1-What are the 6+12A+6mm Clear Tempered Insulated Glass Units?
The 6+12A+6mm Clear Tempered Insulated Glass Units, also known as 6+12A+6mm clear tempered double glazing, are high-performance insulated glass units (IGU).
Typically, they consist of two layers of 6mm clear tempered glass separated by a 12mm aluminium spacer filled with air or an inert gas like argon. This configuration enhances thermal insulation and energy efficiency while preventing condensation between the panes.
The IGU is suitable for a wide range of applications, including residential windows and commercial facades. They offer improved comfort and aesthetic value, while the durability of the tempered glass ensures long-lasting performance in various interior and exterior environments.

6+12A+6mm clear tempered insulated glass panels in the warehouse.


6+12A+6mm clear tempered insulated glass units for school projects.
2-What is the Clerestory Window?
In architecture, a clerestory window is any fenestrated (windowed) wall of a room that is carried higher than the surrounding roofs to light the interior space.
In a large building, where interior walls are far from the structure’s exterior walls, this method of lighting otherwise enclosed, windowless spaces became necessary.
Today, let’s focus on applying 6+12A+6mm Clear Tempered Insulated Glass Units in clerestory window systems.


3-Why use 6+12A+6mm Clear Tempered Insulated Glass Units for Clerestory Window?
Safety
Tempered glass is significantly stronger (5 times) than standard glass and is designed to shatter into small, blunt pieces rather than sharp shards. This safety feature is crucial for windows installed at higher elevations, reducing the risk of injury.
Energy Efficiency
The 12mm air gap (A) between the two glass panes creates an insulating barrier, reducing heat transfer and improving energy efficiency. This helps maintain comfortable indoor temperatures and can lower heating and cooling costs.
Light Weight
The lighter weight of insulated glass units (IGU) compared to traditional heavier glass reduces the overall structural load on the building. This can minimize the need for additional support structures, benefiting design and construction.
Visible Light Transmission
Clear glass in this configuration offers high VLT (over 60%), meaning a large percentage of sunlight passes through the glass. This ensures plenty of natural light enters the building while still offering thermal insulation and UV protection.
Condensation Resistance
The structure of insulated glass helps minimize condensation on the interior surface of the glass, reducing the likelihood of moisture-related issues such as mold and mildew.
Sound Insulation
The 12mm air gap between the glass panes provides sound insulation, reducing noise transmission from the outside, which is particularly beneficial in noisy environments.
In conclusion, 6+12A+6mm clear tempered insulated glass units offer a combination of energy efficiency, safety, durability, and aesthetic appeal, making them an excellent choice for clerestory windows.
4-How to produce the 6+12A+6mm Clear Tempered Insulated Glass Units?
- Glass Selection: Select premium 6mm clear float glass.
- Cutting and Grinding: Cut the 6mm clear glass sheets to the specified dimensions, and then polish the edges to achieve a smooth, refined finish.
- Tempering Process: Load the 6mm glass sheets into the tempering furnace. The glass is heated to over 600°C and then rapidly cooled using high-pressure air. This process strengthens the glass, making it more resistant to impact and temperature changes.
- Assembling and Sealing the Unit: A 12mm spacer is placed between the tempered glass sheets, sealed with butyl for airtightness, and reinforced with silicone. The gap can optionally be filled with argon for insulation before final sealing.
- Quality Control: The finished IGU undergoes inspection for any defects, such as air leaks, glass imperfections, or poor sealing.
5-Specifications:
- Product Name: Clear Tempered Insulated Glass Units (IGU)
- Glass Thickness: 6+12A+6mm, 24mm;
- Max Size: 2600x4500mm;
- Spacer Thickness: 12A; 6A, 9A, 16A are also available;
- Spacer Color: Available colors are black, silver, white, grey, and bronze.
- Shape: Flat, curved;
- Delivery Time: 15-25Days;
- Capacity:2500 SQM/Day;
- Payment Term: Bank wire transfer;
6-Applications:

Applications of clerestory window
7-Quality Control:
Shenzhen Dragon Glass, as a specialized glass manufacturer, our glass meets the following standards:
- Subject to IGCC Standard
- Subject to BS Standard
- Subject to ASTM Standard
- subject to SGCC Standard
- Many others

8-Packing and Delivery:
Shenzhen Dragon Glass, as a professional manufacturer of insulated glass, we are dedicated to providing consumers with high-quality products that meet professional standards and customer requirements.


Transform your projects with SDG’s premium insulated glass solutions! Whether you’re designing a new home or upgrading an office space, our insulated glass units will elevate your space.
For inquiries, reach out to our sales team right now!