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StoSilent Acoustic Systems

Sto's range of flexible acoustic systems can be used to create a tailored solution for any space, providing architects and designers with the means and materials to design acoustically perfect rooms without putting limits on creativity.

Private and public swimming pools
Activity / sports centres
Theatres and multiplex cinemas
Museums,libraries and public galleries
Music and dance studios
Shopping centres
Office spaces
Hospital wards
Classrooms and lecture theatres
Foyers and atria

StoSilent Panel Fire Test Report is appraised by BRANZ as Group Number 1S. See BRANZ Appraisal Certificate Fire Test Report.

StoArmour Facade Panel System

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Autoclaved Aerated Concrete (AAC) has evolved into an innovative lightweight concrete building material used worldwide in various construction systems. StoArmour Facade Panel embodies the latest in AAC technology with corrosion-resistant ductile steel reinforcing, delivering a durable facade panel from a dependable supplier.

The StoArmour Facade Panel Cladding System has been appraised as an external wall cladding system for buildings within the following scope:

For residential and light commercial type buildings where domestic construction techniques are used.
The scope limitations of NZBC Acceptable Solution E2/AS1, Paragraph 1.1
Constructed with timber or steel framing complying with the NZBC.
With a risk score of 0-20, calculated in accordance with NZBC Acceptable Solution E2/AS1, Table 2

The StoArmour Facade Panel System has also been appraised for weathertightness and structural wind loading within the following scope;

The scope limitations of NZBC Acceptable Solution E2/AS1, Paragraph 1
Constructed with timber and steel framing complying with the NZBC
Including wind pressures up to a maximum design differential ultimate limit state (ULS) of 2.5 kPa

StoArmour Panel is suitable for both residential and commercial buildings. For use with aluminium window and door joinery that is installed with vertical jambs and horizontal heads and sills.

The product will, if employed in accordance with the supplier's installation and maintenance requirements, assist with meeting the following provisions of the building code:

Clause B1 Structure: Performance B1.3.1, B1.3.2, B1.3.3, B1.3.4
Clause B2 Durability: Performance B2.3.1(b), B2.3.1(c), B2.3.2
Clause E2 External moisture: Performance E2.3.2
Clause F2 Hazardous building materials: Performance F2.3.1

Note: The StoArmour Facade Panel System meets the performance requirements of NZBC Clause B2.3.1 (b), 15 years for the cladding system and plaster finish, and the performance requirements of NZBC Clause B2.3.1 (c), 5 years for the exterior paint system.

The StoArmour Facade Panel System is expected to have a serviceable life of at least 30 years provided the system is maintained in accordance with this Appraisal, and the StoArmour panels, fixings and plaster are continuously protected by a weathertight coating and remain dry in service.

BRANZ Appraised

StoTherm for Timber / Steel Frame

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StoTherm Armat Insulation System and StoTherm Vario Insulation Systems are cavity-based Exterior Insulation and Finishing System (EIFS) wall claddings, incorporating a drainage cavity between the interior and exterior claddings.

The StoTherm Classic System & StoTherm Vario Insulation System have been appraised as external wall cladding systems for buildings within the following scope:

The scope limitations of NZBC Acceptable Solution E2/AS1, Paragraph 1.1
Constructed with timber framing complying with the NZBC
With a risk score of 0-20, calculated in accordance with NZBC Acceptable Solution E2/• AS1, Table 2
Situated in NZS 3604 Building Wind Zones up to, and including ‘Very High’

For weather tightness and structural wind loading when used on timber and steel framed buildings subject to specific design up to a differential design ultimate limit state (ULS) wind pressure of 2.5 kPa.

Must only be installed on vertical surfaces except for tops of parapets, sills and balustrades. For use with aluminium window and door joinery that is installed with vertical jambs and horizontal heads and sill.

StoTherm is suitable for both residential and commercial building and is combined with the selected Sto Plaster System of choice.

The product will, if employed in accordance with the supplier's installation and maintenance requirements, assist with meeting the following provisions of the building code:

Clause B1 Structure: Performance B1.3.1, B1.3.2, B1.3.3, B1.3.4
Clause B2 Durability: Performance B2.3.1(b), B2.3.1(c), B2.3.2
Clause E2 External moisture: Performance E2.3.2
Clause F2 Hazardous building materials: Performance F2.3.1

Notes: The StoTherm Cavity System and StoTherm Insulation System meet the performance requirements of NZBC Clause B2.3.1 (b), 15 years for the cavity system and plaster finish, and the performance requirements of NZBC Clause B2.3.1 (c), 5 years for the exterior paint system.

The StoTherm Cavity System and StoTherm Insulation System are expected to have a serviceable life of at least 30 years provided they are maintained in accordance with this Appraisal, and the EPS sheets, StoTherm Sheets, StoTherm Panels, fixings and plasters are continuously protected by a weathertight paint system and remain dry in service.

