Double and Triple Glazed Glass: An Advanced Solution for Insulation and Beauty
Double and triple glazed glasses, as one of the key products in the glass manufacturing industry, play an important role in improving quality of life and optimizing energy consumption in buildings. These products, consisting of two or more layers of glass with spaces filled with inert gases like argon or krypton, are highly popular in Iran and worldwide due to their thermal and acoustic insulation features. As a glass manufacturer, we produce double and multi-glazed glasses with national and international standards using advanced technologies and high-quality raw materials. In this report, relying on credible Iranian sources, we examine the features, benefits, applications, and technical specifications of these products to provide localized, original, and accurate content.
Definition and Structure
- Double-Glazed Glass: This product consists of two parallel glass layers separated by an aluminum or thermal spacer. The space between the glasses, usually 6 to 20 mm, is filled with an inert gas like argon or krypton to improve thermal and acoustic insulation. The edges of the glass are sealed with polysulfide or silicone adhesives to prevent moisture penetration.
- Multi-Glazed Glass: This type of glass includes three or four glass layers separated by additional spacers. This structure significantly enhances insulation and is suitable for areas with harsh climatic conditions.
- Glass Selection
- Cutting and Washing
- Spacer Installation
- Gas Injection
- Sealing
- Quality Testing
Selecting float, tempered, laminated, or Low-E glasses with specified thickness and dimensions.
Glasses are precisely cut and washed to be free of any contamination.
Aluminum or thermal spacer containing moisture-absorbing material (silica gel) is placed between the glass layers.
The space between the glasses is filled with argon or krypton gas (at least 75% purity).
Edges are sealed with polysulfide or silicone adhesives for airtightness.
Final products undergo tests for insulation, strength, and transparency.
Technical Specifications
Double and multi-glazed glasses are produced to strict standards to ensure optimal performance and safety. The table below shows the key technical specifications of these products:
Glass Thickness
4, 6, 8, 10, 12 millimeters (per layer); laminated up to 40 millimeters
Space Between Layers
6 to 20 millimeters (12 millimeters most common)
Filling Gas
Argon (at least 75%), Krypton (for higher insulation)
Heat Transfer Coefficient (U-Value)
1.1 to 2.8 W/m²K (depending on glass type and gas)
Sound Reduction
Up to 45 decibels (depending on thickness and glass type)
Standard Dimensions
Up to 320 × 220 centimeters
Custom Dimensions
Up to 600 × 300 centimeters (at higher cost)
Glass Types
Float, tempered, laminated, reflective, Low-E, colored, sandblasted
Weight
2.49375 kilograms per square meter per millimeter thickness
Features and Benefits
Double and multi-glazed glasses have numerous features and benefits due to their advanced structure and high-quality materials, which are discussed below:
- Superior Thermal Insulation
- Acoustic Insulation
- Safety and Security
- Design Variety
- Moisture Resistance
- Property Value Increase
- Environmental Sustainability
The space filled with argon or krypton gas reduces heat transfer. For example, triple-glazed glass, compared to double-glazed, has a lower heat transfer coefficient (U-Value) (1.1 versus 2.8 W/m²K), leading to significant savings in heating and cooling costs.
These glasses can reduce sound up to 45 decibels, which is ideal for buildings located in high-traffic urban areas like Tehran or Mashhad.
Using tempered or laminated glasses in the structure increases impact resistance. Laminated glass, even after breaking, maintains its integrity due to the PVB layer.
Possibility of using float, colored, reflective, Low-E (low-emissivity) or sandblasted glasses to match modern and traditional Iranian architectural styles.
Spacers containing moisture-absorbing material (silica gel) and precise sealing prevent moisture penetration and fogging between layers.
Sleek and modern appearance increases the value and appeal of residential and commercial buildings.
Reducing energy consumption and glass recyclability make these products an environmentally friendly option.
Ordering and Installation Process
- Ordering: Customers must specify color, thickness, dimensions, and required fittings. On-site measurement services are available.
- Production Time: Standard production takes 7 working days, with an expedited option (1 day) available.
- Installation: Must be performed by professionals to prevent damage. The process includes precise measurement, pre-tempering cutting, and installation with appropriate fittings.
- Pricing: Calculated based on thickness, color, and area (square meter × unit price). For example, in 2024, the price of standard tempered glass ranges from 700,000 to 1,500,000 IRR per square meter.
Applications
Double and multi-glazed glasses are used in a wide range of projects due to their insulation and aesthetic features:
Residential Buildings
UPVC and aluminum windows, entrance doors, interior partitions, and balconies.
Commercial Buildings
Glass facades (curtain walls), store showcases, office partitions, and conference halls.
Public Spaces
Museums, galleries, and hospitals to create bright and quiet spaces.
Special Applications
Aquariums, shower cabins, and even side and rear vehicle windows.
Industrial Projects
Environments requiring high thermal and acoustic insulation, such as factories and warehouses.
Key Tips for Choosing Double and Multi-Glazed Glass
- Appropriate Thickness: For residential applications, 4 to 6 mm per layer is sufficient, but for commercial or industrial uses, 10 mm or more is recommended.
- Glass Type: Low-E glasses for better thermal insulation, laminated for safety.
- Quality Standards: Ensure possession of Iranian and international standard certificates.
- Expert Consultation: Contact our experts for selecting the best type of glass and fittings.