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While ordinary energy-saving films help reduce summer heat and cooling loads through their heat-reducing effect (cutting solar heat), PENJEREX also contributes to a reduction in winter coldness and warming loads through its thermal insulation properties. As such, PENJEREX is effective both in the summer and in the winter. PENJEREX also permits energy-saving repairs, is highly transparent, cuts ultraviolet rays, and prevents the scattering of broken glass fragments.
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