| Facade | External wall insulation | External Wall Insulation System Guide

Combining form and function. In a typical dwelling, around 30 % of the energy used to heat or cool a room is wasted due to poorly insulated walls. Sto external wall insulation systems dramatically cut energy loss by wrapping the building in a thermally resistant envelope, helping to reduce energy bills and CO2 emissions. They also provide lasting protection for the entire fabric of the building. External wall insulation systems embody our belief in ‘Building with conscience’. Performance is just part of the story. Sto systems can be finished in a wide range of colours and textures using our classic...

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External Wall Insulation Systems The importance of well-insulated buildings In recent years there has been a huge increase in social and political pressure to minimise unnecessary energy consumption. Diminishing fossil fuels and rapidly increasing energy bills are a cause for concern around the Heating and cooling buildings is a considerable cost for both domestic and commercial property owners. Significant, ongoing savings can be made if the entire building is insulated properly. Sto has a market- leading range of external wall insulation (EWI) systems to help reduce energy consumption and energy...

Substrate requirements Substrate quality System Fixing method Fair-face tolerance Curved substrate Sound substrate Friable and unreliable StoTherm Classic, StoTherm Mineral & StoTherm Vario StoVentec Adhesive fix < 1 cm Mechanical fix < 3 cm Adjustable sub-construction 4-40 cm Unsuitable Not ideal Suitable External wall insulation system guide | 5

Design options Quality render finishes for creative designs. Sto believes that there is no reason why choosing an external wall insulation system should limit your creativity. StoTherm and StoVentec systems offer the architect a diverse palette of creative options. StoTherm and StoVentec systems are compatible with our range of innovative, through-coloured, thin coat renders, including the Lotus-Effect® water and dirt repellent render. Sto renders are available in a range of grain sizes and textures. Up to 800 colours are available, depending on the finish, and can be combined with Sto embellishments,...

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Decorative embellishments More than just render. Surface detailing is not always a creative consideration. Planning authorities can insist that the architectural design of new projects should match the appearance of existing buildings in the surrounding area. How can this be reconciled with the need to meet thermal insulation requirements using external wall insulation systems? In the UK and Ireland, brick and stone facades are commonplace. Sto offers a full range of decorative embellishments that are in-keeping with the surroundings, and are compatible with Sto external wall insulation systems....

Manufactured from acrylic render, Sto Brick Slips can be custom made in any of the 800 colours of the StoColor System, and in a range of sizes and textures. They can also be custom made to match existing brickwork. StoDeco Profiles Whether you are replicating the profiles on a renovation project, or looking to create a contemporary, modern look, StoDeco Profiles are the ideal option to meet your requirements. Made from Verofill, a lightweight, long-lasting material that is easy to form, StoDeco Profiles can be manufactured to individual specifications, including logos and other custom-created...

StoTherm Classic The original EPS insulation system. Over 40 years of development and carefully chosen components have made StoTherm Classic a durable, functional and versatile choice for meeting and exceeding building insulation requirements. StoTherm Classic is available in two fixing methods for a variety of substrates: StoTherm Classic K Adhesive fixing for fast and easy installation. StoTherm Classic M Mechanical rail fixing to overcome surface irregularities. Design • Extremely flexible, making it ideal for curved structures. • Compatible with all Sto renders, Sto Brick Slips and StoDeco...

1. Substrate 2. Adhesive coat / mechanical rail system 3. Expanded polystyrene insulation board 4. Cement-free reinforcing coat 5. Reinforcing mesh 6. Decorative render finish 1 2 3 4 5 6 External wall insulation system guide | 11

StoTherm Mineral Mineralic insulation system for extra fire security. A mineralic insulation system built up of mineral fibre insulation boards or lamella strips for trusted fire protection. StoTherm Mineral is available in three fixing StoTherm Mineral K Adhesive and dowel fixing of mineral fibre insulation board. StoTherm Mineral M Mechanical rail fixing to overcome surface irregularities. StoTherm Mineral L Adhesive fixing of mineral fibre lamella strips. • Suited for Sto synthetic render finishes and StoDeco Profiles. Mineralic renders and Sto Brick Slips can also be used if required. • Can...

1. Substrate 2. Adhesive mortar 3. Mineral fibre board 4. Fixing dowel 5. Mineralic reinforcing coat 6. Glass fibre reinforcing mesh 7. Decorative render finish 1 2 3 4 5 6 7 External wall insulation system guide | 13

StoTherm Vario Insulation essentials. The cost-effective, expanded polystyrene insulation system with cement-based reinforcement and a selection of finishes. Suitable for a diverse range of substrates, including brick and blockwork, concrete, cement and panels. StoTherm Vario is available in two fixing methods: StoTherm Vario K adhesive fixing with dowels. StoTherm Vario M mechanical rail fixing to overcome surface irregularities. Design • Curves can be easily accomodated. • Ideally suited for Sto mineralic render finishes and StoDeco Profiles. Synthetic renders and Sto Brick Slips can also be...

1. Substrate 2. Adhesive mortar 3. Expanded polystyrene insulation board 4. Reinforcing coat 5. Glass fibre reinforcing mesh 6. Intermediate priming coat 7. Decorative render finish 12 3 4 5 6 7 External wall insulation system guide | 15