• Suitable for all construction and where there is risk of interstitial condensation
• The protection of insulation from air movement
• Preventing uncontrollable air flow though the building envelope
• An optional continuous cavity for electrical and plumbing services can be created on the inside face of the external wall by fixing battens horizontally over the INTELLO membrane before installing the wall lining
• The main advantage of a service cavity is to shift the plumbing and wiring out of the insulation layer
• A service cavity also reduces the penetrations through the airtightness membrane allowing easy and fast installation of services
• This also eliminates pressure points on inner lining (eg. plasterboard) from insulation expansion

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The NZBC requires only that airtightness be considered, not measured. INTELLO directly assists with meeting the following requirements:

• Clause E3.1 INTERNAL MOISTURE: Buildings must safeguard people against illness, injury, or loss of amenity that could result from the accumulation of internal moisture
• Clause E3.2 INTERNAL MOISTURE: Buildings must avoid the likelihood of fungal growth or the accumulation of contaminants on linings and other building elements
• Clause E2 EXTERNAL MOISTURE: Concealed spaces and cavities in buildings must be constructed in a way that prevents external moisture being accumulated or transferred and causing condensation, fungal growth, or degradation of building elements
• Clause E2 EXTERNAL MOISTURE: Building elements must make due allowance for the following: (a) the consequences of failure, (c) variation in the properties of materials and in the characteristics of the site
• Clause E2 EXTERNAL MOISTURE: Interior linings with all joints stopped require barriers to airflow
• Clause H1 : ENERGY EFFICIENCY: The building must be constructed to limit uncontrollable airflow
• Clause H1 : ENERGY EFFICIENCY: Account must be taken of physical conditions likely to affect energy performance of buildings; (c) Airtightness of the building envelope.
• Clause B2 : DURABILITY: Performance B2.3.1(a), not less than 50 years, B2.3.1(b), 15 years and B2.3.2

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BRANZ Appraised

Wall Underlays:

KAFLEX and ROFLEX Grommets have been appraised as pipe and cable penetration seals for use where the penetration is through the wall underlay on framed walls within the following scope:

• within the limitations of NZBC Acceptable Solution E2/AS1, Paragraph1.1 with regards to building height and floorplan area
• with flexible wall underlays situated in NZS3604 Wind Zones up to, and including, Very High; or
• with flexible wall underlays used over rigid wall underlays in accordance with E2/AS1,Paragraph 9.1.7.2, situated in NZS3604 Wind Zones up to, and including, Extra High; or,
• with proprietary plywood or fibre cement based rigid wall underlays (rigid air barriers).

The flexible and rigid wall underlays must be covered by a valid BRANZ Appraisal.

Roof Underlays:

KAFLEX and ROFLEX Grommets have also been appraised as pipe and cable grommets for use where the penetration is through the roof underlay on framed pitched roofs within the following scope:

• within the limitations of NZBC Acceptable Solution E2/AS1, Paragraph1.1 with regards to building height and floor plan area; and,
• with flexible roof underlays fixed over framing or rigid roof sarking; and,
• situated in NZS3604 Wind Zones up to, and including, Extra High

The flexible roof underlays must be covered by a valid BRANZ Appraisal.

Specific Design:

— KAFLEX and ROFLEX Grommets have also been appraised for use on buildings subject to specific weathertightness design. Building designers are responsible for the building design and for the incorporation of KAFLEX and ROFLEX Grommets into their design in accordance with the declared properties and the instructions of Pro Clima(NZ)Ltd

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In the opinion of BRANZ, KAFLEX and ROFLEX Grommets, if designed, used, installed and maintained in accordance with the statements and conditions of this Appraisal, will meet or contribute to meeting the following provisions of the NZBC:

• Clause B2 DURABILITY: Performance B2.3.1 (b), 15 years and B2.3.2. KAFLEX and ROFLEX Grommets meet these requirements. See Paragraphs 8.1 and 8.2.
• Clause E2 EXTERNAL MOISTURE: Performance E2.3.2. When used as part of the wall or roof cladding system, KAFLEX and ROFLEX Grommets will contribute to meeting this requirement. See Paragraphs 7.1 - 7.7 and 11.1 - 11.2.
• Clause F2 HAZARDOUS BUILDING MATERIALS: Performance F2.3.1. KAFLEX and ROFLEX Grommets meet this requirement and will not present a health hazard to people.

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BRANZ Appraised

SOLITEX MENTO 1000 has been appraised for use as a self-supporting roof underlay on buildings within the following scope:

• the scope of limitations of NZBC Acceptable Solution E2/AS1, Paragraph 1.1 with regards to building height and floor plan area; and,
• with masonry tile roof cladding; and,
• with metal tile and profiles metal roof cladding; and,
• suited to NZS 3604 Wind Zones up to, and including Extra High.

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In the opinion of BRANZ, SOLITEX MENTO 1000, if used, designed, installed and maintained in accordance with the statements and conditions of Appraisal No.876 (2014), will meet, or contribute to meeting the following provisions of the NZBC:

• Clause B2 DURABILITY: Performance B2.3.1(a), not less than 50 years, B2.3.1(b), 15 years and B2.3.2. SOLITEX MENTO 1000 meets these requirements.
• Clause E2 EXTERNAL MOISTURE: Performance E2.3.2. When used as part of the roof cladding system, SOLITEX MENTO 1000 will contribute to meeting this requirement.
• Clause F2 HAZARDOUS BUILDING MATERIALS: Performance F2.3.1. SOLITEX MENTO 1000 meets this requirement and will not present a health hazard to people.

SOLITEX MENTO 1000 has been Appraised as an Alternative Solution in terms of the New Zealand Building Code Compliance.

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Durability

External Moisture

Hazardous Building Materials