ISO 17738-1:2021

Thermal insulation products — Exterior insulation finish systems — Part 1: Materials

This document outlines requirements for exterior insulation and finish systems (EIFS), used in combination with a drained air space as an exterior wall cladding system. The document includes requirements for a water resistive barrier assembly that are used as part of EIFS. This document outlines testing procedures with pass/fail criteria for an exterior insulation and finish system. The procedures cover the liquid applied water resistive barrier, which forms a second line of defense against water penetration, individual material components and the complete system to demonstrate durability. The use of mechanical fasteners is outside the scope of this document. In EIFS, the thermal insulation boards support the base coat with integral glass fibre reinforcing mesh. Systems where the reinforcement is the supporting element of the rendering, e.g. conventional stucco, are not covered by this document.

Produits isolants thermiques — Systèmes de finition d'isolation externe — Partie 1: Materiaux

General Information

• Status: Published
• Publication Date: 19-Dec-2021
• ICS: 91.100.60 - Thermal and sound insulating materials
• Technical Committee: ISO/TC 163/SC 3 - Thermal insulation products, components and systems
• Drafting Committee: ISO/TC 163/SC 3/WG 9 - Exterior insulation and finish systems
• Current Stage: 6060 - International Standard published
• Start Date: 20-Dec-2021
• Due Date: 28-Sep-2021
• Completion Date: 20-Dec-2021

Relations

• Revises: ISO 17738-1:2017 - Thermal insulation products — Exterior insulation and finish systems — Part 1: Materials and systems
• Effective Date: 23-Apr-2020

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 17738-1
Second edition
2021-12
Thermal insulation products —
Exterior insulation finish systems —
Part 1:
Materials
Produits isolants thermiques — Systèmes de finition d'isolation
externe —
Partie 1: Materiaux
Reference number
ISO 17738-1:2021(E)
© ISO 2021

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ISO 17738-1:2021(E)
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ii
  © ISO 2021 – All rights reserved

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ISO 17738-1:2021(E)
Contents Page
Foreword .v
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms definitions and symbols .2
3.1 Terms and definitions . 2
3.2 Symbols . 5
4 Requirements . 5
4.1 EIFS constituent products . 5
4.2 LA-WRB . 5
5 Test methods . 5
5.1 Requirments . 5
5.2 Sampling . 6
5.3 Preparation of sample panels . 6
5.4 EIFS material tests . 7
5.4.1 Ash content . 7
5.4.2 Infrared analysis . 7
5.4.3 Bond strength tests . 8
5.4.4 Water vapour permeance of the lamina .
...