Fire Rated Double Glazed Units

At Glasscraft, we pride ourselves on delivering quality fire rated double glazed units designed to meet rigorous safety standards and enhance the security of buildings. With our accreditation for Level 1 Attestation (AoC Level 1), we are authorised to manufacture double glazed units with exceptional fire resistant performance. Additionally, we supply single glazing options for various fire resistant applications, ensuring comprehensive safety solutions.

Understanding Fire Resistant Glass

Fire resistant glass, also known as fire rated glass, plays a crucial role in safeguarding buildings and their occupants in the event of a fire. Different types of fire resistant glass offer varying performance characteristics, making it essential to choose the right type based on the required fire resistance and the specified minimum time performance.

Types of Fire Resistant Glass

‘E’ Rated Fire Glass

Basic fire glass, often labelled with the letter ‘E’ followed by a number (e.g., E30), provides integrity-only protection. This means that E30 glass will maintain its physical integrity for a minimum of 30 minutes, acting as a transparent barrier against flames, smoke, and hot toxic gases. Proper glazing is essential to ensure this level of protection. Common E30 glass types include GWPP clear wired glass and GWRC obscure wired glass.

‘EW’ Rated Fire Glass

‘EW’ fire rated glass offers the same integrity characteristics as ‘E’ labelled fire glass but with an added degree of insulation against radiated heat. This type of glass, which resembles clear laminated glass, turns opaque during a fire, signalling danger. The insulation value can vary by manufacturer, and it may be more aesthetically suitable for homes or installations where wired glass is not preferred. An example is EW30, a 7mm thick clear glass that we stock, which can be used in sealed units or as single glazing for relevant applications.

‘EI’ Rated Fire Glass

For the highest level of protection, ‘EI’ fire rated glass is the best choice. It offers both integrity and insulation from radiated heat for specified times. For instance, EI 30/30 glass provides 30 minutes of integrity and 30 minutes of insulation. This means the glass will remain intact and keep the non-fire side’s temperature from exceeding 25°C within 1m of the glass surface. This feature helps create escape routes that are smoke-free, flame-free, and safe from combustion. However, EI glass may react with UV light, so for external applications, it should be paired with an outer laminated product.

Importance of Correct Installation

The fire resistant performance of glass depends not only on the glass itself but also on the combination of the frame, glazing method, and glass. Incorrect glazing materials or frame compositions can compromise the integrity of the fire rated double glazed units, allowing hot gases and smoke to pass through and rendering the fire glazing ineffective. Therefore, it’s crucial to ensure all glazing is carried out according to the prescribed methods to achieve the desired protection. Detailed instructions and guidelines are available for download.

Applications and Benefits

Using fire rated double glazed units enhances building safety significantly. These units are essential for:

• Commercial Buildings: Ensuring the safety of employees and visitors.
• Residential Properties: Protecting families and homes.
• Public Spaces: Providing secure evacuation routes.

Our fire rated double glazed units are designed to meet stringent safety standards while also offering aesthetic appeal. They not only protect against fire but also provide excellent thermal performance, contributing to the overall energy efficiency of a building.

Glasscraft  is committed to providing high-quality fire rated double glazed units and fire resistant glass that meet the highest safety standards. Our range includes ‘E’, ‘EW’, and ‘EI’ rated glass options, each designed for specific fire resistance needs. With our accredited Level 1 Attestation, we ensure that every product we manufacture delivers superior fire resistant performance. For more information on our products and installation guidelines, please explore our available resources.

Trust Glasscraft for reliable and effective fire resistant glazing solutions, safeguarding your property and ensuring peace of mind.