OpenSystem - External wall insulation system
Verified by manufacturer 5 months ago
Breathable external wall insulation system.
Application
Breathable external wall insulation applications.
Description
The Baumit OpenSystem uses EPS wall insulation boards containing numerous holes of 2 to 3 mm diameter. These ensure high vapour permeability and enable water vapour to be released externally. The OpenSystem consists of 99% air and only a small proportion of EPS, which, in turn, requires very little energy to produce, therefore resulting in low environmental impact.
All components contain vapour-permeable insulation and thus allow the walls to breathe. This creates optimal living conditions whether in summer or winter.
Features and benefits:
- Unique OpenAir technology.
- Breathable insulation.
- Cosy healthy climate.
- Complete wall build-up from a long-lasting and durable polystyrene external wall insulation system.
- Perforations through the insulation material are used to create highly breathable insulation boards, improving the release of water vapour from the house, without adding extra cost for improved ventilation.
- Vapour permeable insulation diffuses more water vapour outside the home, preventing a build-up of condensation and also reduces the risk of mould.
- Ensures a comfortable indoor living climate thanks to controlled humidity and temperature.
- The combination of high breathability and vapour permeable insulation keeps temperatures regulated, for comfortable living conditions in both the summer and winter.
- The attractive and smooth surface of the Baumit external wall insulation system builds to an excellent finish for an insulation option that’s both appealing and high-performance.
- Polystyrene external wall insulation uses the best fixing technology, for a durable build that can stand the test of time.
- Easy application ensures that you can use the Baumit System on various substrates, and build to an even and hard-working finish with minimal effort.
- Each layer of the system works together, enforcing a bond and growing the thermal insulation and breathability.
System includes:
Base: new masonry or original base.
- Final Topcoat - Baumit StarTop is a highly weatherproof topcoat render, complete with silicon binder and a new functional filler, providing the building with a quick-drying finished façade surface in damp weather conditions.
- Primer - Baumit PremiumPrimer is a ready-to-use primer for synthetic and mineral decorative finishes. It has high covering power and regulates absorption.
- Basecoat - Baumit StarContact White is a vapour-permeable, adhesive and basecoat reinforcing render.
- Reinforcement - Baumit StarTex is warp-resistant and alkali-resistant glass fibre mesh that is used to produce a reinforced mortar layer on torn old rendered facades.
- Insulation - Baumit OpenTherm is a highly breathable, thermal insulation made from expanded polystyrene. The insulation is specially designed for brickwork and similarly breathable masonry.
- Adhesive - Baumit StarContact White is a vapour-permeable, adhesive and basecoat reinforcing render.
- Fixing - Baumit StarTrack adhesive anchors bring many advantages. No thermal bridges and allows good adhesion without additional fixing.
General information
Color | White Guidance for specification option: Brilliant white and colours which can be tinted in the Life colours in rows 2 to 9. Other |
Finish | Textured |
Material | Render Expanded polystyrene (EPS) Glass Fibre Silicone Polymer-modified cement |
Shape | Formless |
Length | Bespoke |
Width | Bespoke |
Height | Bespoke |
Warranty description | Ten year |
Uniclass | |
CAWS | M21/210 External wall insulation system M21/20 External wall insulation system . . . . . . |
Specification data - External wall insulation systems
Preparation | Baumit UniPrimer.Guidance for specification option: Ready-to-use, multi-purpose primer to regulate absorption and improve adhesion for all Baumit render and paint finishes. Suitable for use as part of all Baumit EWI Systems. Compliant with ETAG 004 European System Standards for EWI systems with rendering. For external use. Baumit PremiumPrimerGuidance for specification option: Ready-to-use, waterborne quartz-filled primer for all synthetic and mineral decorative finishes. Use to prepare a surface prior to applying render to regulate absorption and for better application. The new filler grain ensures excellent application and texture of the topcoat. Suitable for use as part of all Baumit EWI Systems. Compliant with ETAG 004 European System Standards for EWI systems with rendering. |
Insulation | |
Material | openTherm insulation.Guidance for specification option: Grey, water vapour permeable, perforated EPS boards. Part of the ultimate highly breathable EWI system Baumit OpenSystem, with improved thermal insulation. Compliant with ETAG 004 European System Standards for EWI systems with rendering. Size: 500 x 1000 mm. |
