Specify a Complete Building Wrap and Ventilation System with DriStud

Understanding the science behind buildings and managing the balance of air, heat and moisture movement is crucial to successful construction and operation. This can impact the quality and performance of the building in use and the health of building occupants.

TCL Hunt building products provide a complete pre-cladding system, with an air and moisture barrier and condensation control solutions.

Proctor Passive Wraptite SA

Air leakage through cracks, gaps, holes and improperly sealed elements can cause a significant reduction in the performance of even well-insulated envelopes, reducing their effectiveness by up to 70%. To resolve this issue, DriStud supplies Proctor Passive Wraptite SA — a self-adhering, water-resistant, vapour and air permeable building membrane. Applying Wraptite to the outside of a building will mean there are fewer penetrations for services in the substrate, making it airtight and energy-efficient.

Key construction benefits:

Airtightness and wind resistance during construction
Water resistance — providing temporary protection for the building substrate during construction
Vapour permeability — allowing vapour to escape to reduce condensation for users and structure
Saves on both the labour and material costs as it requires minimal tapes and sealants
Self-adhering ensures less risk of water/wind ingress

Vent NZ Passive Ventilation Systems

Moisture vapour will pass through the various layers of any construction by both convection and diffusion. Dense cold air causes warm air with high moisture content to rise up from the living space to the roof space. DriStud resolves this problem at the construction stage with VENT NZ Passive Ventilation systems installed to eliminate the risk of condensation in the roof cavity. Ventilating eaves/ridges and correct installation of the roof underlay ensure sufficient airflow in the roof cavity to keep the roof space dry and eliminate condensation and associated problems such as mould growth.

DriStud Underlay System

DriStud Wall and Roof Underlay is a tough and durable underlay system with superior mechanical strength. Suitable for both commercial and residential projects, it is one of the highest vapour permeable products in the market — boasting well below 0.5 MNs/g vapour resistance. For commercial and warehouse applications where superior strength is required, DriStud offers a fully synthetic vapour barrier featuring a white-faced foil. As part of the system, DriStud also offers DriStud Cool Window Flashing Tape — an acrylic polymer adhesive tape with superior adhesion even in harsh weather conditions.

ProctorPassive Wraptite SA

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Protor Passive Wraptite-SA is a self adhering airtight and vapour permeable membrane for wall and roof applications.

LBC Red List Free

Proctor Passive Wraptite SA can be installed on new and existing buildings and it is suitable for roof and wall applications for residential, commercial and high rise buildings.

Proctor Passive Wraptite SA's high vapour permeable peel and stick products used full coverage in pitched roofs and walls allows excellent drying capacity for assemblies wet during construction and from typical in service leaks over the life-time of the building.

Proctor Passive Wraptite SA can be installed over rigid air barrier, replacing tape and flexible underlay. It offers minimal mechanical fixings and provide greater integrity of installation and system.

Multiple substrate compatibility:

Exterior Gypsum Sheathing
Aluminium (painted or mill finish)
OSB
Most rigid insulation
Cast-in place concrete
Rigid vinyl
Pre-painted steel
Galvanised metal
Precast concrete
Steel
Concrete block
Plywood

When specified and installed in accordance with the technical literature, Proctor Passive Wraptite SA will comply with the following provisions of the NZ Building Code;

B1 Structure: B1.3.1, B1.3.2, B1.3.3 (c, h, q), B1.3.4 (a, b, c, d, e)
B2 Durability: B2.3.1 (a), B2.3.2 (a)
C Protection from Fire: C3.4(c)
E2 External Moisture: E2.3.2, E2.3.7 (a, b, c)
F2 Hazardous Building Materials: F2.3.1

DriStud RU24 — Synthetic Self Support Roof Underlay

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DriStud RU24 is non-fire retardant self-supporting black faced synthetic roofing underlay.

