UNI® PLUS is a fire retardant flexible wall underlay, with the following suitability:

Location:

• In locations with a wind design pressure (ULS) of up to and including 4.6 kPa (which includes all NZS 3604:2011 wind zones).
• For 'Very High' wind zones over rigid wall underlays
• In seismic zones up to and including seismic zone 3
• In all exposure zones
• Further than 1 m from a relevant boundary

Building:

• For commercial and residential construction
• Designed for use with all cladding systems
• Performs on timber and steel framed buildings
• As a temporary cladding for up to 90 days
• With buildings of all building heights, up to the permissible wind design pressure of 4.6 kPa
• With cladding and joinery that complies with the relevant provisions of the NZ Building Code for the site and location
• Suitable for use as a non-rigid backing for stucco plaster
• UNI® PLUS is suitable as an air barrier on walls that are not lined
• For vertical use only, not suitable as a roof underlay
• UNI® PLUS Must be covered with a suitable wall lining to any occupied spacings

Show more

NEW ZEALAND BUILDING CODE STANDARD (NZBC)

• UNI PLUS meets or exceeds the requirements of the NZBC
• Product Assurance Supplier Statement; PASS. Documentation is available from the downloads button on this page

If designed, installed and maintained in accordance with all Masons Plastabrick’s requirements, UNI PLUS will comply with or contribute to compliance with the following performance claims:

B1 STRUCTURE: B1.3.1, B1.3.2, B1.3.3 (a, e, f, h, j, m, q, & UV), B1.3.4 (a, b, c, d, e)

• Meets requirements of NZS 2295:2006; tested to ASTM D882 for tensile properties, TAPPI T470 for resistance to tearing. NZS 2295:2006 is referenced in E2/AS1 for flexible underlays [Scion, 01/2022].

B2 DURABILITY: B2.3.1 (a), B2.3.2 (b)

• Meets requirements of NZS 2295:2006; tested to ASTM G154 for accelerated UV ageing [Scion, 01/2022].

FIRE AFFECTING AREAS BEYOND THE FIRE SOURCE: C3.4 (c)

• Meets requirements of NZS 2295:2006; flammability index of 1 when tested to AS 1530.2:1993 [NZWTA, 01/06/2021].

E2 EXTERNAL MOISTURE: E2.3.2, E2.3.5, E2.3.7 (a, b, c)

• Meets requirements of NZS 2295:2006; tested to AS/NZS 4201.4 for water penetration, tested to AS/NZS 4201.6 for surface water absorbency, tested to ASTM E96 Procedure B for Water vapour resistance [Scion, 01/2022].
• Installation details and requirements in accordance with E2/AS1.

F2 HAZARDOUS BUILDING MATERIALS: F2.3.1

• Manufactured to EN 13859-2:2014; product does not emit harmful materials based on supplier’s technical data and testing specification and material safety information [Masons Plastabrick, 30/08/2021a, 30/08/2021b].
• Use in accordance with the supplier’s requirements [Masons Plastabrick, 01/2022].

Show more

Masons UNI PRO Flexible Air Barrier is certified for use as a wall underlay and air barrier on buildings:

• a) within the scope limitations of:
  i. NZBC Acceptable Solution E2/AS1, Paragraph 1.1 with regards to building height and floor plan area for timber-framed construction; or
  ii. NZBC Acceptable Solution E2/AS4 with regards to building height and floor plan area for light-steel framed construction, and
• b) situated in wind zones (as defined in NZS 3604:2011) up to and including 'Extra High', provided stud and fixing centres are no greater than specified in the Masons UNI PRO Flexible Air Barrier Design and Installation Guide V1.0, November 2021, and
• c) with absorbent or non-absorbent wall claddings directly fixed to the frame, or installed over an 18mm minimum drained cavity; or with masonry veneer, in accordance with NZBC Acceptable Solution E2/AS1 for timber-framed buildings or NZBC Acceptable Solution E2/AS4 for steel-framed buildings, and
• d) where the underlay is not exposed to view in an occupied space

Masons UNI PRO Flexible Air Barrier shall be:

• a) installed in accordance with the MASONS UNI® PRO Flexible Air Barrier Design and Installation Guide V1.0, November 2021, and
• b) separated from fireplaces, heating appliances, flues and chimneys in accordance with the requirements of NZBC Acceptable Solutions C/AS1 and C/AS2, Paragraph 7.5.9 for the protection of combustible materials, and
• c) protected from sunlight within 150 days

