Fire-rated plasterboard partitions achieve Fire Resistance Level (FRL) through system design — board type, layer count, screw pattern, joint treatment and insulation where specified. Substituting standard board in a rated wall voids certification. Systems are tested as assemblies; field modifications must follow engineer or certifier approved details.
- SystemBoard layers, screws, joints per tested detail
- Hold pointsPhotographic record before full concealment
- InterfacesPenetrations and slab edges per engineer detail
Hold points for inspection typically occur before joints are fully concealed — framing, board type, fasteners and initial jointing visible for photographic record. Commercial fit-outs and multi-unit corridors frequently include rated walls separating tenancies or protecting egress paths. Documentation matters for occupancy certificates.
Acoustic ratings often pair with fire ratings in apartment construction. Batts and resilient mounts are part of the system, not optional extras. Canperty installs to specification and attends inspections when builders schedule them. Retrofit fire upgrades in existing buildings need particular care — interfaces with old construction are detail-critical.
If your project includes FRL partitions, provide the specification system reference early in quoting. We align labour and materials to certified systems under AS/NZS 2589 joint treatment requirements. Eastern Melbourne commercial and unit developments regularly include rated construction — contact support@canperty.com.au with specification extracts.
One substituted board layer voids the assembly the certifier signs off.
Substituting one layer of standard board to save cost voids the assembly — certifiers compare installed build to tested system, not to generic "fire board" labels. Screw spacing, edge distance and joint band width are system-specific. Field improvisation without engineer approval is a common occupancy delay.
Interfaces between rated and non-rated walls need detail attention — abutting standard partitions, slab edges, and services penetrations through rated heads. Pre-formed penetration collars and sealant types are specified per system. We photograph interfaces before concealment.
Retrofit fire upgrades in existing buildings compound difficulty — old masonry, uneven slabs and hidden services require site-specific details. Allow time for detail approval before pricing lump sum blindly.
Acoustic-only partitions are not fire-rated unless specified — do not assume pink batts imply FRL. Read the partition type code on architectural drawings and quote accordingly.
Frequently Asked Questions
Can one layer of standard board be substituted to save cost?
No. Certifiers compare installed build to the tested system reference. One substituted layer voids the assembly certification.
What are typical hold-point records?
Framing, board type, screw spacing, edge distance and initial joint treatment photographed before full concealment per engineer detail.
Do pink batts alone mean fire rating?
Acoustic-only partitions are not fire-rated unless the partition type code on drawings specifies FRL. Read architectural partition codes before quoting.