High Rise Internal Walls

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Variations on Hebel Intertenancy and Common Area Walls using Polyester Insulation

Fire Rating Performance

Fire Resistance Level (FRL) Rating of Hebel Walls

The maximum wall heights in Table 2.4 and 2.5 are taken from CSIRO Fire Opinions FCO-2073 issued on the 6th August 2010 and FCO-2327 issued on the 20th January 2009. These values are only applicable tothe Hebel Intertenancy walls outlined in this Design Guide. Fire performance of other wall configurations have been taken from fire opinions FCO-2073, FCO-2327, FCO-0825, FAR-2586.2 and 24648-01.

System Variations

Variations to the Hebel walls will not affect the fire-resistance levels. However these variations need to be approved by the project fire consultant or project certifier. The possible variations to the systems include:

1. Changing the type of insulation between S4, S3, S2, Glasswool and Rockwool;
2. Substituting the furring channel with steel studs;
3. Using the furring channel or steel stud on both faces;
4. Insulation on both sides of the Hebel PowerPanel;
5. The incorporation of gaps between the steel stud(51mm, 64mm, 76mm, 92mm deep steel studs) and the CSR Hebel panel of up to 100mm maximum; or;
6. Cavity widths of up to 250mm between panels in doubles panel walls.

Fire Protection of Penetrations

Penetrations through a Hebel wall to accommodate pipework, electrical cabling or ductwork will have to be protected (fire stop), to prevent the spread of fire through the penetration. The penetration can be protected with proprietary products, such as:

• fire rated sealants;
• fire collars and intumescent wraps;
• fire rated mortars;
• fire rated pillows;
• fire rated switch boxes.

Hebel recommends contacting a reputable manufacturer of fire protection systems to obtain the appropriate solution.

Intertenancy and Common Walls

Service Walls

Hebel Intertenancy walls with two layers of Hebel Panels

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