure
maximum efficiency. Al-Sorag recommended installing
SolarZone Silver 20 Xtra, an exterior film delivering
exceptional levels of heat and glare rejection of over
80%.
Outcome
The comparative energy consumption figures showed a
decrease in the order of 20% in HVAC energy consumption
following the installation of the Silver Xtra film. Staff
at the bank enthusiastically reported a real increase in
levels of comfort, with less glare and more even interior
temperatures.
The bank’s engineering department recommended
extending the high-efficiency window film project to other
branches in an effort to reduce heat build-up and ease
HVAC energy use, particularly at peak hours. Over the
last few months, 22 additional branches of Bank Leumi
have been enjoying the energy savings and increased
comfort provided by Hanita’s exterior films.
National bank takes
opportunity to upgrade
energy efficiency of glazing
Film Type: SolarZone exterior films
Silver 20 Xtra
Titan 20 Xtra
Titan 50 Xtra
Dealer: Al-Sorag
Israel, nationwide | Bank Leumi Branches
23+branches
fitted
~70m2
installed
in each
location
~20%reduction in
HVAC energy
usage
20
25
30
35
Friday Saturday Sunday
Temperature˚C
Gan Yavne Branch Interior Temperature Comparison
Without Film With Film
6.5˚C difference
Bank Leumi's Kiriat Malachi branch with SolarZone Titan 20 Xtra film installed