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Window Film Philadelphia is an authorized V-Kool installer serving Philadelphia, the Main Line, South Jersey, and surrounding suburbs. VK75, VK70, VK55, and VK40 spectrally selective film series — NFRC-tested, lifetime residential warranty, professionally installed.
V-Kool window film in Philadelphia is available through Window Film Philadelphia across the VK75, VK70, VK55, and VK40 spectrally selective series. V-Kool's approach to solar control is different from every ceramic or dyed film on the market: where ceramic films absorb infrared heat and make the glass warm, V-Kool's multi-layer sputtered films reflect it. The glass stays cooler. Less secondary heat radiates into the room. The VK70 flagship — with 70% VLT, 55% TSER, and 94% infrared rejection — has been chosen for the AIA Headquarters in Washington D.C. and the Guggenheim Museum in New York.
V-Kool window tint Philadelphia properties receive is manufactured to NFRC standards and backed by a lifetime residential warranty and a 10-year commercial warranty — the full Eastman warranty infrastructure that comes with every authorized installation. The VK series has been tested independently and its performance data is compared to NFRC.org official ratings, giving specifiers, architects, and property owners the apples-to-apples comparison data they need.
Philadelphia's authorized V-Kool installer — VK70, VK55, VK40 spectrally selective, lifetime residential warranty
Every solar control film reduces heat — the question is how. Dyed and ceramic films absorb infrared radiation, which makes the glass itself hot. V-Kool's multi-layer spectrally selective construction, as detailed at V-Kool USA, targets the infrared portion of sunlight far more than visible light — so heat is rejected while the room stays bright. The VK70 flagship delivers 70% VLT, 55% TSER, and 94% infrared rejection at only ~9% exterior reflectance. As a V-Kool film installer for Philadelphia commercial and residential properties, Window Film Philadelphia specifies from the full VK series based on each building's orientation, glazing type, and performance targets.
V-Kool window film in Philadelphia is installed by our authorized team across the VK75, VK70, VK55, and VK40 spectrally selective series — plus residential and commercial applications for each. All specs are NFRC-tested. Every installation is backed by lifetime residential or 10-year commercial warranty.
V-KOOL 70 V-KOOL 70 (VK70) is the flagship of the V-Kool architectural film series and the most widely specified product in the lineup. At 70% visible light transmission, it reads as nearly clear glass from inside and outside — yet it rejects 55% of total solar energy and blocks 94% of infrared radiation. The exterior reflectance is approximately 9%, which means there is no mirror-building effect and no visible tint from the street. These numbers are measured against NFRC.org official ratings, not marketing approximations.
The specification history of VK70 tells its own story: the American Institute of Architects headquarters in Washington D.C. evaluated multiple film brands and selected VK70. The Guggenheim Museum in New York integrated V-Kool into its skylight retrofit to preserve daylight while reducing solar gain and UV exposure on priceless artwork. Exxon specified VK70 for new stores facing high solar load. For Philadelphia Class A office towers, premium residences, and institutional buildings where aesthetics are non-negotiable, VK70 is the product that performs without showing.
VLT 70% · TSER 55% · IR 94% · UV 99% · SC 0.50 · Ext. Reflectance ~9%. Specs on 3mm clear single-pane glass per NFRC guidelines. Source: v-kool-usa.com
V-KOOL 75 V-KOOL 75 (VK75) delivers the highest visible light transmission in the V-Kool series — 77% VLT — making it the right specification when preserving maximum daylight is the primary requirement and some reduction in solar heat rejection is acceptable. For Philadelphia's historic district properties in Society Hill, Old City, and Chestnut Hill, where preservation guidelines restrict anything that visibly changes the glass, VK75 is effectively invisible while still providing meaningful UV and infrared protection.
VK75 is also the specification for north-facing glass and interior spaces where daylighting is already limited and any reduction in visible light would materially worsen the occupant experience. With 77.14% infrared rejection and 99% UV block, VK75 still outperforms most ceramic solar control films on heat rejection while maintaining a level of clarity that reads as untreated glass from any practical viewing distance.
VLT 77% · TSER 45.45% · IR 77.14% · UV 99% · SC 0.63. Specs on 3mm clear single-pane glass per NFRC guidelines. Source: v-kool-usa.com
V-KOOL 55 V-KOOL 55 (VK55) sits between VK70 and VK40 in the series — with 58% VLT, 59% TSER, and 96% infrared rejection, it was specifically developed to meet the International Energy Conservation Code (IECC) requirement of a Solar Heat Gain Coefficient of 0.40. For Philadelphia commercial renovation projects that must demonstrate energy code compliance, VK55 provides the specifiable performance threshold while maintaining a significantly higher VLT than darker tint films at the same SHGC.
For south- and west-facing Philadelphia office glass where the afternoon solar load is the primary driver and moderate privacy is a secondary benefit, VK55 delivers measurably better heat rejection than VK70 while preserving a comfortable, daylit interior. The 58% visible light transmission reads as lightly tinted glass rather than dark solar film, which keeps the building's exterior appearance consistent with Philadelphia's architectural standards for commercial glazing on most streets.