Additional mechanical fixings | Mechanical Fixing (Masonry).Guidance for specification option: Baumit STR U is designed for mechanical fastening of polystyrene and mineral wool insulation boards. Suitable for concrete, solid brick, hollow and perforated brick, light concrete, porous concrete. Part of Baumit EWI systems. Baumit StarTrack Red.Guidance for specification option: Baumit StarTrack Red allows a good adhesion without additional fixing for Baumit OpenSystem and other Baumit EWI systems. Additional mechanical fixing as an alternative to standard dowelling. For use with perforated and solid masonry and concrete. Existing old plaster up to a maximum total thickness of 40 mm can be bridged. |
Beads and trims | Expansion Joint 'E' Profile 2.5 m.Guidance for specification option: Expansion joint profile with alkali-resistant fibreglass reinforcement and render stop beads. For sealing and incorporating existing structural movement joints into an external wall insulation system. The E-form profile is for joints which are in the plane of the wall. Size: 125 x 125 mm. Corner Bead with mesh 2.5 m.Guidance for specification option: PVC corner bead with mesh. For protection of 90 degree angles on façades. 6 mm Stop Bead with mesh 2.5 m.Guidance for specification option: PVC stop bead with alkali-resistant fibre glass reinforcement. Suitable as a render/plaster stop for final coats. Also suitable for round arches. Window Profile Ideal 2.4 m.Guidance for specification option: Self adhesive rigid, white PVC window seal bead with compressed polyurethane sealing tape and reinforcement, for the sealing and decoupling of connection joints at window and door frames, for use in low energy and passive construction. Window Profile Flexible 2.4 m.Guidance for specification option: Self adhesive rigid, white PVC window seal band with compressed polyurethane sealing tape and reinforcement, for the sealing and decoupling of connection joints at window and door frames. For use in low energy and passive constructions. Plastic Base Profile 2 m.Guidance for specification option: BaseProfile made of plastic to minimize thermal bridges, with drip edge trim, bonded glass fibre mesh and connector pin system to prevent cracking occurring at the connection joints. Width of mesh: 125 mm. |
Render carrier or reinforcement | |
Material | StarTex Fine Mesh.Guidance for specification option: Fine, non-slip, alkali-resistant textile glass fabric for embedding in adhesive and leveling compounds, system-tested, tear strength ≥ 2.0 kN / 5 cm. Weight: approx. 160 g / m². |
Fixings | Guidance for specification option: Consult manufacturer and insert requirements or omit. |
Render | |
Application | Guidance for specification option: Consult manufacturer and insert requirements. |
Material | Baumit PuraTop.Guidance for specification option: Weather resistant topcoat render for intense and brilliant colours. Ensure long-lasting colour stability through the excellent pigment binder. Featuring Baumit Cool Pigments technology for darker coloured facades. Available in the full range of Baumit Life colours. Baumit StarContact White.Guidance for specification option: Natural, white, flexible, mineral-based, dry adhesive and basecoat render for Baumit EWI systems. Also suitable as a bonding mortar onto concrete. Suitable for use as part of Baumit StarSystem, StarSystem Mineral, StarSystem Nature and Plinth System. Baumit StarContact.Guidance for specification option: Mineral-based, dry adhesive and basecoat render for Baumit external wall insulation systems. Baumit StarTop.Guidance for specification option: Ready to use, topcoat render (thin coat finish render) for external use to create a stippled texture. Tested to EN 15824 standards and in a system to ETAG 004 standards. |
Decorative finish | Baumit SilikonTop.Guidance for specification option: Ready-to-use, silicone resin render with scratched or dragged grain texture. Highly durable and suitable for almost all requirements. Water vapour permeable, extremely water repellent, dirt-resistant and versatile. Available in the largest range of colours. Baumit SilikonTop Fine.Guidance for specification option: Ready-to-use silicone resin render, for achieving a fine, smooth texture. Highly water resistant and water vapour permeable. For external use. |
Colour | Brilliant white.Guidance for specification option: Brilliant white and colours which can be tinted in the Life colours in rows 2 to 9. Consult manufacturer for details and insert requirements. |
Protective coating | Baumit SpeedTop.Guidance for specification option: Ready to use additive for SilikonTop and GranoporTop. Provides accelerated setting and enhanced durability on the façade in high humidity and low temperatures, as well as in fog. Can be added in temperatures of >+1°C and <15°C and with relative humidity of <95%. |
System accessories | Guidance for specification option: Consult manufacturer and insert requirements or omit. |
Bedding/ bonding mortar | Baumit MC55 W. |
Sustainability data
Contains Red List materials | No |
Country of material origin | Austria |
Country of product manufacture | Austria |
Material | Render Expanded polystyrene (EPS) Glass Fibre Silicone Polymer-modified cement |
Literature
OpenSystem - Method Statement