GIB Best Practise Series - Rigid Air Barrier Systems

7 Things to consider when installing GIB WEATHERLINE® – Rigid Air Barrier Systems 

01. Weather Exposure 

• Once installed, GIB Weatherline® sheets and tapes can be exposed to exterior weather for up to 6 months before cladding installation. 
• Prior to installation, store GIB Weatherline® sheets in a dry area.

02. Sheet Installation 

• GIB Weatherline® sheets must be installed with a ventilated cavity system.
• Overhang bottom plate by at least 15mm on concrete slabs.
• Maintain clearance to paved/unprotected ground per NZS 3604 and E2/AS1.
• Follow specified spacing and fixing patterns for the chosen system from the GIB Weatherline® Installation Manual.

03. Fasteners 

• Use only GIB Weatherline® ceramic-coated screws when fixing sheets.
  Fastener sizes:
  – Timber: 41mm x 6g or 63mm x 8g
  – Steel: 32mm x 8g or 47mm x 8g

04. GIB Weatherline® Tapes

• Use GIB Weatherline® Flashing & Sill Tapes to cover sheet joins, fastener heads & to seal around window and door openings.
• Tape sizes:
  – Flashing Tapes: 30mm, 60mm, 100mm, 150mm 
   and 200mm
  – Sill Tapes: 150mm & 200mm

05. GIB Weatherline® Tape Sequencing

• Where possible, seal horizontal sheet joints first then 
   vertical joints.
• Apply 30mm tape over mid-sheet vertical and top/ 
   bottom plate fasteners.

06. Penetrations

• Use Proclima Kaflex or Roflex seals for pipe and 
   general penetrations

07. Need help estimating GIB Weatherline® tapes and 
screws? 

• Download the GIB Weatherline® Rigid Air Barrier 
  Systems Order Form at:
  www.gib.co.nz/gib-plasterboard-order-forms

The GIB Weatherline® Rigid Air Barrier Systems Manual contains all the information you’ll need to correctly install GIB Weatherline®