Tempered glass and laminated safety glass: Which type should be used in construction projects?

Tempered glass and laminated safety glass represent two distinct building material technologies in terms of manufacturing processes and technical characteristics. Tempered glass is created through a heat treatment process at 600–700°C to increase its hardness by 4–10 times that of ordinary glass. Meanwhile, laminated safety glass is a composite structure consisting of two or more layers of glass bonded together with a PVB film through a heating process at 140°C.

This fundamental difference creates distinct advantages: Tempered glass possesses a compressive strength of 248 MPa and a load-bearing capacity of 19,3 – 28,4 MPa. Laminated safety glass, on the other hand, offers superior shatterproofing thanks to its PVB layer, blocks 99% of UV rays, and provides effective sound insulation of 35 – 42dB.

Another key difference between the two materials is that when tempered glass breaks, it shatters into small, non-sharp granules. In contrast, the fragments of laminated safety glass remain firmly attached to the PVB film, without scattering.

The optimal application range for these two types of glass depends on the specific requirements of the project: Tempered glass is suitable for projects prioritizing high durability, good load-bearing capacity, and a moderate budget. Conversely, laminated safety glass is the optimal choice for projects that prioritize absolute safety, sound insulation (reducing sound by 35-42dB compared to 40-60% more effective than single-glazed glass), and UV protection.

What is tempered glass?

Tempered glass is a type of glass that has been treated with a heat tempering process to increase its durability and impact resistance., meeting the stringent requirements of modern construction. In the manufacturing process, the glass is heated to 600-700°C, then rapidly cooled, creating a layer of compressive stress on the surface and tensile stress in the core. As a result, the glass has a hardness 4-10 times greater than ordinary glass, making it safer in the event of an impact.

The material is available in thicknesses from 5 to 19mm to suit various interior and exterior applications. It achieves a compressive strength of approximately 248 MPa (25mm³ sample) and tensile strength/load capacity ranging from 19,3 to 28,4 MPa. Notably, tempered glass can withstand temperature differences of up to 200°C without cracking.

What is laminated safety glass?

Laminated safety glass is a special type of glass composed of two or more flat glass sheets bonded together with a durable, flexible PVB film. After bonding, the entire structure is subjected to a heating process at approximately 1400°C to create absolute adhesion. Thanks to this film, in the event of a strong impact causing the glass to shatter, the fragments will adhere tightly to the surface without scattering, minimizing the risk of injury.

This type of glass can block up to 99% of UV rays, protecting users' health, minimizing harmful effects from sunlight, and maintaining the color durability of interior furnishings. Its structure consists of two layers of glass combined with a PVB layer, resulting in noise reduction of 35-42 dB.

What is the difference between tempered glass and safety glass?

In the field of glass materials for construction and interior/exterior design, tempered glass and safety glass are two popular choices. Both possess good durability, high strength, and ensure a certain level of safety, but they are manufactured using different processes. This results in the following differences:

Should you choose tempered glass or safety glass?

Tempered glass suitable for the required application. high durability, good impact resistance and modern aesthetic requirements such as glass doors, partitions, railings, or facades. This type of glass possesses 4-10 times the hardness of ordinary glass and is less prone to deformation upon impact. When broken, it shatters into many small, non-sharp fragments, helping to minimize injury. This is the optimal choice for projects prioritizing durability and load-bearing capacity.

Safety glass has the ability to hold together shattered pieces upon impact, thereby reducing risk and effectively preventing entry. At the same time, safety glass also has the ability to... Soundproof, UV protection and flexible color customization. So, if the project focuses on certain elements... safe, anti-theft And for applications requiring it to not shatter upon strong impact, safety glass is the superior choice.

Questions related to tempered glass and laminated safety glass.

Which material provides better sound insulation?

In terms of sound insulation, safety glass offers significantly superior performance compared to tempered glass. Thanks to its PVB film layer, which absorbs and eliminates sound vibrations, safety glass reduces noise by 35-42dB, 40-60% higher than tempered glass of the same thickness.

Which type of glass is more durable?

Tempered glass is a type of glass with superior strength due to being heat-treated at 600-700°C, creating high compressive stress on the surface, making the product durable and resistant to breakage. This type of glass can withstand compression up to 248 MPa and loads in the range of 19,3-28,4 MPa. Therefore, tempered glass is the preferred choice for projects requiring high durability such as doors, railings, staircases, facades, or locations subject to strong impacts.

How do you maintain tempered glass and laminated safety glass?

When maintaining tempered glass and laminated safety glass, users should note the following four points:

1. Cleaning recurrent 1-2 times/week Use a soft cloth or fine sponge with clean water. If using a glass cleaning solution, choose a specialized product with a neutral pH. (6 - 8) To avoid damaging the surface.
2. Perform thorough cleaning. once or twice a month Use a specialized cleaning solution mixed with warm water (around 30-40°C) to remove stubborn dust, mineral deposits, and fingerprints. A squeegee can also be used to keep the surface sparkling clean.
3. Immediately treat stains such as oil, ink, mud, or water stains to prevent them from forming. For stubborn stains, use a suitable cleaning product according to the manufacturer's instructions.
4. Minimize strong impacts or dragging hard objects across the glass surface, as strong impacts can crack or damage the glass structure.
   

Which company provides reliable consulting services for construction project completion solutions?

If you are looking for a reputable company to advise you on optimal construction solutions, Kosmos Warehouse is the top choice. With over 10 years of experience, Kosmos possesses a team of highly knowledgeable professionals, ready to support customers from consultation to selecting the most suitable solution in terms of cost, quality, and aesthetics.

In particular, Kosmos now offers a line of mirror-finish bamboo charcoal wall panels. – An effective alternative to tempered glass and safety glass in interior decorative wall projects. The product is made from WPC composite combined with bamboo charcoal powder and resin, with a mirror-coated surface that reflects 70-80% of light. The material weighs only 5-5,5 kg/m², making installation simple and quick.

For detailed advice on construction completion solutions, please contact Kosmos's consultation hotline. Phone: 0932 067 388 .

When choosing between tempered glass and laminated safety glass, the final decision should be based on the specific requirements of the project. If strength, durability, and modern aesthetics are prioritized, tempered glass is the optimal choice. Conversely, if the project requires a high level of safety, user protection, and intrusion resistance, laminated safety glass will be most effective.