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 is 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. It is not only a
temporary weather cladding but also provides bracing.