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StoTherm Masonry Insulation
Description

StoTherm external wall insulations systems conserve energy by wrapping the building in a thermally-resistant envelope, reducing energy bills and CO2 emissions. With over 50 years of system development including innovative components, StoTherm Insulation Systems lead the way in sustainable, durable, functional and versatile facades; meeting and exceeding building insulation requirements.

StoTherm Masonry Insulation is an exterior insulation finishing system (EIFS) for concrete masonry, in-situ or pre-cast concrete walls. Consisting of 40 to 100mm and over thick EPS StoTherm Panels or StoTherm+ Panels which increase R-values by up to a further 20%. Where designers want to remove foamed plastics completely, the EPS can be replaced by StoTherm Mineral Wool Panels. The system has been designed with minimal thermal conductivity and no thermal bridging.

Installations are carried out by a Sto Registered Licensed Building Practitioner with the added protection of a Sto 15 or 20 Year Warranty and StoService Assurance, guaranteeing building code compliant materials are used and application meets building code standards, including a service plan for long-term security.

Sto, a world leader in manufacturing insulated render systems has provided over 150 million square metres of insulated cladding to date and has been tried and tested in every climate around the world for proven insulation performance.

Key Features
  • BRANZ Appraised
  • 15 to 20-year warranty with a maintenance schedule
  • Complete installation and supply by Sto registered LBP contractor
  • Existing and new buildings up to high-rise level
  • Combats condensation and mould by providing an external dew point
  • Designed with minimal thermal conductivity and thermal bridging
  • Energy-efficient — reducing energy bills and CO2 emissions
  • High impact-resistant load-bearing structure to more than 60 joules
  • Very high crack resistance
  • Highly weather-resistant
  • Huge choice of renders, colours and surface design elements
  • StoTherm Mineral Wool Panels are available where EPS is not suitable
Scope of Use

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
Limitations on Use
  • 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
NZS 3604 Wind Zone Very High suitable
Very High WInd Zone
Statement of Building Code Compliance

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.

Other Performance Attributes

Installations are carried out by a Sto Registered Licensed Building Practitioner with the added protection of a StoArmat 15 or 20 year warranty and StoService Assurance, guaranteeing building code compliant materials are used and application meets building code standards, including a service plan for long-term security.

B1 Structure compliant
Structure
B2 Durability compliant
Durability
E2 External Moisture compliant
External Moisture
F2 Hazardous Building Materials compliant
Hazardous Building Materials
H1 Energy Efficiency compliant
Energy Efficiency
BRANZ Appraised
BRANZ Appraised
Documents
BIM files (link to page on supplier website)
CAD/PDF (link to page on supplier website)
Data Sheet
Independent Appraisal (BRANZ)
Sustainability
Warranty
Specification Clause/Guide
Installation and Operation
Brochure

Sto supply facade insulation systems and manufacture high-quality exterior and interior render systems and coatings worldwide.

Product Enquiries

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