VLT 58% · TSER 59% · IR 96% · UV 99% · SC 0.47. Meets IECC SHGC .40 requirement. Specs on 3mm clear single-pane glass per NFRC guidelines. Source: v-kool-usa.com
V-KOOL 40 V-KOOL 40 (VK40) is the performance leader in the V-Kool series — with 64.53% TSER and 98.3% infrared rejection, it delivers the most aggressive heat control in the lineup while maintaining 42.8% visible light transmission. At that VLT level, the glass reads as lightly tinted rather than dark, preserving meaningful natural light even as it blocks nearly all of the infrared heat spectrum. VK40 is the specification when glare reduction and maximum heat control are the primary drivers and some visible tinting is acceptable.
For Philadelphia's west-facing commercial glass — the Category 1 solar load exposure that creates afternoon hotspots on Center City office floors from noon onward — VK40 resolves the heat problem more completely than any other product in the series. For residential applications in rowhomes facing a western or southern orientation where afternoon sun makes rooms uncomfortable even after VK70 installation, VK40 provides the additional performance margin that closes the gap.
VLT 42.8% · TSER 64.53% · IR 98.3% · UV 99% · SC 0.42. Maximum heat + glare control in the VK series. Specs on 3mm clear single-pane glass per NFRC guidelines. Source: v-kool-usa.com
Four V-Kool films — all spectrally selective, all NFRC-tested. The difference is VLT, TSER, and where each fits Philadelphia's building types.
| Series | Best For | VLT | Key Performance | UV Block | Warranty Manufacturer |
|---|---|---|---|---|---|
| FlagshipV-KOOL 70 | Class A offices, premium residences, design-sensitive facades | 70% | 55% TSER · 94% IR · ~9% ext. reflectance | 99% | Lifetime res / 10yr comm |
| High ClarityV-KOOL 75 | Historic glass, preservation districts, max-daylight interiors | 77% | 45% TSER · 77% IR · near-invisible | 99% | Lifetime res / 10yr comm |
| BalancedV-KOOL 55 | Energy code compliance (SHGC 0.40), south/west commercial facades | 58% | 59% TSER · 96% IR · SC 0.47 | 99% | Lifetime res / 10yr comm |
| Max PerformanceV-KOOL 40 | West-facing high-load glass, glare control priority, rowhome heat | 42.8% | 64.5% TSER · 98.3% IR · SC 0.42 | 99% | Lifetime res / 10yr comm |
Source: V-Kool USA product specifications (v-kool-usa.com), NFRC-comparable ratings on 3mm single-pane clear glass. Warranty: lifetime residential / 10-year commercial.
Every V-Kool film is spectrally selective and NFRC-tested. The difference is where each fits — from historic preservation glass to west-facing high-load exposures. Click any film for full specs and Philadelphia application details.
Chosen by AIA HQ and the Guggenheim. 70% VLT, 55% TSER, 94% IR rejection, ~9% exterior reflectance.
Highest VLT in the series at 77%. For Philadelphia historic preservation and clarity-critical applications.
Meets IECC SHGC 0.40. 58% VLT with 59% TSER and 96% IR rejection for code-compliant commercial projects.
Performance leader at 42.8% VLT, 64.5% TSER, 98.3% IR rejection. For Philadelphia's highest-load west-facing glass.
A Rittenhouse Square commercial building chose V-Kool window film in Philadelphia — specifically VK70 — to address a chronic afternoon heat problem on its three west-facing floors — a combination of Philadelphia's hot summer sun and floor-to-ceiling glass that made those floors uncomfortable from noon onward and overworked the building's HVAC system.
The building management's constraint was clear: the glass facade was a design feature, and any film solution that visibly changed the appearance of the glass from the exterior was off the table. The building's ownership had turned down previous proposals for standard solar tint films precisely because the exterior reflectance or visible tint was unacceptable. V-Kool VK70 — with its 70% VLT, 9% exterior reflectance, and 55% TSER — met that constraint while delivering the heat rejection performance the building needed.
Window Film Philadelphia installed VK70 across three floors in three days. Post-installation, the west-facing floors went from being the most-complained-about spaces in the building to some of the most desirable — occupants reported a genuine comfort difference in afternoon hours. The building's facilities team noted a measurable reduction in cooling demand on the treated floors. The glass looks exactly as it did before the installation.
Get a free V-Kool assessment for your building“We specified V-Kool VK70 for our entire west-facing facade at our Center City headquarters. The glass still looks completely clear from inside and outside, but the afternoon heat problem we had on three floors is completely resolved. Our HVAC team noticed the difference in cooling load within the first billing cycle.”
Facilities directors, architects, and property owners across Philadelphia and the surrounding region.
★★★★★
"We specified V-Kool VK70 for our entire west-facing facade at our Center City headquarters. The glass still looks completely clear from inside and outside, but the afternoon heat problem we had on three floors is completely resolved. Our HVAC team noticed the difference in cooling load within the first billing cycle."
Marcus D.