BRANZ Appraised

StoTherm Masonry Insulation

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StoTherm external wall insulations systems conserve energy by wrapping the building in a thermally-resistant envelope, reducing energy bills and CO2 emissions.

The StoTherm Masonry Insulation System has been appraised as an exterior insulating and finishing system for buildings within the following scope:

With Substrates of concrete masonry, in-situ or pre-cast concrete, up to 3 storeys, with a maximum height from ground to eaves of 10m
Supporting structures designed and constructed in accordance with the NZBC
Situated in NZS 3604 Building Wind Zones up to, and including 'Very High'

Bond/fixing, durability and weather tightness of the exterior insulating and finishing system for concrete masonry, in-situ or pre-cast concrete buildings subject to specific design up to a differential design ultimate limit state (ULS) wind pressure of 2.5 kPa.

StoTherm Armat is suitable for both residential and commercial building

The product will, if employed in accordance with the supplier's installation and maintenance requirements, assist with meeting the following provisions of the building code:

Clause B1 Structure: Performance B1.3.1, B1.3.2, B1.3.3, B1.3.4
Clause B2 Durability: Performance B2.3.1(b), B2.3.1(c)
Clause E2 External moisture: Performance E2.3.2
Clause F2 Hazardous building materials: Performance F2.3.1
Clause H1 Energy efficiency: Performance H1.3.1

Notes: The StoTherm Masonry Insulation System meets the performance requirements of NZBC Clause B2.3.1 (b), 15 years for the plaster system, and the performance requirements of NZBC Clause B2.3.1 (c), 5 years for the exterior paint system.

The StoTherm Masonry Insulation System is expected to have a serviceable life of at least 30 years provided it is maintained in accordance with the Appraisal, the StoTherm Panels, fixings and plasters are continuously protected by a weathertight paint system and remain dry in service and the NZBC external moisture and internal moisture provisions are met.

BRANZ Appraised

StoVentec R

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A ventilated rain screen façade system with a seamless render finish, the StoVentec R system has been designed to suit just about any substrate, including porous concrete and timber framed buildings, both new and in refurbishment.

StoPoren Brick (AAC) Veneer Construction

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StoPoren Brick Veneer are 600 x 200 x 75mm autoclaved aerated concrete bricks with reinforced lintels to offer durable, solid substrates that are incombustible, sound absorbing and thermally stable.

The StoPoren Brick Veneer Cladding System has been appraised for use as a veneer cladding system for buildings within the following scope:

For residential and light commercial type buildings.
The scope limitations of NZBC Acceptable Solution E2/AS1 Paragraph 1.1 in terms of floor area, with a maximum of two stories.
With a maximum height of brick veneer of 7.5 m above the supporting foundation, except that at gable ends and some piers this height may be up to 10.0 m, and a maximum height of 4.0 m above a roof line or 7.5 m above an adjacent building foundation, whichever is the lesser
With a depth of cavity of between 40 mm and 75 mm.
With a risk score of 0-20, calculated in accordance with NZBC Acceptable Solution E2/AS1 Table 2
Situated in NZS 3604 Wind Zones up to and including ‘Extra High'

For use with aluminium window and door joinery that is installed with vertical jambs and horizontal heads and sills.

The product will, if employed in accordance with the supplier's installation and maintenance requirements, assist with meeting the following provisions of the building code:

Clause B1 Structure: Performance B1.3.1, B1.3.2, B1.3.3, B1.3.4
Clause B2 Durability: Performance B2.3.1(b), B2.3.1(c), B2.3.2
Clause E2 External moisture: Performance E2.3.2
Clause F2 Hazardous building materials: Performance F2.3.1

Notes: The StoPoren Brick Veneer Cladding System meets the performance requirements of NZBC Clause B2.3.1 (b), 15 years for the cavity system, Poren Bricks and plaster finish, and the performance requirements of NZBC Clause B2.3.1 (c), 5 years for the exterior paint system.

The StoPoren Brick Veneer Cladding System is expected to have a serviceable life of at least 30 years provided the system is maintained in accordance with this Appraisal and the Poren bricks, Poren lintels, brick ties and fixings and plaster are continuously protected by a weathertight coating and remain dry in service.

BRANZ Appraised

Sto Exterior Facade Paints

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Sto Exterior Facade Paints are durable natural facade paints and specialised crack treatment coatings for refurbishing buildings.

Similar to silicate paints, they are suitable for coatings on older substrates such as may be encountered when renovating historical buildings.

Incorporating iQ — Intelligent Technology; For many years Sto has conducted intensive research in the field of bionics. The result is facade paint with innovative surface functions and clear added-value — greater protection, durability and sustainability

StoArmat Render System for Axon Panel

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The StoArmat Render System has been specifically tested and detailed for application over James Hardie Axon Panel Smooth.

