EXTERIOR INSULATION FINISHING SYSTEMS EIFS Alpha System The House of Scandinavian Finishing Materials
INTRODUCTION ALPHA SYSTEM As a leader in the production and distribution of environmentally friendly finishing materials, Terraco pioneers innovative solutions aimed at reducing a building s impact on the environment. Since its founding in 1980, Terraco has become recognised as the manufacturer of choice for discerning customers that need quality, durability and environmentally friendly products. Sustainable building and in particular energy efficiency in buildings has become a key benchmark of successful building design. External wall insulation was developed to promote a comfortable indoor climate while substantially reducing the need for heating and/or cooling. These energy savings not only greatly reduce energy bills and save on greenhouse emissions, but includes a vast number of other benefits. The versatility of Terraco EIFS makes it ideal for new buildings as well as renovation projects. Where your home loses heat in cold climates WHY USE TERRACO EIFS? Proven track record: guaranteed system. Promotes indoor comfort and improved quality of life. Substantially reduces cost of heating and cooling. Proven contribution towards Green Building. Saves non-renewable resources and reduces greenhouse emissions. Eliminates condensation on walls and ceilings. Excellent impact resistance. No need for occupants to vacate the building whilst installing. Terraco EIFS can give you more internal living space. Long term antifungal resistance Smart investment. Enhanced soundproofing is achieved, European Technical Approval depending on the system used. ETA 09/0384 TERRACO ALPHA SYSTEM The Terraco EIFS Alpha System is based on using Expanded Polystyrene Boards (EPS) or Graphite Enhanced EPS Boards as the insulation material. The EPS is fixed to the substrate using a combination of adhesive (Styrofix) and mechanical fasteners. The board is then strengthened with a range of quality profiles, mechanical fasteners and a basecoat (Styrobond) reinforced with a layer of glass fibre mesh. This creates a surface that is then primed and decorated using Terraco s decorative finishing coats. The decorative finishing coat is of particular importance to designers, builders and owners, as it can be used from both an aesthetic and durability perspective. 1. Solid wall 2. Styrofix adhesive 3. Graphite Enhanced Polystyrene Insulation Board (EPS) 4. Lamella wool fire break 5. Mechanical fastener 6. Styrobond DP Basecoat 7. Terraco Glass Fibre Mesh 8. P Primer 9. Terracoat Sil Decorative render
Terraco EIFS consists of the following components, which are explained in greater detail in the following pages, namely: 1. Insulation Board 2. System Profiles 3 Mechanical Fasteners 4 Glass Fibre Mesh 5 Styrofix (Adhesive) 6. Styrobond DP (Basecoat) 7. Primer 8. Decorative Finish 9. Topcoats 1. INSULATION BOARD SYSTEM COMPONENTS Insulation Board EPS Graphite EPS XPS MW Thickness (mm) Thermal Conductivity K-Value [W/(m.K)] Thermal Resistance R-Value [(m 2.K)/W] Thermal Transmittance U-Value [W/(m3.K)] 1.52 0.66 100 3.03 0.33 0.033 1 4.55 0.22 200 6.06 0.17 1.67 0.60 100 3.33 0.30 0.030 1 5.00 0.20 200 6.67 0.15 1.67 0.60 100 3.33 0.30 0.030 1 5.00 0.20 200 6.67 0.15 1.25 0.80 100 2. 0.40 0.040 1 3.75 0.27 200 5.00 0.20 Expanded Polystyrene Insulation Board (EPS) λ=0,033 Graphite Enhanced Expanded Polystyrene Insulation Board (EPS) λ=0,030 Extruded Polystyrene Insulation Board (XPS) λ=0,030 Terraco EIFS Polar System Mineral Wool Insulation Board (MW) λ=0,040 Terraco EIFS Perma System 2. SYSTEM PROFILES PVC Corner Bead with Mesh Window Reveal Bead Drip Nose Bead Groove Bead Movement Bead Starter Base Profile 3. MECHANICAL FASTENERS (ALSO KNOWN AS ANCHORS OR DOWELS) Fastener with Steel Expansion Pin Fastener with Plastic Expansion Pin Fastener for Aerated Lightweight Concrete (ACL) 4. TERRACO EIFS GLASS FIBRE MESH Technical Properties Product : Fibreglass Mesh E Glass Weave : Leno Mesh Spacing : 3. x 4.0 mm Standard Width : 1000 mm ± 10 mm Standard Length : m Finished Product Weight : 161 g/m 2 ± 10 DIN 53854 Tensile Strength : 2000 N/5cm DIN EN ISO 13934-1 Elongation : 3.90 DIN EN ISO 13934-1 Tear Resistance : % (after 28 days conditioning in 5% solution of sodium hydroxide) Alkali Resistance : High
