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StoTherm Vario M, mechanically-fixed external wall insulation system - External wall insulation system

Name: StoTherm Vario M, mechanically-fixed external wall insulation system - External wall insulation system
Brand: Sto Ltd
SKU: i9tyy9QCn87KWYUHsRMHZN

Verified by manufacturer 4 months ago

Sto Ltd

Third party certifications:

BBA Agrément Certificate
Certificate type

A highly durable external wall insulation system with expanded polystyrene (EPS) insulation boards and fire retardant additive as standard and mineralic render, providing excellent thermal performance

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BOS

+44 (0)330 024 2666 Website

Application

Suitable for fixing to either bare concrete or masonry, previously rendered or painted concrete or masonry, or onto a light steel framed or timber framed construction with suitable sheathing board. For new build or refurbishment. Can be used on buildings with a storey level up to 11 m above ground level.

Description

A high performance, cost-effective EPS insulation system with a mineralic reinforcing coat. Suitable for a diverse range of substrates including brickwork, blockwork, concrete and various sheathing boards. StoTherm Vario K provides excellent thermal insulation and is suitable for application onto curved substrates. The mechanical fixing for this system allows the correction of irregularities on masonry and panel substrates by up to 60 mm.

This EWI system can be finished with the complete range of Sto weather resistant, vapour permeable, synthetic renders in a variety of textures and over 1,000 colours. Sto Brick Slips or StoDeco Profiles can also be applied for an alternative facade finish.

StoTherm Vario systems are suitable for use on buildings with storeys up to 11 m in height.

General information

Color	- Manufacturer guidance Colour range available, contact manufacturer for details.
Finish	- Manufacturer guidance Finish range available, contact manufacturer for details.
Material	Polystyrene Expanded polystyrene (EPS)
Length	1000 mm 1200 mm Bespoke
Width	500 mm 600 mm Bespoke
Height	60 mm 200 mm Bespoke
Warranty description	Five year Guidance for specification option: Applicable to installations by registered installers. In some circumstances, the warranty period may be extended upon application prior to commencing installation.

Uniclass	Ss_25_45_72_28 External wall insulation systemsPrimary
CAWS	M21/20 External wall insulation system . . . . . . M21/210 External wall insulation system

