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The StoTherm Masonry Insulation System is an exterior insulating and finishing system for concrete masonry, in-situ or pre-cast concrete walls. consisting of 40 to 60 mm thick EPS StoTherm Panels or Sto Therm + panels which increase R-Values by up to a further 20%.
StoTherm Insulation Panels are fixed with anchors over concrete block to prevent any thermal bridging. The panels are basecoated and levelled to provide a thick solid plaster base for additional reinforcement, StoArmat plaster plus StoMesh. StoArmat is cement-free, ready-to-use, high elasticity plaster, providing maximum crack and shock resistance then that of six times of cement based products.
The Glass fibre mesh is an alkali-resistant reinforcing mesh with absolutely uniform force absorption and reliably dissipates tensile and shear stress. The façade is then finished with the perfect interlocking components: StoLit finishing render plus a StoCoating of choice.
The StoTherm Masonry Insulation System has been appraised as an exterior insulating and finishing system for buildings within the following scope:
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.
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.
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:
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.
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.
Sto supply facade insulation systems and manufacture high-quality exterior and interior render systems and coatings worldwide.Product Enquiries