Performance of buildings - Detection of heat, air and moisture irregularities in buildings by infrared methods - Part 3: Qualifications of equipment operators, data analysts and report writers (ISO 6781-3:2015)

This part of ISO 6781 specifies the qualifications and an assessment process for personnel who (i) perform thermographic investigations on buildings (ii) interpret the data emanating from thermographic investigations (iii) report the results of thermographic investigations in three classifications. This standard provides the basis for a declaration of conformity of the knowledge, skills and abilities of individuals to perform thermographic measurements and analysis for residential, commercial and institutional buildings. This part of the standard (Part 3) is independent and stand-alone in nature in refererence to other parts of the standard. Specialized equipment or other specific situations is not covered by this standard.

Verhalten von Gebäuden - Feststellung von wärme-, luft- und feuchtebezogenen Unregelmäßigkeiten in Gebäuden durch Infrarotverfahren - Teil 3: Qualifikation der Ausrüstungsbetreiber, Datenanalytiker und Berichtsautoren (ISO 6781-3:2015)

Dieser Teil der ISO 6781 legt die Qualifikationen und einen Beurteilungsprozess für Personal fest, das folgende Aufgaben hat: (i) Durchführung thermographischer Untersuchungen an Gebäuden, (ii) Auswertung der Daten von thermographischen Untersuchungen und (iii) Angabe der Ergebnisse von thermographischen Untersuchungen in Berichten.
Diese Norm bietet die Grundlage für eine Konformitätserklärung (drei Klassen) der Kenntnisse, Fähigkeiten und Fertigkeiten der Personen, die thermographische Messungen und Analysen durchführen sowie die Ergebnisse für Wohngebäude, Geschäftsgebäude und öffentliche Gebäuden in Berichten angeben.
Spezielle Ausrüstung bzw. weitere spezifische Situationen werden von dieser Norm nicht abgedeckt.

Performance des bâtiments - Détection d'irrégularités de chaleur, air et humidité dans les bâtiments par des méthodes infrarouges - Partie 3: Qualification des opérateurs de l'équipement, des analystes de données et des rédacteurs de rapports (ISO 6781-3:2015)

ISO 6781-3:2015 spécifie les qualifications et compétences requises pour le personnel qui (i) réalise des études thermographiques de bâtiments, (ii) interprète les données issues des études thermographiques et (iii) établit des rapports sur la base des résultats des études thermographiques.
ISO 6781-3:2015 sert de base à une déclaration de conformité, en trois classes, des connaissances, des savoir-faire et des aptitudes des individus chargés de réaliser des mesurages thermographiques, une analyse des résultats et les rapports correspondants pour les petits bâtiments, les bâtiments résidentiels, commerciaux et institutionnels.
Un équipement spécial ou d'autres situations spécifiques ne sont pas couverts par la présente partie de l'ISO 6781.

Lastnosti stavb - Ugotavljanje toplotnih, zrakotesnih in vlažnostnih nepravilnosti v stavbi z infrardečimi metodami - 3. del: Kvalifikacije operaterjev naprav, podatkovnih analitikov in poročevalcev (ISO 6781-3:2015)

Ta del standarda ISO 6781 določa kvalifikacije in postopek ocenjevanja za osebje, ki (i) izvaja termografske preglede stavb, (ii) interpretira podatke takšnih termografskih pregledov in (iii) poroča o rezultatih termografskih pregledov v treh klasifikacijah. Ta standard zagotavlja podlago za izjavo o skladnosti znanja, spretnosti in zmožnosti posameznikov za izvajanje termografskih meritev in analize za stanovanjske, poslovne in institucionalne stavbe. Ta del standarda (3. del) je neodvisen in samostojen v povezavi z drugimi deli standarda. Posebna oprema ali drugi posebni primeri v tem standardu niso zajeti.

General Information

Status
Published
Public Enquiry End Date
30-May-2013
Publication Date
11-Jan-2016
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
17-Dec-2015
Due Date
21-Feb-2016
Completion Date
12-Jan-2016

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Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 6781-3:2016
01-februar-2016
/DVWQRVWLVWDYE8JRWDYOMDQMHWRSORWQLK]UDNRWHVQLKLQYODåQRVWQLKQHSUDYLOQRVWLY
VWDYEL]LQIUDUGHþLPLPHWRGDPLGHO.YDOLILNDFLMHRSHUDWHUMHYQDSUDY
SRGDWNRYQLKDQDOLWLNRYLQSRURþHYDOFHY ,62
Performance of buildings - Detection of heat, air and moisture irregularities in buildings
by infrared methods - Part 3: Qualifications of equipment operators, data analysts and
report writers (ISO 6781-3:2015)
Verhalten von Gebäuden - Feststellung von wärme-, luft- und feuchtebezogenen
Unregelmäßigkeiten in Gebäuden durch Infrarotverfahren - Teil 3: Qualifikation der
Ausrüstungsbetreiber, Datenanalytiker und Berichtsautoren (ISO 6781-3:2015)
Performance des bâtiments - Détection d'irrégularités de chaleur, air et humidité dans les
bâtiments par des méthodes infrarouges - Partie 3: Qualification des opérateurs de
l'équipement, des analystes de données et des rédacteurs de rapports (ISO 6781-
3:2015)
Ta slovenski standard je istoveten z: EN ISO 6781-3:2015
ICS:
91.120.10 Toplotna izolacija stavb Thermal insulation
SIST EN ISO 6781-3:2016 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 6781-3:2016