Specification data - External wall insulation systems

Support rails and brackets	-
Boards	-
Material	Guidance for specification option: Board substrate: Various types of cement particle, calcium cement or similar boards. Consult manufacturer for recommendations.
Insulation	-
Material	Sto-EPS board K90/FRA , square edged for use with Sto Rotofix Mini (1000 x 500 x t) 0.036 W/mK. Sto-EPS board K90/FRA, tongue and groove edged for use with Sto Rotofix Plus (1000 x 500 x t) 0.036 W/mK. Sto-EPS grey Lambdatherm board K90/FRA, square edged for use with Sto Rotofix Mini (1000 x 500 x t) 0.030 W/mK. Sto-EPS grey Lambdatherm board K90/FRA, tongue and groove edged for use with Sto Rotofix Plus (1000 x 500 x t) 0.030 W/mK.
Additional mechanical fixings	Sto Rotofix Mini with square edged boards 60–120 mm. Sto Rotofix Plus Green 120T with tongue and groove edged boards 80 - 140 mm. Guidance for specification option: 10 mm increments. Sto Rotofix Plus Black 160T with tongue and groove edged boards 140 - 200 mm. Guidance for specification option: 10 mm increments. Manufacturer guidance Consult manufacturer for details and recommendations.
Fire barriers and stops	-
Material	Mineral fibre boards. Mineral fibre lamella.
Fixings	Rotofix Plus / Mini; StoLevell Uni adhesive; Stainless steel mechanical fixings.
Beads and trims	Sto-Aluminium starter track profile - for use at base of system. Sto-Aluminium Flexicurve starter track - for use at base of system to radius. Sto-Starter Track Connectors - to aid alignment of starter track profiles. Sto-Clip-on Profile Novo - stainless steel profile for use with aluminium starter track profile to provide additional crack resistance at base of system. Sto-PVC Mesh Angle Bead - for reinforcement of 90º external angles. Sto-Armour Angle - for reinforcement of internal angles. Sto-Mesh Angle Flexibead Ideal - variable angle bead on a roll for reinforcement of external angles. Sto-Seal Joint Sealing Tape Lento - Pre-compressed joint sealing tape for use at interfaces with other elements of the building envelope. Sto-Seal Bead Supra - Head and reveal seal profile with integrated sealing tape and glass fibre mesh. Sto-Seal Bead Perfekt - Head and reveal seal profile with telescopic mechanism and integrated glass fibre mesh. Sto-Seal Bead Expert Pro - Head and reveal seal profile with integrated glass fibre mesh for side / edge installation. Sto-Stop Bead Standard - Head and reveal profile with integrated glass fibre mesh. Sto-Starter Track PH-P - insulation support profile for use at the base of the system in conjunction with Sto-Plinth PVC Profile PH, particularly suited to passive house construction. Sto-Plinth PVC Profile PH - insulation support / drip profile for use at the base of the system in conjunction with Sto-Starter Track PH-P, particularly suited to passive house construction. Sto-NHBC Head Channel Profile Aluminium - for use over openings through the system where a drained cavity is required. Sto-NHBC Soffit Drain Profile Aluminium - for use at facade / soffit intersections where a drained cavity is required. Sto-Clip-on 3 mm Bead - bead on a roll with integrated glass fibre mesh for use with aluminium starter track profile to provide additional crack resistance at base of system. Sto-Clip-on Profile Perfekt - bead with integrated glass fibre mesh for use with aluminium starter track profile to provide additional crack resistance at base of system.
Movement joints	-
Form with	Sto-Expansion Joint Type E - for use at horizontal / vertical movement joints. Sto-Expansion Joint profile Type V - for use at vertical movement joints at internal angles.
Sealant	Sto-Expansion Joint Tape Type 1 light grey - for joint width 10–18 mm. Sto-Expansion Joint Tape Type 1 anthracite - for joint width 10–18 mm. Sto-Expansion Joint Tape Type 2 light grey - for joint width 17–32 mm. Sto-Expansion Joint Tape Type 2 anthracite - for joint width 17–32 mm. Sto-Expansion Joint Tape Type 3 light grey - for joint width 28–40 mm. Sto-Expansion Joint Tape Type 3 anthracite - for joint width 28–40 mm. Sto-Expansion Joint Cover E (vertical joints only). Sto-Expansion Joint Cover V.
Accessories	Sto-Expansion Joint - cross piece. Sto-Expansion Joint - T piece. Sto-Expansion Joint Profile - external corner. Sto-Expansion Joint Profile - internal corner.
Render carrier or reinforcement	-
Material	Sto-Glass Fibre Reinforcing Mesh - standard mesh embedded in reinforcing coat. Sto-Armour Mesh - reinforcing mesh embedded in reinforcing coat prior to standard mesh for additional impact resistance. StoLevell Duo Plus reinforcing coat. StoLevell Uni reinforcing coat. Manufacturer guidance Reinforcing mesh: Sto-Armour mesh – additional reinforcing mesh used in conjunction with standard mesh to provide increased impact resistance. Mesh to be applied into base coat render ensuring the reinforcing mesh is fully embedded.
Render	-
Material	Stolit - cement free, acrylic resin based organic render finish. StoSilco - cement free silicone resin based organic render finish with hydrophobic properties. StoLotusan - cement free organic render finish with Lotus effect® technology with super-hydrophbic properties. StoSuperlit - cement free acrylic resin based organic render finish with variegated coloured natural stone aggregate in a clear binder. StoMiral - mineral finishing render. Manufacturer guidance Render finish coat: Render finishes are available in a range of up to 800 colours from the StoColor System, and a further 300 colours from the Sto Architectural colours range. Other finishes: StoBrick clay brick slips, Sto Resin Brick Slips, Sto-EcoShapes, StoDeco Profiles, StoDeco Rustications, plus other options may be used as an alternative to or in conjunction with render finishes - consult manufacturer for details.
Decorative finish	Stolit K - Acrylic resin bound render with stippled texture. Stolit R - Acrylic resin bound render with rilled texture. Stolit MP - Acrylic resin bound render with rustic texture. StoSilco K - Silicone resin bound hydrophobic render with stippled texture. StoSilco R - Silicone resin bound hydrophobic render with rilled texture. StoSilco MP - Silicone resin bound hydrophobic render with rustic texture. StoLotusan K - Super-hydrophobic render finish with stippled texture and Lotus Effect. StoLotusan MP - Super-hydrophobic render finish with rustic texture and Lotus Effect. StoSuperlit K - Acrylic bound render finish with exposed natural stone aggregate in a clear binder. Stolit Milano - Acrylic resin bound render finish with fine grain used either alone or with Stolit K / Stolit Effect to achieve special render effects. Stolit Effect - Acrylic resin bound render finish used to achieve special render effects. StoMiral K - mineral render finish with stippled texture. StoMiral R - mineral render finish with rilled texture. StoMiral MP - mineral render finish with rustic texture. Manufacturer guidance Finish coat: Render finishes are available in a range of up to 800 colours from the StoColor System and a further 300 colours from the Sto Architectural colour range. X-black near-infrared reflecting formulations available with some finishes where dark or intense colours are required. Consult manufacturer for information / details. Other finishes: StoBrick clay brick slips, Sto-Resin Brick Slips, Sto-EcoShapes, StoDeco Profiles, StoDeco Rustications, plus other options may be used as an alternative to or in conjunction with render finishes. Consult manufacturer for information / details.
Colour	- Manufacturer guidance Render finishes are available in a range of up to 800 colours from the StoColor System and a further 300 colours from the Sto Architectural colour range.
System accessories	StoFix Mini ND fixing block 100 x 100 mm. Guidance for specification option: 100 x 100 mm high density EPS foam block set into insulation prior to application of render coatings, suitable to accept direct fixing of lightweight items or for use as an anti-compression block where fixing heavy items back to the substrate. StoFix Mini ND fixing block 150 x 100 mm. Guidance for specification option: 150 x 100 mm high density EPS foam block set into insulation prior to application of render coatings, suitable to accept direct fixing of lightweight items or for use as an anti-compression block where fixing heavy items back to the substrate. StoFix Maxi HD fixing block 198 x 198 mm. Guidance for specification option: 198 x 198 mm rigid polyurethane foam block set into insulation prior to application of render coatings, suitable for use as an anti-compression block where fixing heavy items back to the substrate. StoFix Rondelle. Guidance for specification option: polypropylene disc recessed into insulation prior to application or render cotings, suitable for fixing lightweight items. StoFix Spiral ID60. Guidance for specification option: spiral fixing for post-installation fixing of lightweight items. StoFix Iso-Dart. Guidance for specification option: mounting anchor for post-installation fixing of medium weight items to masonry substrates.

