Create Dry, Safe and Healthy School Buildings with Thermakraft

The Ministry of Education sets guidelines to ensure the materials being used provide kids with a safe and healthy learning environment, the materials are fit for purpose and the quality of those materials will contribute to the durability and longevity of the building.

Thermakraft’s range of products meet the Ministry Guidelines in regard to best practice standards, weathertightness, fire safety, ventilation, roofing materials, roofing safety and product authentication, such as BRANZ Appraisals and CodeMark certification.

Freemans Bay Primary School was designed and specified by RTA Studio, including several Thermakraft product selections. This project has been highly commended, winning several awards and being listed as a finalist in two categories of the World Architecture Festival Award.

Roofing specialist Topline Roofing installed the roof. Neil Gillespie, Managing Director comments on the use of Thermakraft product: “At Topline Roofing, we strive for quality in everything we do and have a long-standing reputation to uphold. We use Thermakraft Covertek because we have confidence in the quality and reliability of the product."

Paula Wallace, National Specification Manager suggests the integration of products across the build enables a strong simplified warranty, reduces waste, reduces labour costs, optimises square metre coverage and provides time efficiencies on site and in the office.

An example of a Thermakraft integrated solution from the ground to roof that meets the Ministry Guidelines is a combination of Thermathene Orange DPM, Supercourse 500 DPC, Watergate Plus wall underlay, Oneseal penetration seals, Thermaflash flashing tape, Covertek 407 roof underlay and Ausmesh safety mesh. This is just one example, talk to the Thermakraft technical team about a solution that will best meet the brief of your project.

In addition to meeting Ministry Guidelines, architects who specify Thermakraft will be supporting local. Thermakraft is a New Zealand owned and operated company. The innovative roof and wall underlays are all manufactured in East Tamaki and the underlays don’t go out the door without every batch being tested to ensure critical performance is met.

Thermakraft One Wrap System

Kingspan Thermakraft

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The Thermakraft flexible wall membrane system is a multi-product integrated system design to assist with the passive control of air and moisture in buildings constructed in compliance with NZS3604:2011 and the requirements of all relevant compliance documents.

The Thermakraft One Wrap System is used behind wall cladding systems and around framed joinery openings as a secondary weather resistant barrier for walls.

System has been appraised for use a s flexible wall underlay system:

On timber and steel framed buildings
Over rigid wall underlays on timber and steel framed buildings

See BRANZ appraisal for full scope

In the opinion of BRANZ, The Thermakraft One Wrap System, if designed, used, installed, and maintained in accordance with the statements and conditions of the Appraisal, will meet, or contribute to meeting the following provisions of the NZBC:

B2 Durability: Performance B2.3.1 (a), not less than 50 years, B2.3.1 (b), 15 years and B2.3.2. the Thermakraft One Wrap System meets these requirements.
E2 External Moisture: Performance E2.3.2. When used as part of the cladding system, Thermakraft One Wrap System will contribute to meeting this requirement.
F2 Hazardous Building Materials: Performance F2.3.1. The Thermakraft One Warp System meets this requirement and will not present a health hazard to people.

BRANZ Appraised

Thermakraft Thermaflash

Kingspan Thermakraft

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Thermaflash high adhesion synthetic window flashing tape is a high performance self-adhering synthetic tape.

Thermaflash window flashing tape can be used as a flexible flashing system around window and door joinery openings on timber and steel framed buildings within the following scope:

Installed into and around joinery openings over the wall underlay and exposed frame to cover both the face and edge of the opening as a secondary weather resistant barrier
Installed at joinery heads to seal flashing upstands to the wall underlay
To assist the overall weathertightness performance of window and door joinery installations
To be used in conjunction with air seals and joinery flashing systems. Installer must check for air seal product compatibility with Thermaflash
Situated in NZS3604 Wind Zones up to, and including, ‘Extra High’
Suitable for residential builds (E2/AS1 timber framed and E2/AS4 steel framed) and medium rise buildings (E2/VM2)

Thermaflash window flashing tape has been appraised by BRANZ as a flexible system for use around window and door joinery for buildings with the following scope:

Constructed with timber and steel framing in accordance with scope limitations of NZBC Acceptable Solution E2/AS1 and NASH Building Envelope Solutions, Paragraph 1.1
With a risk score of 0-20, calculated in accordance with NZBC Acceptable Solution E2/AS1 or NASH Building Envelope Solutions, Table 2
With wall cladding systems complying with NZBC Acceptable Solution E2/AS1 or NASH Building Envelope Solutions, or a valid BRANZ Appraisal that specifies a flexible flashing system
With flexible wall underlays compatible with the flashing tape and complying with the NZBC

Clause B2 DURABILITY: Performance B2.3.1 (b), 15 years and B2.3.2. Thermaflash Flashing Tape meets these requirements
Clause E2 EXTERNAL MOISTURE: Performance E2.3.2. Thermaflash Flashing Tape contributes to meeting this requirement
Clause F2 HAZARDOUS BUILDING MATERIALS: Performance F2.3.1. Thermaflash Flashing Tape meets this requirement and will not present a health hazard to people

BRANZ Appraised

Thermakraft Ausmesh Safety Netting

Kingspan Thermakraft

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Ausmesh safety netting is a roof underlay support and fall arrest.

