Quick conclusion
The light transmittance ratio indicates the portion of visible light passing through the material under test conditions; it does not directly indicate temperature.in the structure. Heat also depends on solar radiation, heat transfer coefficient, absorption, the area of the light strip, ventilation, roof orientation, and internal activities.
Three conceptsoften mistaken
| Concept | Meaning |
|---|---|
| Light transmission | The visible light passing through the panel according to the test method. |
| Heat transmission | Heat flow through the structure due to temperature difference and material properties. |
| Shading coefficient/total solar energy | Solar radiation transmission; the correct testing method and configuration are required. |
How color affects experience
Light-colored sheets generally give a feeling of more light; dark-colored sheets may reduce glare but also alter the light color. The decision should be based on actual samples and lighting requirements, not on the color name on the screen.
How to read a specification table
Check the test standards, sample thickness, color, conditions, and units. Do not use results from flat sheets for corrugated sheets or from one color for another. If the table lacks test methods or sample identification, it should only be considered as reference information.
design of light-transmitting strip for factory
Arrange the strips evenly to reduce light-dark contrast; avoid placing directly above areas prone to glare. Combine ventilation and shading solutions if heat load is an issue. After installation, illumination should be measured in the working area to adjust operation.
Data required
- Material test sheet matches material, color, and thickness.
- Light transmission ratio along with test method.
- Thermal data suitable for design objectives.
- Limitations of use, UV, warranty, and installation instructions.
See more Overview of plastic roofing sheets and skylight panels Maxlight or send documentation for project-based consultation.
View the product, material, and specification table at guide to choosing Composite/FRP translucent roofing sheets.
Contact Hưng Thịnh Phát for consultation on specifications and pricing at the factory.
