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Can custom coated glass from Foshan really provide heat insulation and thermal retention? What are the differences in effects between different colors?

Release time:

Feb 14,2025

Coated glass indeed has the function of thermal insulation, among which Low-E glass (low-emissivity coated glass) is a type of coated glass that achieves its function by coating multiple layers of metal or other compound films on the glass surface. The following is a detailed analysis of the thermal insulation principle of coated glass and the differences in effects of different coated glasses.

1. Principle of thermal insulation of coated glass

Coated glass can reflect far-infrared radiation from sunlight, reducing heat energy entering indoors (in summer) or reflecting far-infrared thermal radiation indoors, preventing heat loss (in winter), thus regulating indoor temperature and achieving thermal insulation. This type of glass is widely used in the construction field, including residential buildings, office buildings, shopping malls, etc., and is also used in the automotive field to create a more comfortable environment for passengers.

2. Differences in effects of different coated glasses

Distinguished by color or light transmittance:

High-transmittance coated glass: highest light transmittance, best lighting effect, but relatively weak thermal insulation performance. Suitable for low floors with poor lighting conditions or places that require high lighting.

Medium-transmittance coated glass: moderate light transmittance, can ensure a certain lighting effect while providing good thermal insulation performance. Suitable for most floors or places that require a balance between lighting and thermal insulation performance.

Low-transmittance coated glass: lowest light transmittance, strongest shading ability, providing better privacy protection and thermal insulation performance. Suitable for places that require high privacy protection or have high thermal insulation performance requirements.

Distinguished by the number of film layers:

Single-silver coated glass: has basic thermal insulation performance, suitable for general construction and industrial fields.

Double-silver coated glass: compared to single-silver coated glass, it has better thermal insulation performance and energy-saving effects. Suitable for buildings with high thermal insulation performance requirements, such as high-end office buildings, shopping malls, etc.

Triple-silver coated glass: further enhances thermal insulation performance based on double-silver coated glass, ensuring long-lasting and good thermal insulation effects for buildings. Usually used in places with extremely high thermal insulation performance requirements.

3. Precautions

When installing coated glass, attention should be paid to the position of the film layer. In southern regions or places that emphasize thermal insulation effects, it is recommended to place the coated layer on the outside of the insulated glass; in northern regions or places that emphasize heat preservation effects, it is recommended to place the coated layer on the inside of the insulated glass.

Although coated glass has many advantages, its cost is relatively high, especially for double-silver and triple-silver products. In addition, in some special environments, such as high-humidity kitchens and bathrooms, it may not be suitable to install coated glass.

In summary, coated glass indeed has the function of thermal insulation, and different colors or light transmittance, as well as the number of film layers, have differences in thermal insulation performance. When choosing coated glass, comprehensive consideration should be given based on specific needs and site conditions.

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