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Reflectance, Transmittance, and Lighting Options
Light Reflectance Value (LRV)
Light Reflectance Value (LRV) is a measure of visible and usable light that is reflected from a surface when illuminated by a light source.
- White tin ceiling tiles have an LRV of around 82%
- White mineral fiber ceiling tiles have an LRV of around 80%
|Collection||Color / Finish||Reflectance||Test Results|
|Better Than Tin||Bronze||11.43%||Download Report|
|Faux Wood||Sandal Wood||47.62%||Download Report|
|Caramel Wood||18.93%||Download Report|
|Cherry Wood||6.67%||Download Report|
Light transmittance is a measure of visible and usable light that passes through a surface when illuminated by a light source.
|Collection||Color / Finish||Transmittance||Test Results|
|Better Than Tin||Bronze||NA||NA|
|Faux Wood||Sandal Wood||NA||NA|
Grid-mounted (can) lighting is a great illumination option. Choose a tile design that has sufficient flat area in the middle to accommodate the light opening and trim ring, and choose fixtures that come with grid-suspension brackets so that the weight of the light is supported by your T-bar and not by your tile. Coffered ceiling tiles may require some additional steps. Contact us for more information.
Ceilume's Feather-Light Ceiling Tiles are available in translucent vinyl in addition to our opaque colors and finishes. Translucent ceiling tiles can be installed directly under lighting fixtures, or throughout the entirety of your grid for a fully-illuminated ceiling.
For best results, install your translucent ceiling tiles at least 6" below your lighting fixtures, and use your tiles in conjunction with AcoustoTherm® Backpanels.
Luminous Ceilings Approved for Use beneath Fire Sprinklers
Light fixtures and fire sprinklers can now be located above ceilings. This seemingly topsy-turvy arrangement minimizes visual clutter on a ceiling and reduces construction cost, yet allows for effective illumination and fire protection. The breakthrough is due to recent approval of our ceiling panels by IAPMO Uniform Evaluation Service and other building product evaluation services. Our Feather-Light Ceiling Panels are made of translucent thermoplastic material that, when exposed to heat from a fire, softens, sags, and drops out of standard ceiling suspension grids. "Drop-out ceilings" comply with National Fire Protection Association (NFPA) 13 - Standard for the Installation of Sprinkler Systems.
Luminous ceilings are increasingly used with LEDs to create an overhead surface that transmits colored light. They are also used beneath fluorescent lamps and daylight sources to create and diffuse, glare-free illumination. The molded, bas-relief panels catch light to create highlights and shadows that add depth to and animate ceilings.
Installing sprinklers above luminous ceilings eliminates shadows cast by penetrating sprinklers. Sprinklers are also protected against abuse and tampering, and construction costs are reduced. In 2014 Ceilume commissioned a construction cost study and found that drop-out ceilings reduce costs by up to three dollars a square foot in commercial installations. Sprinkler layout can be optimized, trade coordination is simplified, and non-appearance grade sprinklers can be used. Additional savings are achieved by using economical strip light fixtures above a ceiling instead of costly luminaires.
Panels are Class A rated for surface burning characteristics and can be used in sprinklered and non-sprinklered buildings. Ceilume offers a white paper, Drop-Out Ceiling Panels - A Discussion On Their Use With Fire Sprinklers, to help designers and code officials understand how to use drop-out panels.