Suitable for the support of insulation and foil underlays (Thermabar 344, Thermabar 346 and Thermabar 397) in exposed roof spaces
Ideal for supporting roof underlays as part of the safety requirements

Complies with AS/NZ 4389:2015

Thermakraft Watergate Plus

Kingspan Thermakraft

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Thermakraft Watergate Plus is a fire retardant absorbent breathable wall underlay.

Thermakraft Watergate Plus can be used as a wall underlay on timber and steel framed buildings within the following scope:

The scope limitations of NZBC Acceptable Solution E2/AS1, Paragraph 1.1, with regards to building height and floor plan area; and,
With absorbent wall claddings directly fixed to timber and steel framing; and,
With non-absorbent wall claddings directly fixed to timber and steel framing; and,
With absorbent and non-absorbent wall claddings installed over an 18mm minimum drained cavity;
With masonry veneer in accordance with NZS 3604, NZBC Acceptable Solution E2/AS1 for timber framed buildings, or specific engineering design for steel framed buildings; and,
Situated in NZS3604 Building Wind Zones up to, and including ‘Very High’ when used as a standalone flexible underlay, and “Extra High” when used as a flexible underlay over a rigid wall underlay.
Can be used as a non-rigid backing material for Stucco Plaster in accordance with the requirements of NZBC Acceptable Solution E2/AS1 Paragraph 9.3.5.1.
The Underlay must be supported with 75mm galvanized mesh, or Thermakraft Stud Strap at 150mm centres run across cavity battens to limit deflection to a maximum of 5mm.
May also be used as a slip layer over rigid backing for Stucco Plaster in accordance with the requirements of NZBC E2/AS1 Paragraph 9.3.3(b).
Refer BRANZ Appraisal No 695 (2017) for full details.
May be used with LOSP treated timber.
Is suitable as an air barrier in unlined wall spaces.
Is suitable to be used in conjunction with thermal breaks on steel framed buildings.
Is suitable for direct fixing behind metal cladding

Meets the Performance Requirements of NZBC Clauses B2, Durability (B2.3.1 (a) 50 years, B2.3.1 (b) 15 years and B2.3.2), E2 External Moisture (E2.3.2), and F2 Hazardous Building Materials F2.3.1, providing

It is not damaged
Installed in accordance with instruction guide
Is not left exposed for more than 90 days
Installed by or under guidance of Licensed Building Practitioners
Is compatible with cladding system used

BRANZ Appraised

CodeMark

Thermakraft CoverTek 407 — Roof & Wall Underlay

Kingspan Thermakraft

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Thermakraft CoverTek 407 is a fire retardant self supporting synthetic building underlay for the use under all claddings.

Thermakraft CoverTek 407 Fire Retardant Self-Supporting Roof Underlay has been appraised for use as a self-supporting roof underlay on buildings within the following scope:

The scope limitations of NZBC Acceptable Solutions 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 profiled metal roof cladding; and,
Situated in NZS 3604 Wind Zones up to, and including Extra High

Clause B2 Durability: Performance B2.3.1 (a), not less than 50 years, B2.3.1 (b), 15 years and B2.3.2. Thermakraft CoverTek 407 meets these requirements.

Clause E2 External Moisture: Performance E2.3.2. When used as part of the cladding system, Thermakraft CoverTek 407 will contribute to meeting this requirement.

Clause F2 Hazardous Building Materials: Performance F2.3.1. Thermakraft CoverTek 407 meets this requirement and will not present a health hazard to people.

Thermakraft CoverTek 407 Roof Underlay has an AS 1530 Part 2 flammability Index of not greater than 5 and therefore meets the requirements of NZBC Acceptable Solutions C/AS2 to C/AS6, Paragraph 4.17.8 b), for the surface finish requirements of suspended flexible fabric used as an underlay to exterior cladding that is exposed to view in occupied spaces. It may therefore be used with no restrictions in all buildings.

BRANZ Appraised

CodeMark

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