The StoArmat Plaster System has been appraised for use as a jointing and exterior plaster system for Axon Panel Smooth on buildings within the following scope:

The scope limitations of NZBC Acceptable Solution E2/AS1, Paragraph 1.1
Constructed with timber framing complying with the NZBC
With a risk score of 0-20, calculated in accordance with NZBC Acceptable Solution E2/AS1, Table 2
Situated in NZS 3604 Building Wind Zones up to, and including 'Very High'

The StoArmat Plaster System has been appraised for use as a jointing and exterior plaster system for EasyLap Panel on buildings subject to specific design up to an ultimate limit state (ULS) wind pressure of 2500 Pa:

Constructed with timber framing complying with the NZBC
Within the scope limitations of BRANZ Appraisal Certificate No. 466 (2020) EasyLap Panel for Texture Coating

The product will, if employed in accordance with the supplier's installation and maintenance requirements, assist with Clause B2 Durability: Performance B2.3.1(b), B2.3.1(c), Clause E2 External moisture: Performance E2.3.2, Clause F2 Hazardous building materials: Performance F2.3.1meeting provisions of the building code.

The Sto Armat Plaster System meets code compliance with NZBC Clause B2.3.1 (b), 15 years for the jointing and plaster system, and code compliance with NZBC Clause B2.3.1(c), 5 years for the exterior paint system.

BRANZ Appraised

StoLite Stucco Construction System

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The StoLite System is a lightweight Stucco on backerboard which offers a proprietary system to clad timber framed construction.

Sto Lite has been appraised as an external wall cladding system for buildings within the following scope:

The scope limitations of NZBC Acceptable Solution E2/AS1, Paragraph 1.1
Constructed with timber framing complying with the NZBC
With a risk score of 0-20, calculated in accordance with NZBC Acceptable Solution E2/AS1, table 2
Situated in NZS 3604 Building Wind Zones up to, and including 'Very High'

Sto Lite has also been appraised for weather tightness and structural wind loading when used on buildings subject to specific design up to a differential design ultimate limit state (ULS) wind pressure of 2500 Pa. Sto Lite must only be installed on vertical surfaces (except for tops of parapets, sills and balustrades. The system is appraised for use with aluminium window and door joinery that is installed with vertical jambs and horizontal heads and sills.

The product will, if employed in accordance with the supplier's installation and maintenance requirements, assist with meeting the following provisions of the building code:

Clause B1 Structure: Performance B1.3.1, B1.3.2, B1.3.3, B1.3.4
Clause B2 Durability: Performance B2.3.1(b)
Clause E2 External moisture: Performance E2.3.2
Clause F2 Hazardous building materials: Performance F2.3.1

Note: Sto Lite is expected to have a serviceable life of at least 30 years provided the system is maintained in accordance with this Appraisal, and the fibre cement sheets, fixings and plaster are continuously protected by a weathertight coating and remain dry in service.

BRANZ Appraised

StoStucco Cavity Plaster System

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The StoStucco Plaster System incorporates a European lath made from a stainless steel welded wire mesh with an absorbent sheet of perforated chip paper, and fixed over timber battens to form a cavity and allowing for a dry zone between the interior and exterior claddings.

The StoStucco Plaster Cavity System has been appraised as an external wall cladding system for buildings within the following scope:

The Scope limitations of NZBC Acceptable Solution E2/AS, Paragraph 1.1
Constructed with timber framing complying with the NZBC
With a risk score of 0-20, calculated in accordance with NZBC Acceptable Solution E2/AS1, Table 2

For weathertightness and structural wind loading when used on buildings subject to specific design up to a differential design ultimate limit state (ULS) wind pressure of 2500 Pa.

Must only be installed on vertical surfaces except for tops of parapets, sills and balustrades. The system is appraised for use with aluminium window and door joinery that is installed with vertical jambs and horizontal heads and sills.

The product will, if employed in accordance with the supplier's installation and maintenance requirements, assist with meeting the following provisions of the building code:

Clause B1 Structure: Performance B1.3.1, B1.3.2, B1.3.3, B1.3.4
Clause B2 Durability: Performance B2.3.1(b), B2.3.1(c), B2.3.2
Clause E2 External moisture: Performance E2.3.2
Clause F2 Hazardous building materials: Performance F2.3.1

Note: The StoStucco Plaster Cavity System meets the performance requirements of NZBC Clause B2.3.1 (b), 15 years for the cavity system and plaster finish, and the performance requirements of NZBC Clause B2.3.1 (c), 5 years for the exterior paint system.

The StoStucco Plaster Cavity System is expected to have a serviceable life of at least 30 years provided the system is maintained in accordance with this Appraisal, and the lath, fixings and plaster are continuously protected by a weathertight coating and remain dry in service.

