EXTERNAL THERMAL INSULATION COMPOSITE SYSTEMS WITH RENDERING

EXTERNAL THERMAL INSULATION COMPOSITE SYSTEMS WITH RENDERING 2015-09-11

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ETAG 004
Edition March 2000
GUIDELINE FOR EUROPEAN TECHNICAL APPROVAL
of
EXTERNAL THERMAL INSULATION COMPOSITE SYSTEMS WITH RENDERING


TABLE OF CONTENTS
Section one: INTRODUCTION
Pages
1 PRELIMINARIES 11
1.1 LEGAL BASIS 11
1.2 STATUS OF ETA-GUIDELINES 11
2 SCOPE 13
2.1 SCOPE 13
2.2 USE CATEGORIES, PRODUCTS FAMILIES, KITS AND SYSTEMS 13
2.3 ASSUMPTIONS 14
3 TERMINOLOGY 15
3.1 COMMON TERMINOLOGY AND ABBREVIATIONS 15
3.2 SPECIFIC TERMINOLOGY 15
3.2.1 Substrates 15
3.2.2 System components 15
3.2.2.1 Adhesive 15
3.2.2.2 Insulation product 15
3.2.2.3 Rendering system 15
3.2.2.4 Mechanical fixing devices 16
3.2.2.5 Ancillary materials 16
3.2.3 Systems 16
3.2.3.1 Bonded systems 16
3.2.3.2 Mechanically fixed systems 16
Section two: GUIDANCE FOR THE ASSESSMENT OF THE FITNESS FOR USE
4 REQUIREMENTS 19
4.0 General 19
4.1 ER1: Mechanical resistance and stability 21
4.2 ER2: Safety in case of fire 21
4.3 ER3: Hygiene, health and the environment 21
4.3.1 Indoor environment, dampness 21
4.3.2 Outdoor environment 21
4.4 ER4: Safety in use 22
4.5 ER5: Protection against noise 22
4.6 ER6: Energy economy and heat retention 22
4.7 Aspects of durability and serviceability 23
5 METHODS OF VERIFICATION 24
5.0 General 24
5.1 Test on Systems 26
5.1.1 Mechanical resistance and stability 26
5.1.2 Safety in case of fire 26
5.1.2.1 Reaction to fire 26
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5.1.3 Hygiene, health and the environment 26
5.1.3.1 Water absorption (capillarity test) 26
5.1.3.2 Watertightness 28
5.1.3.2.1 Hygrothermal behaviour 28
5.1.3.2.2 Freeze-thaw behaviour 30
5.1.3.3 Impact resistance 31
5.1.3.3.1 Resistance to hard body impact 31
5.1.3.3.2 Resistance to perforation (Perfotest) 32
5.1.3.4 Water vapour permeability (resistance to water vapour diffusion) 32
5.1.3.5 Release of dangerous substance 33
5.1.4 Safety in use 33
5.1.4.1 Bond strength 34
5.1.4.1.1 Bond strength between base coat and insulation product 34
5.1.4.1.2 Bond strength test between adhesive and substrate 35
5.1.4.1.3 Bond strength test between adhesive and insulation product 35
5.1.4.2 Fixing strength (transverse displacement) 36
5.1.4.2.1 Displacement test 36
5.1.4.3 Wind load resistance 38
5.1.4.3.1 Pull-through tests of fixings 40
5.1.4.3.2 Static foam block test 41
5.1.4.3.3 Dynamic wind uplift test 42
5.1.5 Protection against noise 45
5.1.6 Energy economy and heat retention 45
5.1.6.1 Thermal resistance 45
5.1.7 Aspects of durability and serviceability 46
5.1.7.1 Bond strength after ageing 46
5.1.7.1.1 Finishing coat tested on the rig 46
5.1.7.1.2 Finishing coat not tested on the rig 46
Test on components 46
5.2. Insulation product 46
5.2.1 Mechanical resistance and stability 46
5.2.2 Safety in case of fire 46
5.2.3 Hygiene, health and the environment 47
5.2.3.1 Water absorption 47
5.2.3.2 Water vapour permeability 47
5.2.4 Safety in use 47
5.2.4.1 Tensile test 47
5.2.4.1.1 In dry conditions 47
5.2.4.1.2 In wet conditions 47
5.2.4.2 Shear strength and shear modulus of elasticity test 48
5.2.5 Protection against noise 48
5.2.6 Energy economy and heat retention 48
5.2.6.1 Thermal resistance 48
5.3 Anchors 48
5.3.1 Mechanical resistance and stability 48
5.3.2 Safety in case of fire 48
5.3.3 Hygiene, health and the environment 48
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5.3.4 Safety in use 48
5.3.4.1 Pull-out strength of anchor 48
5.3.5 Protection against noise 48
5.3.6 Energy economy and heat retention 49
5.4 Profiles and their fixings 49
5.4.1 Mechanical resistance and stability 49
5.4.2 Safety in case of fire 49
5.4.3 Hygiene, health and the environment 49
5.4.4 Safety in use 49
5.4.4.1 Pull-through resistance of fixings from profiles 49
5.4.5 Protection against noise 50
5.4.6 Energy economy and heat retention 50
5.5 Render 50
5.5.1 Mechanical resistance and stability 50
5.5.2 Safety in case of fire 50
5.5.3 Hygiene, health and the environment 50
5.5.4 Safety in use 50
5.5.4.1 Render strip tensile test 50
5.5.5 Protection against noise 51
5.5.6 Energy economy and heat retention 51