SYSTEM COMPONENTS 5. STYROFIX Styrofix is an adhesive in the Terraco ElF system. It is user friendly and factory mixed, improving on-site quality control. It shows excellent adhesion between various substrates and insulation boards. Styrofix has the following properties: Water resistant Excellent adhesion Good flexural strength Easy to use Spot Application Notched Trowel Application 6. STYROBOND DP Styrobond DP is a basecoat and adhesive in the Terraco ElF system. It shows excellent adhesion between substrate and insulation boards when used as an adhesive. It also provides an excellent basecoat for embedding glass fibre mesh on top of which the Terraco EIFS finishing coat is applied. Styrobond DP has the following properties: Water resistant Excellent adhesion Good flexural strength Good impact resistance Easy to use Adhesive Basecoat Embedding Glass Fibre mesh 7. PRIMERS Terraco recommends the use of an acrylic penetrating primer which is available in 2 options: P Primer Clear P Primer Pigmented 8. TERRACOAT SIL SILCONE BASED Terracoat Sil is a range of ready-mixed acrylic silicone resin based textured coatings. This product range is characterised by its outstanding water repellent properties, and therefore its resistance to dirt pick-up, keeping the building pristine for longer. These high build matt products not only mask imperfections in the substrate, but are extremely weather resistant, particularly in freezing climates, and provide excellent vapour permeability allowing the coating to breathe. Overcoating using silicone based or conventional paint systems, when required, is acceptable. Terracoat Sil products are guaranteed against peeling and fading. Terracoat Sil Granule: Terracoat Sil Granule is a trowel applied texture giving a granular finish with various grain sizes. It can also be spray applied. Terracoat Sil Excel: Terracoat Sil Excel is a trowel applied texture giving an alpine scratch finish. Terracoat Sil Granule Type of Product Terracoat Sil Granule 1mm Terracoat Sil Granule 2mm Terracoat Sil Excel 2mm Consumption (kg/m 2 ) 2.2 3.0 3.3 4.0 2.3 3.2 Application Trowel/Spray Trowel/Spray Trowel Terracoat Sil Excel
INSTALLATION/APPLICATION GUIDE INSTALLATION PROCESS It is It important is that that the the Terraco Exterior Insulation Finishing System is correctly is installed. All All installers of of Terraco EIFS EIFS are are certified after after they they have have been been through the the Terraco Training Centre. The The general process of of the the installation of of External Wall Wall Insulation is outlined is below. Before beginning the the installation Assess the the suitability of of the the substrate. If there If there are are any any discrepancies with with the the initial initial inspection of of the the substrate, do do not not proceed with with the the application until until all all unsatisfactory conditions are are corrected. System Detail Detail Review Ensure that that the the following are are correctly designed and and reviewed prior prior to to commencing installation: 1. 1. Window and and door door reveals. 2. 2. Parapet capping. 3. 3. Bottom of of walls walls (grade or or pavement). 4. 4. Penetrations (gutter down-pipes, fixtures, outlets, signage). 5. 5. Aesthetic features. 6. 6. Expansion joints. joints. 7. 7. Abutments to to dissimilar materials. 8. 8. Roof/wall intersection. 9. 9. Flashing locations. 10. 10. Window sills/over-sills. 11. 11. Roofing. Step Step 1. Installing 1. starter base base profile Step Step 2. Applying 2. adhesive to to board board Slide Slide and and push push the the boards into into place place and and apply apply even even firm firm pressure to to entire entire insulation board board once once it is it in is place. in place. Step Step 3. Application 3. of of Mechanical Fasteners The The amount of of Terraco EIFS EIFS fasteners per per square metre metre will will depend on on a multitude a of of factors including building substrate and and building height. The The fasteners should be be installed only only after after the the styrofix has has dried dried fully fully and and they they should be be flush flush with with the the insulation board. Step Step 4. Application 4. of of reinforcing mesh mesh Cut Cut Terraco reinforcing mesh mesh into into workable lengths and and apply apply an an even even layer layer of of Styrobond DP DP approx. 1.5-2.0 1.5-2.0 mm mm in in thickness to to the the surface of of the the insulation board. Immediately embed the the Terraco reinforcing mesh mesh into into the the fresh fresh Styrobond DP DP and and trowel it from it from the the centre out out to to the the edges. Mesh Mesh must must overlap 10cm. 10cm. Once Once set set apply apply second layer layer of of Styrobond DP. DP. Step Step 5. Priming 5. Examine the the surface to to ensure that that it is it plumb is and and free free from from any any irregularities. Apply Apply primer by by roller. roller. Step Step 6. Decorative 6. Finish Finish Choose the the decorative finish finish of of your your choice. Terraco offers offers a variety a of of high high quality acrylic acrylic and and silicon silicon based based coatings in a in wide a wide range range of of colours. Brick Brick effects can can also also be be achieved through ashlar ashlar jointing or or through the the use use of of brick brick slips. slips. Installing Installing Starter Starter Base Base Profile Profile Styrofix Styrofix Spot Spot Application Styrofix Styrofix Notched Notched Trowel Trowel Application Insulation Insulation Board Board should should never never align align with with window window corner corner Application of Mechanical of Fasteners Fasteners Mesh Mesh application Mesh Mesh application at window at window edges edges
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