Intermediate coat	Sto-Primer - filled, pigmented organic undercoat. StoPrep Miral - filled pigmented silicate undercoat for use prior to application of mineral render finishes.
Colour/ Aggregate	- Manufacturer guidance Aggregate: Stolit: 1.5, 2, 3 and 6 mm grain size. StoSilco and StoLotusan: 1.5, 2 and 3 mm grain size. StoSuperlit: 2 mm grain size.
Third party certification:	BBA Agrément Certificate 95/3132, Product sheet 2.

Sustainability data

Country of material origin	- Manufacturer guidance Various, consult manufacturer for details.
Country of product manufacture	- Manufacturer guidance United Kingdom and Germany, consult manufacturer for details.
Material	Polystyrene Expanded polystyrene (EPS)
Embodied carbon A1-A3 (production stage) as defined in BS EN 15804	- Manufacturer guidance Varies.
Recyclability	- Manufacturer guidance Fully recyclable (insulation).
Recycled content As defined in clause 7.8 of BS EN ISO 14021	- Manufacturer guidance Varies dependent on use.

BIM objects

This BIM object has been authored to meet the requirements of the NBS BIM Object Standard.

Find out more about the NBS BIM Object Standard.

Platform	Compatible	Version
Revit	-	5
IFC	-	5

Third party certifications

BBA Agrément Certificate

95/3132 Product sheet 11 StoTherm Vario M Masonry

BBA Agrément Certificate

95/3132 Product sheet 12 StoTherm Vario M LWSF

Literature

StoTherm External wall insulation systems guide

StoRend Render Systems Guide

Case studies

Queen Elizabeth University Hospital, Glasgow (GB)

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StoTherm Vario M, mechanically-fixed external wall insulation system - External wall insulation system

Application

Description

General information

Color

Manufacturer guidance

Finish

Manufacturer guidance

Material

Length

Width

Height

Warranty description

Uniclass

CAWS

Specification data - External wall insulation systems

Support rails and brackets

Boards

Material

Insulation

Material

Sto-EPS board K90/FRA , square edged for use with Sto Rotofix Mini (1000 x 500 x t) 0.036 W/mK.