5.6 Reinforcement 51
5.6.1 Mechanical resistance and stability 51
5.6.2 Safety in case of fire 52
5.6.3 Hygiene, health and the environment 52
5.6.4 Safety in use 52
5.6.5 Protection against noise 52
5.6.6 Energy economy and heat retention 52
5.6.7 Aspects of durability and serviceability 52
5.6.7.1 Glass fibre mesh – Tearing strength and elongation 52
of the reinforcing fabric
5.6.7.1.1 Testing in the as-delivered state 53
5.6.7.1.2 Testing after ageing 53
5.6.7.2 Metal lath or mesh 53
5.6.7.3 Other reinforcements 53
6 ASSESSING AND JUDGING THE FITNESS FOR USE 54
6.0 General 54
6.1 Systems 56
6.1.1 Mechanical resistance and stability 56
6.1.2 Safety in case of fire 56
6.1.2.1 Reaction to fire 56
6.1.3 Hygiene, health and the environment 56
6.1.3.1 Water absorption (capillarity test) 56
6.1.3.2 Watertightness 56
6.1.3.2.1 Hygrothermal performance 56
6.1.3.2.2 Freeze-thaw performance 57
6.1.3.3 Impact resistance 57
6.1.3.4 Water vapour permeability 58
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6.1.3.5 Outdoor environment 58
6.1.4 Safety in use 59
6.1.4.1 Bond strength 59
6.1.4.1.1 Bond strength between base coat 59
and insulation product
6.1.4.1.2 Minimun requirement for bond strength 59
between adhesive and substrate
6.1.4.1.3 Minimum requirements for bond strength 59
between adhesive and insulation product
6.1.4.2 Fixing strength (transverse displacement) 59
6.1.4.2.1 Displacement test 59
6.1.4.3 Resistance to wind loading 60
6.1.4.3.1 Pull-through of fixings 60
6.1.4.3.2 Static foam block test 60
6.1.4.3.3 Dynamic wind uplift test 60
6.1.5 Protection against noise 60
6.1.6 Energy economy and heat retention 60
6.1.6.1 Thermal resistance 60
6.1.7 Aspects of durability and serviceability 61
6.1.7.1 Bond strength after ageing 61
6.2 Insulation product 61
6.2.1 Mechanical resistance and stability 61
6.2.2 Safety in case of fire 61
6.2.3 Hygiene, health and the environment 61
6.2.3.1 Water absorption 61
6.2.3.2 Water vapour permeability 61
6.2.4 Safety in use 61
6.2.4.1 Tensile strength 61
6.2.4.2 Shear strength and shear modulus of elasticity 61
6.2.5 Protection against noise 62
6.2.6 Energy economy and heat retention 62
6.2.6.1 Thermal resistance 62
6.3 Anchors 62
6.3.1 Mechanical resistance and stability 62
6.3.2 Safety in case of fire 62
6.3.3 Hygiene, health and the environment 62
6.3.4 Safety in use 62
6.3.4.1 Pull-out strength of anchor 62
6.3.5 Protection against noise 62
6.3.6 Energy economy and heat retention 63
6.4 Profiles and their fixings 63
6.4.1 Mechanical resistance and stability 63
6.4.2 Safety in case of fire 63
6.4.3 Hygiene, health and the environment 63
6.4.4 Safety in use 63
6.4.4.1 Pull through resistance of fixings from profiles 63
6.4.5 Protection against noise 63
6.4.6 Energy economy and heat retention 63
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6.5 Render 63
6.5.1 Mechanical resistance and stability 63
6.5.2 Safety in case of fire 63
6.5.3 Hygiene, health and the environment 63
6.5.4 Safety in use 63
6.5.4.1 Render strip tensile test 63
6.5.5 Protection against noise 64
6.5.6 Energy economy and heat retention 64
6.6 Reinforcement 64
6.6.1 Mechanical resistance and stability 64
6.6.2 Safety in case of fire 64
6.6.3 Hygiene, health and the environment 64
6.6.4 Safety in use 64
6.6.5 Protection against noise 64
6.6.6 Energy economy and heat retention 64
6.6.7 Aspect of durability and serviceability 64
6.6.7.1 Glass fibre mesh 64
6.6.7.2 Metal lath or mesh 64
6.6.7.3 Other reinforcements 64
7 ASSUMPTIONS AND RECOMMENDATIONS UNDER WHICH 65
THE FITNESS FOR USE OF THE PRODUCT IS ASSESSED
7.0 General 65
7.1 Design of the works 65
7.2 Execution of the works 65
7.2.1 Preparation of the substrate 65
7.2.1.1 Substrates suitable for bonded ETICS 65
7.2.1.2 Substrates suitable for mechanically fixed ETICS 66
7.2.2 Execution of the system 66
7.3 Maintenance and repair of the works 66
Section three: ATTESTATION OF CONFORMITY
8 ATTESTATION AND EVALUATION OF CONFORMITY 67
8.1 EC Decisions 67
8.2 Responsibilities 67
8.2.1 Tasks of the manufacturer 67
8.2.1.1 Factory production control 67
8.2.1.2 Testing of samples taken at the factory 68
8.2.1.3 Declaration of Conformity 68
8.2.2 Tasks of the manufacturer or the approved body 68
