Fire Resistance Level (FRL) is assessed by three performance measures:- Structural Adequacy / Integrity /Insulation eg 90/90/90

6.1 FRL – 90 Mins. & External Fire Source

CSIRO Full-Scale Fire Test FS 3685/2695 has proven that the QT EcoSeries Wall System (shown right) is capable of achieving a fire resistance of 113 minutes Integrity and 115 minutes Insulation when tested in accordance with AS1530.4. Therefore for the purpose of Building Regulations in Australia, the QT EcoSeries Wall System achieved a fire resistance level (FRL) of 90/90/90. The FRL is applicable for exposure to fire source from the tested side (QT EcoSeries Wall Panel side).

The Fire Rating information for sections 6.2, 6.3, and 6.4 are based on CSIRO Opinion FCO-2310 Dated 17th February 2004.

6.2 FRL – 90 Minutes

To achieve a 90 minute Fire Rating the wall must be constructed so as the wall consists of two layers of 13mm thick fire resistance plasterboard affixed to the timber frame internally and one layer of fire resistant building foil, one layer of 50mm QT EcoSeries Wall Panel with a 5-8mm render applied with finish, affixed directly to a 20-50mm battened out cavity. This system would be capable of achieving Fire Resistance Levels of -/90/90 for Non Load Bearing walls and 90/90/90 for Load Bearing Walls designed in accordance with AS1684 for fire exposure from either direction if tested in accordance with AS1530.4

6.3 Extended Wall Areas

The Fire Resistance Levels of 60 & 90 minutes would still apply to the same system extended in height in modular form provided that the structural members are designed in accordance with the relevant structural design code for the height and load of actual installation and an approved joint system appropriate to the FRL and the width of the gap is used for the horizontal and vertical joints in a manner as detailed in the attached drawings.

Silhouette opens a whole new world of possibilities for creating a building’s personality. SilhouetteT allows architects, developers and builders to select from a range of feature details or even to create their own custom design for external claddings.

Attractive and competitively priced, Silhouette offers a fresh approach to cladding options.

Silhouette comprises of a fibre cement plank and a uPVC feature strip. Together these components clip together to obscure fixing points and to form a seamless cladding appearance of your choice.

The Silhouette exterior cladding system:

• choice of 3 individual profiles – urban, coastal and classic
• custom design profiles
• unique and stylish
• simple and quick to install – just clip in profile
• economical – no waste in laps
• lightweight material

*some sizes may not be available in all states, please check with your local BGC office for availability.