Intended for use on new and existing buildings in wind zones up to and including ‘Extra High’, as defined in NZS 3604:2011.
DriStud RU24 is designed to be used as a replacement for self-supporting kraft paper roof underlay. It can be installed over both timber and steel framing to ensure a dry roof cavity.
DriStud roofing underlays must be installed with all writing and imagery facing out and with as minimal a number of overlaps as possible.
Where overlaps are unavoidable a lap of 150 mm minimum must be used.
DriStud RU24 must not span more than 1.2 m between adjacent supports.
DriStud roofing underlays must be installed as described in paragraph 8.1.5, E2/AS1.

If designed, installed and maintained in accordance with the conditions of the CodeMark Certificate, DriStud RU 24 roofing underlay will comply with the following clauses of the New Zealand Building Code:

B1 Structure: B1.3.1, B1.3.2. With respect to B1.3.3, (a), (h).
B2 Durability: B2.3.1 (a), B2.3.2 (b).
F2 Hazardous Building Materials: F2.3.1

Will contribute to compliance with;

E2 External Moisture: E2.3.1, E2.3.2, E2.3.7 (a), (b), (c).

Structure

Durability

External Moisture

Hazardous Building Materials

CodeMark

DriStud W11 - Fully Synthetic Fire Retardant Premium White Faced Foil Insulation

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DriStud W11 is a Fire Retardant, fully synthetic, vapour, water barrier and a light diffuser insulation product.

DriStud W11 has a premium white face to increase light diffusion and reflection. It is used to line walls and under roofs to give a clean white finish when installed with white facing down or inside.

Where DriStud W11 is used for new construction or in connection with a building consent the work should be undertaken or supervised by a Licensed Building Practioner (LBP).

DriStud W11 has been tested to AS/NZS 4200:2017 and meets all the requirements of the NZBC:

Clauses B2, Durability (B2.3.1[b] 15 years),
E2 External Moisture E2.3.2,
F2 Hazardous Building Materials F2.3.1.

CodeMark

DriStud Cool Window Flashing Tape

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DriStud Cool Window Flashing Tape is a window sealing system that can also be used for general sealing of wall penetrations.

DriStud Cool Window Flashing Tape is intended for use in new and existing buildings in conjunction with an underlay or rigid air barrier.
It is used around framed joinery openings and penetrations, providing a secondary weather resistant barrier.
It is designed to be used in conjunction with air seals and joinery flashing systems, but not as a substitute.
DriStud Cool Window Flashing Tape may also be used at joinery heads to seal flashing upstands to the building wrap.
Where a rigid underlay has been installed, DriStud Cool Window Flashing Tape may be used to seal all junctions and penetrations.
It is suitable for use with timber and steel framed buildings as well as masonry structures.
It may be used where the environmental temperature fluctuates between -25ºC and 80ºC.
Must be installed in accordance with the DriStud Cool Window Flashing Tape Installation Manual Rev 1, July 2015.
The scope of the CodeMark certificate covers the use of DriStud Cool Window Flashing Tape in buildings:
- up to 10m in height, and
- with a risk score less than 20, when evaluated against the E2/AS1 risk matrix, and
- in wind zones up to extra high as defined in NZS 3604:2011, and
- in all corrosion zones as defined in NZS3604:2011.

up to 10m in height, and
with a risk score less than 20, when evaluated against the E2/AS1 risk matrix, and
in wind zones up to extra high as defined in NZS 3604:2011, and
in all corrosion zones as defined in NZS3604:2011.

When specified and installed in accordance with the requirements of the CodeMark Certificate, DriStud Cool Window Flashing Tape will comply with the following provisions of the NZ Building Code:

Clause B1 Structure: B1.3.1, B1.3.2, B1.3.3 (a, c, q), B1.3.4 (a, b, c, d, e)
Clause B2 Durability:B2.3.1 (b), B2.3.2 (a)
Clause E2 External Moisture: E2.3.2, E2.3.7 (a, b, c)
Clause F2 Hazardous Building Materials: F2.3.1

Structure

Durability

External Moisture

Hazardous Building Materials

CodeMark

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