Understanding Security Screen Types and Grading

Author: CC

Jun. 14, 2023

Minerals & Metallurgy

Security screens are an effective measure to enhance the safety and security of residential and commercial properties. They provide a protective barrier against intruders, insects, and other unwanted elements while allowing airflow and visibility. When considering security screens, it's essential to understand the different types available and their grading systems. In this guide, we will explore security screen types and grading to help you make an informed decision.

 

Security Screen

Security Screen

Mesh Materials: Security screens are typically constructed using one of the following mesh materials:

 

Stainless Steel Mesh: Stainless steel mesh is highly durable and resistant to corrosion, making it suitable for outdoor applications. It offers excellent strength and is difficult to cut or penetrate. Stainless steel mesh provides good visibility and airflow while providing a high level of security.

 

Aluminum Mesh: Aluminum mesh is lightweight and also resistant to corrosion. It is commonly used in areas where aesthetics are a priority, as it can be powder-coated to match the surrounding decor. Although not as strong as stainless steel, aluminum mesh still provides a level of security while allowing for visibility and airflow.

 

Grille Designs: In addition to mesh materials, security screens may incorporate grille designs for added protection. Grilles are typically made of aluminum or steel and are positioned on the external side of the screen. They can be designed in various patterns and configurations to suit different architectural styles and preferences. Grilles enhance the strength and impact resistance of the security screen, providing an additional layer of security.

 

Knife Shear Test: The knife shear test is used to evaluate the resistance of security screens against cutting and penetration attempts. A standardized test is conducted using a knife or blade to assess the screen's ability to withstand cutting forces. Screens are graded based on their performance during the test, with higher grades indicating greater resistance to cutting. When selecting security screens, look for products that have undergone and passed the knife shear test.

 

Impact Test: The impact test assesses the strength and resistance of security screens against forceful impact, such as a kick or punch. During the test, a standardized impact force is applied to the screen to determine its ability to withstand such attacks. The screen's performance is evaluated based on its ability to resist deformation, detachment, or penetration. Screens that pass the impact test receive higher grades, indicating better resistance against forced entry.

 

Bushfire Rating: In areas prone to bushfires, security screens can also be assessed for their bushfire resistance. Bushfire rating indicates the screen's ability to withstand exposure to high temperatures and flaming debris. Screens with higher bushfire ratings provide increased protection against fire penetration, reducing the risk of embers entering the property. It's important to select security screens with the appropriate bushfire rating based on the specific requirements and regulations in your region.

 

Compliance with Standards: When choosing security screens, it is crucial to consider products that comply with relevant industry standards and regulations. In Australia, for example, security screens should meet the Australian Standard AS 5039, which specifies the requirements for security screen doors and windows. Compliance with such standards ensures that the screens have undergone rigorous testing and meet specific criteria for security and performance.

 

Warranty and Certification: Reputable manufacturers of security screens often provide warranties on their products. A warranty demonstrates the manufacturer's confidence in the quality and durability of their screens. It is advisable to choose screens that come with a warranty to ensure peace of mind and protection against any potential defects or failures. Additionally, look for certifications or endorsements from recognized industry bodies or organizations, as these further validate the quality and performance of the security screens.

 

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