8.2.2.1 Initial Type Testing 68
8.2.3 Tasks of the approved body 68
8.2.3.1 Assessment of the factory production control system - 68
Initial inspection and continuous surveillance
8.2.3.2 Certification of Factory Production Control 69
8.3 Documentation 69
8.4 CE Marking and information 71
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Section four: ETA CONTENT
9 THE ETA CONTENT 72
9.1 The ETA content 72
ANNEXES
Annex A – Common terminology and abbreviation 74
A.1 Works and products 74
A.1.1 Construction works 74
A 1.2 Construction products 74
A 1.3 Incorporation 74
A 1.4 Intended use 74
A 1.5 Execution 74
A 1.6 System 74
A.2 Performances 75
A.2.1 Fitness for intended use 75
A.2.2 Serviceability 75
A.2.3 Essential requirements 75
A.2.4 Performance 75
A.2.5 Actions 75
A.2.6 Classes or levels 75
A.3 ETAG-Format 76
A.3.1 Requirements 76
A.3.2 Methods of verification 76
A.3.3 Specifications 76
A.3.4 EOTA Technical reports 76
A.4 Working life 76
A.4.1 Working life (of works or parts of the works) 76
A.4.2 Working life (of products) 76
A.4.3 Economically reasonable working life 77
A.4.4 Maintenance 77
A.4.5 Normal maintenance 77
A.4.6 Durability 77
A.5 Conformity 77
A.5.1 Attestation of conformity 77
A.5.2 Identification 77
A.6 Abbreviations 77
A.6.1 Abbreviations concerning the Construction products directive 77
A.6.2 Abbreviations concerning approval 78
A.6.3 General abbreviations 78
Annex B – Synopsis 79
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Annex C – Methods related to the identification of the system components 80
C.1 Pastes and liquids 80
C.1.1 Density 80
C 1.2 Dry extract 80
C.1.2.1 Lime and polymer based products 80
C.1.2.2 Silicate based products 80
C.1.3 Ash content 80
C.1.4 Particle size grading 81
C.2 Powders 81
C.2.1 Ash content 81
C.2.2 Particule size grading 81
C.3 Fresh mortar 81
C.3.0 Preparation of mortar 81
C.3.0.1 Dry mortar 81
C.3.0.2 Paste requiring addition of cement and powder requiring 82
addition of extra binder
C.3.0.3 Ready to use paste 82
C.3.1 Water retention capability 82
C.3.2 Density of fresh mortar 83
C.4 Hardened base coat 83
C.4.1 Products with a thickness greater than 5 mm 83
C.4.1.0 Preparation and storing of test samples 83
C.4.1.1 Dynamic modulus of elasticity 84
C.4.1.2 Shrinkage test 85
C.4.2 Products with a thickness up to 5 mm: static modulus of 85
elasticity, tensile strength and elongation at break
C.5 Insulation product 86
C.5.1 Density measurement 86
C.5.2 Dimensional characteristics and appearance 86
C.5.2.1 Length and width 86
C.5.2.2 Thickness 86
C.5.2.3 Squareness 86
C.5.2.4 Flatness 86
C.5.2.5 Surface condition 86
C.5.3 Compression test 86
C.5.4 Dimensional stability tests 86
C.6 Reinforcement 86
C.6.1 Mass per unit area 86
C.6.2 Ash content 87
C.6.3 Mesh size and number of filaments 87
C.6.4 Elongation 87
C.7 Mechanical fixing devices 87
C.7.1 Dimensions 87
C.7.2 Load characteristics if necessary 87

This Guideline has been drawn up by the EOTA Working Group 04.04/11 - External Thermal Insulation
Composite Systems.
The WG consisted of members from eight EU-countries (Denmark, Finland, France (Convenor),
Germany, Netherlands, Italy, Portugal and the United Kingdom) and four European industrial
organisations (EEWISA (European External Wall Insulation Systems Association), EMO (European
Mortars Organisation), EUMEPS (European Manufacturers of Expanded Polystyrene) and EURIMA
(European Insulation Manufacturers Association)).
The Guideline sets out the performance requirements for External Thermal Insulation Composite
Systems for the use as external insulation of building walls, the verification methods used to examine
the various aspects of performance, the assessment criteria used to judge the performance for the
intended use and the presumed conditions for the design and execution.
The UEAtc Directives for the Assessment of External Insulation Systems for Walls (Expanded
Polystyrene Insulation Faced with a Thin Rendering), June 1988 and UEAtc Technical Guide for the
Assessment of External Wall Insulation Systems Faced with Mineral Render, April 1992 have formed
part of the basis for the Guideline.
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