Facilities Director, Center City Commercial Building
★★★★★
"I was doing research for a client project and chose V-Kool specifically for the XIR sputtered technology — the reflective approach to heat rejection rather than absorptive ceramic. The difference is real: the glass itself stays cool, not warm to the touch like it was before film."
Diane H.
Architect, Philadelphia Design Firm
★★★★★
"Window Film Philadelphia installed V-Kool VK70 on our Rittenhouse residential building — both solar control on the upper floors and safety film on the ground level. The result is exactly what we needed: transparent, professional, and effective. No interference with the building's Wi-Fi infrastructure either."
Richard P.
Property Developer, Rittenhouse Square
★★★★★
"Our historic Society Hill townhouse had south-facing windows that were causing serious fade damage to our hardwood floors and period furniture. V-Kool film stopped it completely. You genuinely cannot see the film is there — which was our main concern from the start."
Catherine W.
Homeowner, Society Hill
★★★★★
"We manage a twelve-floor office building in Center City and the west elevation was a constant tenant complaint. After V-Kool VK70 went on, those floors went from the hardest to lease to some of the most requested. The ROI on the installation was faster than we expected."
Thomas B.
Portfolio Manager, Center City Office
★★★★★
"The V-Kool Safety and Security film on our ground-floor retail windows gives us peace of mind I didn't know I was missing. The glass still looks completely clear but it holds together after impact — exactly what we needed on a South Street storefront."
Melissa K.
Retail Owner, South Street
Honest answers about V-Kool window film in Philadelphia from specialists with over 15 years of installation experience.
Talk to a SpecialistV-Kool is a premium window film brand owned by Eastman. For architectural applications, the V-Kool lineup includes VK75, VK70, VK55, and VK40 — all spectrally selective, all NFRC-tested, and all built on V-Kool's multi-layer sputtered technology. VK70 is the flagship; VK75 maximizes daylight; VK55 meets SHGC .40 code; VK40 delivers maximum heat and glare control.
XIR® is V-Kool's proprietary sputtering technology. Where dyed and ceramic films absorb infrared heat — making the glass itself hot — V-Kool's sputtered films reflect infrared radiation rather than absorbing it. This means the glass stays cooler and less secondary radiant heat enters the room. The sputtering process deposits microscopic layers of precious metals onto the film at V-Kool's ISO-9001 certified plant in Dresden, Germany.
V-KOOL 70 is the flagship of the series — 70% VLT, 55% TSER, 94% IR rejection, ~9% exterior reflectance. It's the film chosen by the AIA headquarters and the Guggenheim Museum. For Philadelphia commercial buildings and premium residences where both clarity and comfort are required, VK70 is the standard recommendation.
V-Kool's V-Kool spectrally selective films are non-metallic in their visible-spectrum construction, which minimizes signal interference. This is a meaningful advantage for dense Philadelphia commercial floors with extensive wireless infrastructure — Center City tech tenants and financial services firms specifically benefit from this characteristic compared to conventional metallic reflective films.
Philadelphia's IECC Zone 4A climate creates a genuine year-round demand for solar control. In summer, V-Kool VK70 reduces solar heat gain on south- and west-facing glass. In winter, the low-emissivity properties of V-Kool's sputtered films help retain interior heat. That combination makes V-Kool a strong year-round specification for Philadelphia commercial and residential properties.
V-Kool films have earned the Skin Cancer Foundation's Seal of Recommendation for UV protection performance. All V-Kool product lines block 99%+ of harmful UV radiation that causes fading in flooring, furniture, artwork, and merchandise. For Philadelphia properties with south-facing glass exposure and valuable interior finishes, V-Kool's UV block is a meaningful asset protection benefit.
VK75 (77% VLT) is the choice when maximum daylight is the priority and historic preservation matters. VK70 (70% VLT) is the flagship — most buildings choose this first. VK55 (58% VLT) is specified when energy code compliance (SHGC .40) is required or when west-facing load needs more aggressive control. VK40 (42.8% VLT) delivers the maximum TSER of 64.5% for the highest heat and glare loads. Window Film Philadelphia will recommend the right film after assessing your glass orientation and building type.
Yes. VK70 and VK75 have approximately 9% exterior reflectance — well below the threshold that most HOA guidelines and Philadelphia historic preservation rules restrict. The near-neutral appearance of both films means they read as clear glass from the street, making them appropriate for Society Hill, Old City, Chestnut Hill, and other neighborhoods with appearance restrictions on window treatments.
Yes. V-Kool films are applied to the interior glass surface of existing windows — no glass replacement required. Window Film Philadelphia assesses glass type, orientation, and performance goals before recommending a product series to ensure compatibility, including insulated glass units common in Center City commercial buildings.
V-Kool window films are manufactured at an ISO-9001 certified plant in Dresden, Germany — one of a small number of facilities worldwide capable of the precision multi-layer sputtering process that XIR® technology requires. The sputtering technology was developed in Silicon Valley, USA. V-Kool is owned by Eastman Chemical Company, the same parent as LLumar and Vista.
