Foreword

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This document was prepared by Technical Committee ISO/TC 163, Thermal performance and energy use in the built environment, Subcommittee SC 3, Thermal insulation products, components and systems.

A list of all parts in the ISO 17738 series can be found on the ISO website.

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Introduction

EIFS are wall cladding assemblies designed to provide integrated air, thermal, vapour, and moisture control functions in addition to providing a range of aesthetic finishes.

As integrated assemblies, EIFS are installed as tested by the system manufacturer, detailed by the building design professional, and installed according to manufacturer and standard requirements. Also, if specified, they can be subject to a standardized process for conducting verification of these project phases.

Verification personnel verify and document that the EIFS installation comprises materials and products in conformance with ISO 17738-1, is being installed as per ISO 17738-2, with details that conform with ISO 17738-3, and all are in accordance with manufacturer’s printed installation instructions.

1 Scope

This document provides the requirements for site verification that an installed system of EIFS, (exterior insulation and finish system), conforms with the requirements of ISO 17738-1, is installed in conformance with ISO 17738-2 and designed in conformance with ISO 17738-3.

The document further covers EIFS installed on prefabricated panels being produced offsite and then installed on site.

This document does not purport to address all the safety concerns, if any, associated with its use.

2 Normative references

3 Terms and definitions

4 Scope of site verification

The EIFS verification personnel shall record what is visible on site at the time of the site verification and the results of any site testing conducted during the site visit. The EIFS verification personnel shall document by recording and photographing any discrepancies between the project documentation and what is visible on site.

EIFS verification personnel shall be representatives of the building owner, a qualified third-party person or entity, or a qualified third-party evaluation agency, all independent of the EIFS manufacturer or installer.

5 Levels of site verifications

6 Project documentation

6.1 General

6.2 Project specification

6.3 Material

6.4 Installation

7 Pre-Construction Meeting

8 Coordination with trades

9 Site verification process

9.1 General

9.2 EIFS, materials storage and handling

9.3 Substrate

9.4 Mixing

9.5 Air and water resistive barrier

9.6 Transition membrane

9.7 Thermal insulation boards

9.8 Rasping and surface preparation

9.9 Base coat and glass fibre reinforcing mesh

9.10 Terminations and aesthetic reveals

9.11 Aesthetic reveals

9.12 Pre-wrapped terminations

9.13 Finish material

10 Test and inspection methods

11 Nonconformance