• 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

• Use with Rigid Air Barrier systems
• Intended for use at intermediate floor junctions and internal to external wall junctions
• Up to 90 days of UV exposure prior to being covered by internal linings or external cladding — humidity-variable functionality and UV stability of up to 90 days
• See BRANZ Appraisal 1149 [2021] for full information

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In the opinion of BRANZ, INTELLO Humidity Variable Intelligent Airtightness System, if used, designed, 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 (a) not less than 50 years, B2.3.1 (b) 15 years and B2.3.2. The INTELLO Humidity Variable Intelligent Airtightness System meet these requirements. See Paragraphs 9.1 and 9.2.
• Clause E3 INTERNAL MOISTURE: Performance E3.3.1. When used with an adequate combination of thermal resistance, ventilation and space temperature in habitable spaces, the INTELLO Humidity Variable Intelligent Airtightness System contributes to meeting this requirement. See Paragraphs 12.1-12.3.
• Clause F2 HAZARDOUS BUILDING MATERIALS: Performance F2.3.1. The INTELLO Humidity Variable Intelligent Airtightness System meets this requirement.
• Clause H1 ENERGY EFFICIENCY: Performance H1.3.1 (b) limiting uncontrollable airflow. The INTELLO Humidity Variable Intelligent Airtightness System contributes to meeting this requirement. See Paragraph 15.1.

See BRANZ Appraisal 1149 [2021] for full information

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BRANZ Appraised

• Used to achieve airtightness on both commercial and residential projects
• For bonding of INTELLO Plus airtightness membrane as well as airtight wood based panels

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• B2 DURABILITY: Performance clauses B2.3.1 (a) not less than 50 years, B2.3.1 (b) 15 years and B2.3.2: TESCON® VANA meets these requirements when used behind internal linings with a NZBC durability requirement of not less than 50 years, e.g. linings for fire rated load-bearing walls; and code compliance with NZBC Clause B2.3.1 (b) 15 years when used where the internal lining durability requirement is 15 years, e.g. shower linings. Provided the internal lining is maintained in accordance with the lining manufacturer’s instructions and the lining remains sound, TESCON® VANA is expected to have a serviceable life equal to that of the internal lining.
• E3 INTERNAL MOISTURE: Functional requirement clause E3.2: When used with an adequate combination of thermal resistance, ventilation and space temperature in habitable spaces, TESCON® VANA contributes to meeting this requirement. Although NZBC Clause E3 covers the accumulation of internal moisture, the NZBC Acceptable Solution E3/AS1 makes no specific reference to the requirements and characteristics of barriers to airflow within the concealed spaces in buildings, such as within the wall or ceiling structure. Where possible, moisture sources should be controlled at their origin.
• F2 HAZARDOUS BUILDING MATERIALS: Performance clause F2.3.1: TESCON® VANA is safe to handle and will not present a health hazard to people, so contributes to meeting this requirement
• H1 ENERGY EFFICIENCY: Performance clause H1.3.1 (b) limiting uncontrollable airflow: TESCON® VANA contributes to meeting this requirement

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• Suitable for bonding pro clima products to smooth or rough masonry or timber

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• Declare Red List Free

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TESCON EXTORA Sealing Tape has been appraised by BRANZ as a flashing tape for use around the head and jambs of window and door joinery openings for buildings within the following scope:

• the scope limitations of NZBC Acceptable Solution E2/AS1, Paragraph 1.1; and,
• with a risk score of 0-20, calculated in accordance with NZBC Acceptable Solution E2/AS1, Table 2; and,
• with wall cladding systems complying with NZBC Acceptable Solution E2/AS1 or a valid BRANZ Appraisal that specifies a flexible flashing system; and,
• with a compatible flexible wall underlay fixed directly to the framing or over-fixed over a rigid wall underlay; and,
• situated in NZS 3604 Wind Zones up to, and including, Extra High.

TESCON EXTORA Sealing Tape has also been appraised as a joint-sealing tape for rigid wall underlays [fibre cement sheet and H3.2 treated plywood In accordance with NZBC Acceptable Solution E2/AS1] which are over-fixed with a flexible wall underlay in accordance with NZBC Acceptable Solution E2/AS1, Paragraph 9.1.7.2 on buildings within the following scope:

• the scope limitations of NZBC Acceptable Solution E2/AS1, Paragraph 1.1; and,
• with a risk score of 0-20, calculated in accordance with NZBC Acceptable Solution E2/AS1, Table 2; and,
• with wall cladding systems complying with NZBC Acceptable Solution E2/AS1 or a valid BRANZ Appraisal; and,
• situated In NZS 3604 Wind Zones up to, and including, Extra High.

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In the opinion of BRANZ, TESCON EXTORA Sealing Tape, if designed, used, installed and maintained in accordance with the statements and conditions of BRANZ Appraisal 838 (2013), 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. TESCON EXTORA Sealing Tape meets these requirements. See Paragraphs 8.1 and 8.2.
• Clause E2 EXTERNAL MOISTURE: Performance E2.3.2.TESCON EXTORA Sealing Tape contributes to meeting this requirement. See Paragraphs 7.1- 7.5 and 11.1 - 11.5.
• Clause F2 HAZARDOUS BUILDING MATERIALS: Performance F2.3.1. TESCON EXTORA Sealing Tape meets this requirement and will not present a health hazard to people.

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BRANZ Appraised