Sto-EPS board K90/FRA, tongue and groove edged for use with Sto Rotofix Plus (1000 x 500 x t) 0.036 W/mK.

Sto-EPS grey Lambdatherm board K90/FRA, square edged for use with Sto Rotofix Mini (1000 x 500 x t) 0.030 W/mK.

Sto-EPS grey Lambdatherm board K90/FRA, tongue and groove edged for use with Sto Rotofix Plus (1000 x 500 x t) 0.030 W/mK.

Additional mechanical fixings

Sto Rotofix Mini with square edged boards 60–120 mm.

Sto Rotofix Plus Green 120T with tongue and groove edged boards 80 - 140 mm.

Sto Rotofix Plus Black 160T with tongue and groove edged boards 140 - 200 mm.

Manufacturer guidance

Fire barriers and stops

Material

Mineral fibre boards.

Mineral fibre lamella.

Fixings

Rotofix Plus / Mini; StoLevell Uni adhesive; Stainless steel mechanical fixings.

Beads and trims

Sto-Aluminium starter track profile - for use at base of system.

Sto-Aluminium Flexicurve starter track - for use at base of system to radius.

Sto-Starter Track Connectors - to aid alignment of starter track profiles.

Sto-Clip-on Profile Novo - stainless steel profile for use with aluminium starter track profile to provide additional crack resistance at base of system.

Sto-PVC Mesh Angle Bead - for reinforcement of 90º external angles.

Sto-Armour Angle - for reinforcement of internal angles.

Sto-Mesh Angle Flexibead Ideal - variable angle bead on a roll for reinforcement of external angles.

Sto-Seal Joint Sealing Tape Lento - Pre-compressed joint sealing tape for use at interfaces with other elements of the building envelope.

Sto-Seal Bead Supra - Head and reveal seal profile with integrated sealing tape and glass fibre mesh.

Sto-Seal Bead Perfekt - Head and reveal seal profile with telescopic mechanism and integrated glass fibre mesh.

Sto-Seal Bead Expert Pro - Head and reveal seal profile with integrated glass fibre mesh for side / edge installation.

Sto-Stop Bead Standard - Head and reveal profile with integrated glass fibre mesh.

Sto-Starter Track PH-P - insulation support profile for use at the base of the system in conjunction with Sto-Plinth PVC Profile PH, particularly suited to passive house construction.

Sto-Plinth PVC Profile PH - insulation support / drip profile for use at the base of the system in conjunction with Sto-Starter Track PH-P, particularly suited to passive house construction.

Sto-NHBC Head Channel Profile Aluminium - for use over openings through the system where a drained cavity is required.

Sto-NHBC Soffit Drain Profile Aluminium - for use at facade / soffit intersections where a drained cavity is required.

Sto-Clip-on 3 mm Bead - bead on a roll with integrated glass fibre mesh for use with aluminium starter track profile to provide additional crack resistance at base of system.

Sto-Clip-on Profile Perfekt - bead with integrated glass fibre mesh for use with aluminium starter track profile to provide additional crack resistance at base of system.

Movement joints

Form with

Sto-Expansion Joint Type E - for use at horizontal / vertical movement joints.

Sto-Expansion Joint profile Type V - for use at vertical movement joints at internal angles.

Sealant

Sto-Expansion Joint Tape Type 1 light grey - for joint width 10–18 mm.

Sto-Expansion Joint Tape Type 1 anthracite - for joint width 10–18 mm.

Sto-Expansion Joint Tape Type 2 light grey - for joint width 17–32 mm.

Sto-Expansion Joint Tape Type 2 anthracite - for joint width 17–32 mm.

Sto-Expansion Joint Tape Type 3 light grey - for joint width 28–40 mm.

Sto-Expansion Joint Tape Type 3 anthracite - for joint width 28–40 mm.

Sto-Expansion Joint Cover E (vertical joints only).

Sto-Expansion Joint Cover V.

Accessories

Sto-Expansion Joint - cross piece.

Sto-Expansion Joint - T piece.

Sto-Expansion Joint Profile - external corner.

Sto-Expansion Joint Profile - internal corner.

Render carrier or reinforcement

Material

Sto-Glass Fibre Reinforcing Mesh - standard mesh embedded in reinforcing coat.

Sto-Armour Mesh - reinforcing mesh embedded in reinforcing coat prior to standard mesh for additional impact resistance.

StoLevell Duo Plus reinforcing coat.

StoLevell Uni reinforcing coat.

Manufacturer guidance