NFRC is a non-profit organizationorganization that administers the only uniform, independent rating and labeling system for the energy performance of windows, doors, skylights, and attachment products. V-KOOL, through Southwall Technologies, has had certain V-KOOL films certified by the NFRC.
VK70 offers the best balance between heat rejection and daylight transmission. VK70 will allow 70% of the light to transmit while rejecting 55% of the heat. It is virtually clear and will maintain the architectural integrity
VK 55 was developed to meet the IEC of .40 SHGC. This product has solar properties in between V-KOOL 70 and V-KOOL 40.
VK40 is the solution when you are trying to reduce some glare while maximizing your heat control. VK40 will allow 43% light transmission while rejecting 65% of the heat.
Other Enhanced Films
VK75 will give you the highest light transmission, but has less solar heat rejection than VK70.
VK65 offers comparable heat rejection to VK75 with slightly less light transmission.
V-Kool LT Films
We offer a few conventional films for applications where glare and budget are an issue. Please call for details on these products.