Contribution to compliance with Building Code clause H1.3.1(b) is conditional on:

• a) the element incorporating UNI® PRO Flexible Air Barrier being part of the thermal envelope of the building, and
• b) horizontal and vertical laps being securely taped

• In locations with a wind design pressure (ULS) of up to and including 4.6 kPa (which includes all NZS 3604:2011 wind zones).
• UNI® PRO is suitable for 'Very High' wind zones over rigid wall underlays.
• In seismic zones up to and including seismic zone 3.
• In all exposure zones.
• Further than 1 m from a relevant boundary

• For commercial and residential construction
• Designed for use with all cladding systems
• Performs on timber and steel framed buildings
• As a temporary cladding for up to 150 days
• With buildings of all building heights, up to the permissible wind design pressure of 4.6 kPa
• With cladding and joinery that complies with the relevant provisions of the NZ Building Code for the site and location
• Suitable for use as a non-rigid backing for stucco plaster
• UNI PRO is suitable as an air barrier on walls that are not lined
• For vertical use only, not suitable as a roof underlay
• UNI PRO Must be covered with a suitable wall lining to any occupied spacings

Show more

UNI PRO meets or exceeds the requirements of the NZBC.

• CodeMark Certified (CM70117)

If designed, installed and maintained in accordance with all Masons Plastabrick's requirements, the UNI PRO will comply with or contribute to compliance with the following performance claims:

• B2 Durability: B2.3.1(a), B2.3.2
• E2 External moisture: E2.3.2 (contributes to), E2.3.5 (contributes to), E2.3.7
• F2 Hazardous building materials: F2.3.1
• H1 Energy efficiency: H1.3.1(b) (contributes to)

Show more

CodeMark

For scope of use, limitations, conditions and statement of building code compliance, refer to the Masons Intertenancy Wall System PASS Product Statement.

Simple — easy to use, flexible and fast:

The Masons system is construction friendly and designed for simplicity and flexibility. As few as two builders can install the system, and installation can be flowed around other work on-site. No weather protection is needed for the AAC panels when work stops, making on-site storage simple.

Fast — designed for buildability:

The system can be installed up to three stories continuously, without interruption, and there is often no need for extra accessories or fiddly work at mid-floors junctions. Services can be run down the framing on either side of the AAC panels, and materials are carried in smaller parts when site access is difficult. The ACC system is easier for everyone on the job.

Show more

Exceeds code — fully FRR & STC compliant:

• This system meets and/or exceeds the New Zealand Building Code's minimum requirements for both fire resistance rating and sound transmission class.
• It scored a rating of -/120/120 for walls up to 10 m high. FRR -/120/120 for timber frame, and -/90/90 for light steel framing.
• Acoustic engineers Marshall Day reported a lab performance of 64 dB — higher than the minimum STC requirement of 55 dB for intertenancy walls.

For scope of use, limitations, conditions and statement of building code compliance, refer to the Masons Intertenancy Wall System PASS™.

Show more

PASS

The rigid underlay, covered with water, air and UV resistant self-adhesive wrap, allows construction work to get started inside the building. Interior and exterior trades can work in parallel to speed up programmes, while protecting the building from weather whilst there is no cladding in place.

• Temporary weather protection for up to 150 days
• Suitable for all wind zones

Show more

Masons Barricade Weather Defense System meets or exceeds the requirements of the NZBC.

• CodeMark Certified (CMNZ70128)

If designed, installed and maintained in accordance with all Masons Plastabrick's requirements, the Barricade Weather Defense System will comply with or contribute to compliance with the following performance claims:

• B1 Structure: B1.3.1, B1.3.3, B1.3.3(a, b, f, h), B1.3.4
• B2 Durability: B2.3.1(a), B2.3.2 (a)
• C3 Fire affecting areas beyond the fire source: C3.6 (contributes to), C3.7 (contributes to)
• E2 External moisture: E2.3.2 (contributes to), E2.3.5 (contributes to), E2.3.6 (contributes to), E2.3.7
• F2 Hazardous building materials: F2.3.1
• H1 Energy efficiency: H1.3.1(b) (contributes to)

Show more

PASS

Test Results