StoTherm Masonry Insulation
Insulation Systems for Concrete Masonry, In-situ or Pre-cast Concrete Walls
Overview
With over 50 years of system development and testing, StoTherm external wall insulation systems lead the way in energy-efficient facades, for both new-build and refurbishment projects. Wrapping the building in a thermally-resistant envelope; saving energy, preventing CO2 emissions and providing a healthy living environment.
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.
Brochure
A non-combustible, mineral-wool insulation system for fire protection
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Benefits at a glance
StoTherm is one of the world's most successful facade insulation systems. As one of the first external wall insulation systems, it was developed from the outset with a focus on safety and long-term material behaviour and has since been continually improved.
- BRANZ Appraisal No. 604
- 15 or 20 year warranty with maintenance schedule
- External dew point
- Combats condensation and mould
- Designed with minimal thermal conductivity and thermal bridging
- Installation by Sto Registered Contractor (Licensed Building Practitioner)
- Easy to cut and detail plus easy assembly
- Very high crack resistance
- Highly weather-resistant
- StoFlexy meshed waterproofing for horizontal surfaces and foundations
- Breathable and vapour permeable
- Existing and new buildings up to high-rise level
StoTherm Armat Insulation System
StoTherm Armat Masonry Insulation is a BRANZ appraised, high performance insulation and render system installed over masonry construction. The system includes StoTherm Panels, StoTherm Anchors and uPVC flashings to lock into junctions and joinery forming a neat weathertight seal. Render application includes a mineral-basecoat render, followed by StoArmat synthetic render with fibreglass mesh, providing engineered reinforcement to reliably dissipate tensile, seismic and shear stress. Finished in your choice of Stolit coloured finishing render and StoColor facade paint or clear sealer.
Installations are carried out by a Sto Registered Contractor (Licensed Building Practitioner), with the added protection of a StoArmat 15 or 20 Year Warranty with StoService Assurance, ensuring the materials used and application meets building code standards, including a service plan for long-term security.
StoTherm Armat Insulation Construction
Click on each of the layers below to view the components of the system.
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Adhesive: Gluecoat Mortar
02
Insulation: Expanded Polystyrene Sheet
60/100mm "S/M" grade self-extinguishing sheet, manufactured to AS 1366 Part 3 by an approved manufacturer.
03
StoTherm Anchors
Anchors are installed countersunk and capped with ST Insulation Cap to avoid thermal bridging.
Click here to view the procedure.
04
Basecoat: StoLevell Novo Render
Lightweight EPS bead mineral render with good build properties, water retention agents and machine application properties.
05
Reinforcement Render: StoArmat Render
An organic, weather resistant, cement-free and breathable, high-impact render, with a crack resistance six times higher than that of standard cement-based plasters.
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Plus: Sto Glass Fibre Mesh 4/7mm
Easy to install, meets the highest requirements for crack, stress and alkalinity resistance.
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Finishing Render: Stolit Renders
Organically bound, highly weather resistant, strong, hard-wearing, impact-resistant, pre-coloured finishing renders. (No cement)
Stolit K Range
Stolit MP & MP Natural
Stolit Milano
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Coating:
StoColor coating based on IQ Technology for functional facades or a StoClear sealer.
StoColor Maxicryl
StoColor Dryonic
S-Protect SC Clear Sealer
BRANZ Appraisal 604
StoArmat 15 or 20 Year Warranty
with StoService Assurance
Finishes
Stolit: Coloured Finishing Renders
Stolit organic finishing renders are manufactured in Germany incorporating the latest technology; certified globally and successfully applied to rendered substrates in every climatic zone for over 50 years.
The Stolit range provides the perfect combination of properties: durable, strong, hard-wearing, impact-resistant, malleable, weather-resistant, colour-stable and highly resistant to microorganisms. In addition, its vapour permeability allows your building to breathe while still repelling water.
Coloured Self-Gauging Float Finish Renders: |
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Stolit K 1.0mm |
Stolit K 1.5mm |
Stolit K 2.0mm |
Stolit K 3.0mm |
Coloured Fine Float, Sponge, or Light Adobe Finish Renders: |
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Stolit MP |
Stolit MP Natural |
Stolit Milano |
Facade Coatings
StoColor facade paints and StoClear sealers are a range of a serviceable coatings embodying intelligent technology for a range of surface functions to compliment the architectural structure and design. The StoColor System with 1000 shades, AC Architectural Colors, or matched to any colour using the Sto Spectrometer, provides a clear framework and systematic approach to colour based on integrated layers, combining texture and colour for aesthetic appeal.
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StoColor Maxicryl |
StoColor Dryonic |
S-Protect SC Clear Sealer |
StoColor System
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Data Sheets
Download a Data Sheet:
Technical Datal Sheet (TDS) / Material Saftey Data Sheet (MSDS) / Sustainability Data Sheet (SDS)
Primers / Sealers:
Reinforcement Mesh:
Reinforcement Render / Base Render:
Finishing Renders:
Coatings:
Specifications & BRANZ Appraisal
Download a Technical Specification
Please register all completed Sto specifications to info@sto.co.nz to ensure project confirmation and Sto warranty.
Download a BRANZ Appraisal
CAD or PDF details
Disclaimer: These drawings have been issued as a guideline. The sequence work covers various building components, each trade is responsible to ensure their elements are fully installed, including all waterproofing / sealant / flashings as is applicable.
Last updated January 2024