BRANZ Appraised

Render Brick Construction

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Sto Plaster Systems – StoArmat Miral or StoMiral – are engineered to provide optimal protection and finish for all render brick construction.

The StoArmat Miral Plaster System on Render Brick has been appraised as a solid plaster systems for buildings within the following scope:

Up to 3 storeys, with a maximum height from ground to eaves of 10 m.
Designed and constructed in accordance with the scope limitations of NZS 3604, NZS 4210 and NZS 4229
For Supporting structures designed and constructed in accordance with the NZBC.
Suitable for use in all Wind Zones of NZS 3604 up to, and including, ‘Extra High’.

The StoArmat Miral Plaster System has also been appraised for bond, durability and weather tightness.

Must only be applied on vertical surfaces except for sills, concrete reinforced parapets and concrete reinforced balustrades. For use with aluminium window and door joinery that is installed with vertical jambs and horizontal heads and sills.

The product will, if employed in accordance with the supplier's installation and maintenance requirements, assist with meeting the following provisions of the building code:

Clause B2 Durability: Performance B2.3.1(b), B2.3.1(c)
Clause E2 External moisture: Performance E2.3.2
Clause F2 Hazardous building materials: Performance F2.3.1

Notes: The StoArmat Miral Plaster Systems meet the performance requirements of NZBC Clause B2.3.1 (b), 15 years for the plaster finishes, and the performance requirements of NZBC Clause B2.3.1 (c), 5 years for the exterior paint system.

BRANZ Appraised

EPS / ICF / Polystyrene Block Construction

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The StoArmat Miral Plaster System provides protection and finish for EPS/ICF block construction.

The StoArmat Miral Plaster System on EPS / ICF Block has been appraised as solid plaster systems for buildings within the following scope:

Up to 3 storeys, with a maximum height from ground to eaves of 10 m.
For Supporting structures designed and constructed in accordance with the NZBC.
Suitable for use in all Wind Zones of NZS 3604 up to, and including, ‘Extra High’.

The StoArmat Miral Plaster System has also been appraised for bond, durability and weathertightness.

Must only be applied on vertical surfaces except for sills, concrete reinforced parapets and concrete reinforced balustrades. For use with aluminium window and door joinery that is installed with vertical jambs and horizontal heads and sills.

StoArmat Miral Plaster System for EPS / ICF / Polystyrene Block Construction:

The product will, if employed in accordance with the supplier's installation and maintenance requirements, assist with meeting the following provisions of the building code:

Clause B2 Durability: Performance B2.3.1(b), B2.3.1(c)
Clause E2 External moisture: Performance E2.3.2
Clause F2 Hazardous building materials: Performance F2.3.1

Note: The StoArmat Miral Plaster Systems meet the performance requirements of NZBC Clause B2.3.1 (b), 15 years for the plaster finishes, and the performance requirements of NZBC Clause B2.3.1 (c), 5 years for the exterior paint system.

BRANZ Appraised

Concrete Block Construction

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The StoArmat Miral Render System provides protection, system reliability and finish for concrete block construction.

The StoArmat Miral Plaster System on Concrete Block has been appraised as solid plaster systems for buildings within the following scope:

Up to 3 storeys, with a maximum height from ground to eaves of 10m
For Supporting structures designed and constructed in accordance with the NZBC
Suitable for use in all Wind Zones of NZS 3604 up to, and including, 'Extra High'

The StoArmat Miral Plaster System has also been appraised for bond, durability and weather tightness.

The product will, if employed in accordance with the supplier's installation and maintenance requirements, assist with meeting the following provisions of the building code:

Clause B2 Durability: Performance B2.3.1(b), B2.3.1(c)
Clause E2 External moisture: Performance E2.3.2
Clause F2 Hazardous building materials: Performance F2.3.1

Notes: The StoArmat Miral Plaster Systems meet the performance requirements of NZBC Clause B2.3.1 (b), 15 years for the plaster finishes, and the performance requirements of NZBC Clause B2.3.1 (c), 5 years for the exterior paint system.

BRANZ Appraised

StoCalce Functio Interior Plaster System

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If there's one basic rule for creating a pleasant ambient interior climate, it's maintaining the humidity at a level that is neither too high nor too low.

Please refer to Sto Technical Data Sheets (TDS) on the Sto website

Sto interior products meet the most stringent environmental standards — Please refer to Sto Sustainability Data Sheets (SDS) via the Sustainability link.

Exterior Plaster Repair Systems

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The StoArmat Refurbishment plaster system is a well-engineered solution incorporating a StoFlexyl Filler and Sto Jointing Mesh with high crack prevention properties to provide reinforcement and flexibility over joints and cracks.

The StoArmat Refurbishment Render System is designed to cover off all aspects of the exterior weathertightness envelope including joinery openings, foundations, penetrations, parapets, and exterior construction elements.

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