New Rigid Air Barrier Offers Increased Bracing Performance

IBS has long been involved in sourcing and developing new products for the New Zealand market. Recently they have launched what they dub "The Next Generation" in rigid air barriers, IBS RigidRAP.

IBS RigidRAP is an OSB3 x 8mm product from Swiss Krono in Germany, laminated with a BRANZ-appraised building paper from Techno Insulation. The product is a further development of IBS' very successful OS’BraceRAP which has been in the market over the last four and a half years.

IBS RigidRAP is available in large sheet sizes: 2440 x 1196mm, 2745 x 1196mm and 3050 x 1196mm. Use of IBSRigidRAP can reduce the total build time by up to four weeks, allowing for a quicker close-in so work can continue on the inside of the house no matter what the weather outside.

The high-performance rigid air barrier is also a low formaldehyde, (E0) product, sourced from sustainable forests, and supports a healthy indoor climate.

Key advantages:

Provides structural bracing and a weather protection panel in one product
18% more bracing than 6mm OSB
Compliant with all NZ Building Code requirements including Table 23 of E2/AS1
CodeMark certified
Suitable for 90 Day exposure
Moisture and UV resistant
Suitable for use in Extra High Wind Zones
Eliminates lintel tie downs and mechanical top plate connections

Rigorously tested to meet the New Zealand Building Code, IBS RigidRAP is an excellent choice for building stronger, warmer and healthier homes.

IBS RigidRAP

Independent Building Supplies

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IBS RigidRAP® is an 8mm OSB3 (Oriented Strand Board) which has been manufactured specifically for New Zealand, for use as a bracing element and/or rigid air barrier.

IBS supply IBS RigidRAP for use as an internal or external wall bracing element when used in conjunction with a specific fixing system.

IBS RigidRAP may be used as a bracing element within the following scope:

In wind zones:

Up to and including extra high.
Up to 2.5kPa ULS where the building is specifically engineered.

Building scope

New buildings: with timber wall framing complying with NZBC
In conjunction with the GIB HandiBrac® method or a Strap Bracing system
In conjunction with LVL System - staples, Mitek CPC 80 and SPAX screws
In conjunction with LVL System - staples, Simpson Strong-Tie DTT2Z and type 17 screws
In conjunction with concrete and timber subfloor applications that comply with the NZBC
With all cladding types that comply with NZBC
In conjunction with a drained and ventilated nominal 20mm cavity system
With aluminium joinery complying with the NZBC
IBS RigidRAP may be used as a bracing element in existing buildings, however in these cases IBS makes no claim as to the bracing value that will be achieved

If IBS RigidRAP is to be installed as a bracing element in existing timber framed buildings, the following scope applies:

Existing timber framed buildings where the designer and/or installer have assured themselves that the existing building is suitable for the intended building work
Existing concrete and timber sub-floor structures where the designer and/or installer have assured themselves that the existing building is suitable for the intended building work

If designed, used, installed and maintained in accordance with the scope, this product will meet the following provisions of the NZBC:

B1 Structure: B1.3.1, B1.3.2, B1.3.3(a, b, f, h, m, q), B1.3.4
B2 Durability: B2.3.1(a)
E2 External Moisture: E2.3.2, E2.3.7
F2 Hazardous Building Materials: F2.3.1

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