Articles | Product
New GIB® Intertenancy Barrier Systems for Apartments
Thursday, 2 October 2025
By Gordon White
Winstone Wallboards is pleased to advise that GIB® Intertenancy Barrier Systems now includes updated non-loadbearing (NLB) intertenancy wall systems for use in multi-level apartment buildings.
These apartment systems are additional to the load bearing GIB® Intertenancy Barrier Systems which are commonly used in terraced home construction.
Apartment GIB® Intertenancy Barrier System Options
| GIB® System |
Outer Linings (Central core uses 25mm GIB Weatherline®) |
FRR | STC | Max Wall Height (mm) |
|
GBSAB 60a |
2x 13mm GIB Braceline®/Noiseline® each side | -/60/60 | 63 | 3000 |
| GBSAB 60b |
1x 13mm GIB® Standard on side 2x 13mm GIB® Standard other side |
-/60/60 | 67 | 3000 |
| GBSAB 60c | 1x 13mm GIB Braceline®/Noiseline® each side | -/60/60 | 68 | 3600 |
| GBSAB 60f (new system) | 1x 13mm GIB Fyreline® each side | -/60/60 | 64 | 3600 |
System Benefits:
¾ High Noise Control:
o GIB® Intertenancy Barrier systems for apartments achieve 63-68 STC, well in excess of the NZ Building Code minimum for intertenancy walls (clause G6).
o 60-minute FRR
o No acoustic or fire sealing is required where services penetrate wall linings, within limitations*
¾ Cost Effective
o Based on total system cost, GIB® Intertenancy Barrier Systems are some of the most cost effective in the market.
¾ Narrow Footprint
o Maximise the available tenancy area of each apartment.
¾ Easy and Fast to Install
o No specialised subtrades for installation.
o Often results in faster council inspections due to fewer problems with penetration design.
o No harmful dust is created onsite when cutting and installation GIB Barrierline® panels.
¾ Sustainability
o GIB® plasterboard includes a non-toxic natural gypsum core which can be recycled into a range of compost and agricultural products.
Illustration of GIB® H-Studs placed horizontally between stud bays to enable GIB Barrierline® sheets in wall heights up to 3600mm.
For more information on GIB® Intertenancy Barrier Systems for Apartments visit gib.co.nz/barrierline or contact the GIB® Helpline 0800 100 442.
*Refer to GIB® Intertenancy Barrier Systems Supplement for more information.
Read next
