Cooler Rooms, Lower Bills, Brighter Spaces.
Spectrally selective coatings to precisely target and block solar heat. We compare our technical data to the glass industry’s NFRC.org official ratings.
V-KOOL75
VK75 will give you the highest light transmission, but has less solar heat rejection than VK70.
- Visible Light Transmittance 77%
- Ultraviolet (UV) Rejection 99%
- Total Solar Energy Rejected 45.45%
- Infrared Rejection 77.14%
- Shading Coefficient 0.63
V-KOOL70
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.
- Visible Light Transmittance 70%
- Ultraviolet (UV) Rejection 99%
- Total Solar Energy Rejected 55%
- Infrared Rejection 94%
- Shading Coefficient 0.50
V-KOOL55
VK55 was developed to meet the IEC of .40 SHGC. This product has solar properties in between V-KOOL 70 and V-KOOL 40.
- Visible Light Transmittance 58%
- Ultraviolet (UV) Rejection 99%
- Total Solar Energy Rejected 59%
- Infrared Rejection 96%
- Shading Coefficient 0.47
V-KOOL40
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.
- Visible Light Transmittance 42.8%
- Ultraviolet (UV) Rejection 99%
- Total Solar Energy Rejected 64.53%
- Infrared Rejection 98.3%
- Shading Coefficient 0.42
PART 1: GENERAL
1.1 SOLAR CONTROL FILM
Solar control film applied to existing glass.
1.2 SUBMITTALS
Submit under provisions of Section 01300.
Product Data: Manufacturer’s data on products to be provided, showing physical properties and including installation instructions.
Test Data: Independent testing agency reports showing compliance with properties specified by reference to a test method.
1.3 QUALITY ASSURANCE
Installer Qualifications: Experienced in application of self-adhesive window films, with at least 10 applications of similar size and complexity, and approved by manufacturer.
Mock-Up: Before proceeding with work, apply film to one window designated by Architect.
Accepted mock-up will constitute standard for workmanship for remaining work.
Accepted mock-up may remain.
Remove and replace rejected work.
1.4 WARRANTY
Provide film manufacturer’s 10-year warranty against failure of film, including change of color, peeling, bubbling, rippling, cracking, delamination, and demetalization; include cost of material and labor for removal and reinstallation.
PART 2: PRODUCTS
2.1 MANUFACTURERS
Acceptable Manufacturer: V-KOOL, Inc., which is located at: Westland Tech Center 13805 West Rd. Suite 400; Houston, TX 77041; Toll Free Tel: 800-217-7046; Tel: 713-856-8333; Email: request info ([email protected]); Web: www.v-kool- usa.com
Substitutions: Not permitted.
Requests for substitutions will be considered in accordance with provisions of Section 01600.08871-1
2.2 MATERIALS
Solar Control Film: Southwall Technologies V-Kool VK-70 film; virtually clear self- adhesive polyester film, with following characteristics when applied to 1/8 inch (3 mm) clear float glass:
Visible Light Transmittance: 71 percent
Visible Light Reflectance: 9 percent
Ultraviolet Transmittance: less than 2 percent
Infrared Rejection: 94 percent
Ultraviolet Rejected: More than 98 percent
Shading Coefficient: 0.51
Solar Heat Gain Coefficient: 0.45
Total Solar Energy Rejected: 55 percent
Total Solar Transmittance: 36 percent
Total Solar Absorption: 33 percent
Luminous Efficacy: 1.37
Emissivity: 0.53
Film Thickness: 1.5 mils (0.04 mm)
Solar Control Film: Southwall Technologies V-Kool VK-55 film; gray tinted self- adhesive polyester film, with following characteristics when applied to 1/8 inch (3 mm) clear float glass:
Visible Light Transmittance: 58 percent
Visible Light Reflectance: 8 percent
Ultraviolet Transmittance: 1 percent
Ultraviolet Rejected: More than 99 percent
Shading Coefficient: 0.47
Solar Heat Gain Coefficient: 0.40
Total Solar Energy Rejected: 60 percent
Total Solar Transmittance: 26 percent
Total Solar Absorption: 39 percent
Luminous Efficacy: 1.23
Emissivity: 0.56
Film Thickness: 2 mils (0.05 mm)
Solar Control Film: Southwall Technologies V-Kool VK-40 film; gray tinted self- adhesive polyester film, with following characteristics when applied to 1/8 inch (3 mm) clear float glass:
Visible Light Transmittance: 46 percent
Visible Light Reflectance: 10 percent
Ultraviolet Transmittance: 1 percent
Ultraviolet Rejected: More than 99 percent
Shading Coefficient: 0.44
Solar Heat Gain Coefficient: 0.38
Total Solar Energy Rejected: 62 percent
Total Solar Transmittance: 24 percent
Total Solar Absorption: 46 percent
Luminous Efficacy: 1.05
Emissivity: 0.85
Film Thickness: 2 mils (0.05 mm)
PART 3: EXECUTION
3.1 INSTALLATION
Install in accordance with manufacturer’s instructions.
Install without bubbles, ripples, drips, dirt, cuts, tears, or gaps between film and frame.
Clean newly installed film and window frames.
Clean cleaning solutions, run-off cleaning water, and adhesive mounting solution from adjacent surfaces.
Where installed film could be damaged by subsequent construction work provide tape warning strips or barricades to prevent contact.