RigidRAP
IBS RigidRAP® is an 8mm OSB3 product that has been laminated with an approved building paper to give your house dual protection from the weather during your building process. It has been manufactured specifically for New Zealand, for use as a bracing element and/or rigid air barrier. IBS RigidRAP® is the only dual layer rigid air barrier system available in New Zealand and comes laminated with a BRANZ appraised watertight wall underlay.
As designers, builders and homeowners move towards more sustainable and durable materials and systems, the benefits of IBS RigidRAP® are becoming more relevant.
The product is lightweight, easy to cut nail or screw, and can be exposed to the weather for up to 90 days.
IBS RigidRAP® replaces the traditional building paper wrap to above all support a healthier, stronger home.
Uses:
- Internal or external wall bracing
- External wall wrap – rigid air barrier
- Temporary weather cladding


• Reduced building time and rigid structure
• Provides rapid moisture protection of the building
• Allows for interior construction to continue
• Provides a greater level of site security
• Reduces structural timber movement
• Provides both structural support
• Provides weather tightness and an airtight building or home
• CodeMark Certified (CM70035)
• Hard-wearing exposure tested by SCION New Zealand (90 days exposure)
• Meets all requirements of the New Zealand Building Code (NZBC)
Below are some of the taping options available for RigidRAP
Thermakraft Premium Joining Tape 75mm wide x 23m long
Thermaflash Flashing Tape Letter
Thermaflash Flashing Tape BRANZ
Hydro Tape 75mm (Masons)
Mason 40 Below Platinum and Flex
Super-Stick (Marshalls Innovations)
3M™ All Weather Flashing Tape 8067 (3M™)
DriStud Cool Tape (DriStud)
TESCON EXTORA (Pro Clima)
EUROBAND S 60 (Frame Protection)
SIGA Tape Manual
SIGA BRANZ
SIGA Letter
How to install RigidRAP?
You can download the installation guide on this page.
Which way do the sheets need to be installed?
All sheets should be installed vertically for bracing. Sheets can be installed horizontally if they are not used as a bracing panel.
How much gap do I need to leave between sheets?
You need to leave a 2mm gap around all sides of the sheets for expansion and contraction. This means 4mm between the sheets on all sides. Hence the sheet width of 1196mm.
How do I join at mid-floors?
You must use a Z flashing if joining RigidRAP at mid floor level. For all other horizontal joins we recommend 150mm flashing tape.
What tapes do I use?
A list of all tapes that have been tested and approved is listed in our Installation Guide. All tape installation should be in accordance with the manufactures install details.
What is the nailing pattern on the sheets?
150 centres around the perimeter of the sheets and 300mm through the centres. 75mm centres on the top and bottom plate. If not used as bracing 300mm centres.
How long can the RigidRAP be left before cladding?
You can leave outside in the weather for up to 90 days before cladding.
Can I direct fix to RigidRAP?
Corrugated iron is the only product than can be directly fixed as this profile forms a cavity type system. Corrugated iron needs to be installed vertically when fixing directly. All other cladding products need to be fixed to a cavity system.
Can I use RigidRAP on steel frames?
No, but you can use IBS RigidRAP-XT. Full details are on our website.
What certification does RigidRAP have?
IBS RigidRAP has Codemark certification.
RigidRAP-XT
BS RigidRAP®-XT is the only triple layer rigid air barrier system available in New Zealand with a thermal break laminated on the back of each board.
IBS RigidRAP®-XT is an 8mm OSB3 product that has been laminated with an approved building paper to give your house dual protection from the weather during your building process as well as a thermal break graphite polystyrene board on the inside making it ideal for steel frame buildings. IBS RigidRAP®-XT is not only a temporary weather cladding but it also provides bracing. The product is lightweight, easy to cut nail or screw, and can be exposed to the weather for up to 90 days.
IBS RigidRAP®-XT can be used as an external wall bracing element when used in conjunction with a specific fixing system or a thermal break for steel frames.
Intended use for IBS RigidRAP®-XT are:
- External wall bracing element when used in conjunction with a specific fixing system
- Thermal break for steel and timber frames


- Lightweight board – one-man lift
- Easy to cut, nail, screw and drill
- Speed up construction by working inside and outside the building at the same time
- Rapid moisture protection of the building
- Weather tightness and an airtight building or home
- Allows for interior construction to continue
- Provides a greater level of site security
- R-Value of 0.41
- Backing board which is a 10mm lightweight rigid foam composition
- Moisture resistant and load bearing panel
- CodeMark Certified (CM70091)
- Meets all requirements of the New Zealand Building Code (NZBC)
- Hard-wearing exposure tested by SCION New Zealand (90 days exposure)
Below are some of the taping options available for RigidRAP-XT
Thermakraft Premium Joining Tape 75mm wide x 23m long
Thermaflash Flashing Tape Letter
Thermaflash Flashing Tape BRANZ
Hydro Tape 75mm (Masons)
Mason 40 Below Platinum and Flex
Super-Stick (Marshalls Innovations)
3M™ All Weather Flashing Tape 8067 (3M™)
DriStud Cool Tape (DriStud)
TESCON EXTORA (Pro Clima)
EUROBAND S 60 (Frame Protection)
SIGA Tape Manual
SIGA BRANZ
SIGA Letter
Which way do the sheets need to be installed?
All sheets should be installed vertically for bracing. Sheets can be installed horizontally if they are not used as a bracing panel.
How much gap do I need to leave between sheets?
You need to leave a 2mm gap around all sides of the sheets for expansion and contraction. This means 4mm between the sheets on all sides. Hence the sheet width of 1196mm.
What tapes do I use?
A list of all tapes that have been tested and approved is listed in our Installation Guide. All tape installation should be in accordance with the manufactures install details.
What is the nailing pattern on the sheets?
150 centres around the perimeter of the sheets and 300mm through the centres. 75mm centres on the top and bottom plate. If not used as bracing 300mm centres.
How long can the RigidRAP-XT be left before cladding?
You can leave outside in the weather for up to 90 days before cladding.
Can I direct fix to RigidRAP-XT?
Corrugated iron is the only product than can be directly fixed as this profile forms a cavity type system. Corrugated iron needs to be installed vertically when fixing directly. All other cladding products need to be fixed to a cavity system.
Can I use RigidRAP-XT on timber frames?
Yes.
What certification does RigidRAP-XT have?
IBS RigidRAP has Codemark certification.
Who we are
Since 1993, IBS has been working with the top building product panel producers in the world to bring New Zealand a panel product range that help Kiwis build better. IBS source high quality flat panel products from only the best suppliers around the world. Our products are tested and certified to comply with New Zealand building codes and standards, to ensure all products supplied are fit for purpose. We also make sure our products are supplied from a third party certified sustainable renewable source.
Our products
We have a wide range of brands from the largest producers in the world that have been tested and approved for use in NZ. A full set of documentation is available for our products which means you can specify them with confidence.
IBS Sustainable Building Products is proud to be 100% Kiwi owned and operated.

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