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SIST EN ISO 6781-3:2016


EN ISO 6781-3
EUROPEAN STANDARD

NORME EUROPÉENNE

December 2015
EUROPÄISCHE NORM
ICS 91.120.10
English Version

Performance of buildings - Detection of heat, air and
moisture irregularities in buildings by infrared methods -
Part 3: Qualifications of equipment operators, data
analysts and report writers (ISO 6781-3:2015)
Performance des bâtiments - Détection d'irrégularités Verhalten von Gebäuden - Feststellung von wärme-,
de chaleur, air et humidité dans les bâtiments par des luft- und feuchtebezogenen Unregelmäßigkeiten in
méthodes infrarouges - Partie 3: Qualification des Gebäuden durch Infrarotverfahren - Teil 3:
opérateurs de l'équipement, des analystes de données Qualifikation der Ausrüstungsbetreiber,
et des rédacteurs de rapports (ISO 6781-3:2015) Datenanalytiker und Berichtsautoren (ISO 6781-
3:2015)
This European Standard was approved by CEN on 10 October 2015.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 6781-3:2015 E
worldwide for CEN national Members.

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SIST EN ISO 6781-3:2016
EN ISO 6781-3:2015 (E)
Contents Page
European foreword . 3
2

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SIST EN ISO 6781-3:2016
EN ISO 6781-3:2015 (E)
European foreword
This document (EN ISO 6781-3:2015) has been prepared by Technical Committee ISO/TC 163 "Thermal
performance and energy use in the built environment" in collaboration with Technical Committee
CEN/TC 89 “Thermal performance of buildings and building components” the secretariat of which is
held by SIS.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by June 2016, and conflicting national standards shall be
withdrawn at the latest by June 2016.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent
rights.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 6781-3:2015 has been approved by CEN as EN ISO 6781-3:2015 without any
modification.
3

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SIST EN ISO 6781-3:2016

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SIST EN ISO 6781-3:2016
INTERNATIONAL ISO
STANDARD 6781-3
First edition
2015-12-01
Performance of buildings — Detection
of heat, air and moisture irregularities
in buildings by infrared methods —
Part 3:
Qualifications of equipment operators,
data analysts and report writers
Performance des bâtiments — Détection d’irrégularités de chaleur,
air et humidité dans les bâtiments par des méthodes infrarouges —
Partie 3: Qualification des opérateurs de l’équipement, des analystes
de données et des rédacteurs de rapports
Reference number
ISO 6781-3:2015(E)
©
ISO 2015

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SIST EN ISO 6781-3:2016
ISO 6781-3:2015(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2015, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2015 – All rights reserved

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SIST EN ISO 6781-3:2016
ISO 6781-3:2015(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Classification of personnel . 2
4.1 General . 2
4.2 Class I . 2
4.3 Class II. 2
4.4 Class III . 3
5 Eligibility. 3
5.1 General . 3
5.2 Qualifications — Education, training and experience . 4
5.2.1 Education requirements — General . 4
5.2.2 Qualification requirements — Training . 4
5.2.3 Qualifications — Practical experience . 5
6 Test instruments (examinations) . 6
6.1 Administration of test instruments . 6
6.2 Content . 6
6.2.1 Knowledge . 6
6.2.2 Skills . 6
6.2.3 Abilities . 7
Annex A (normative) Training course requirements for thermography personnel.8
Annex B (normative) Training course details .14
© ISO 2015 – All rights reserved iii

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SIST EN ISO 6781-3:2016
ISO 6781-3:2015(E)

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical
Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 163 Thermal performance and energy use in the
built environment, Subcommittee SC 1, Test and measurement methods.
ISO 6781 consists of the following parts under the general title Performance of buildings — Detection of
heat, air and moisture irregularities in buildings by infrared methods
— Part 3: Qualifications of equipment operators, data analysts and report writers
The following parts are under development:
— Part 1: General procedures
— Part 2: Equipment requirements
— Part 4: Conducting thermographic inspections and reporting of results for residential and small buildings
— Part 5: Conducting thermographic inspections and reporting of results for commercial buildings
— Part 6: Conducting thermographic inspections and reporting of results for institutional and special
use buildings
A.1, A.2 and Annex B form normative parts of this part of ISO 6781.
iv © ISO 2015 – All rights reserved

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SIST EN ISO 6781-3:2016
ISO 6781-3:2015(E)

Introduction
Reducing energy use in buildings is paramount to improving our environment. Infrared building
thermography provides a tool to quantitatively and qualitatively identify the presence of energy-
wasting defects and anomalies within building structures. These defects and anomalies can include,
for example, thermal insulation defects, moisture content, and / or unwanted air movement or leakage
within the building envelope.
Building thermography is carried out by means of an infrared radiation sensing system, which produces
an image based on the apparent radiance temperature of the target surface area. The thermal radiation
(infrared radiation density) from the target area is converted by the infrared radiation sensing system
to produce a thermal image (thermogram). This image (thermogram) represents the relative intensity
of thermal radiation from different parts of the surface. The radiation intensity indicated by the image
is directly related to (i) the surface temperature and distribution, (ii) the characteristics of the surface,
(iii) the ambient conditions, and (iv) the sensor itself. Also included in the thermographic process is
valid interpretation of the thermal images.
As a result, surface temperature distribution can be a key parameter for monitoring the performance of
building components, building envelopes and the diagnostics of problems. In use, via analysis of surface
temperature distributions, irregularities in the heat and moisture properties of building envelopes and
components, and air movement within the building envelope, can be indicated. These irregularities can
be due to, for example, thermal insulation defects, moisture content, air leakage within components, or
incorrect installation of components which comprise the construction of the building.
To realize its full utility as an initial qualitative screening technique, or in-depth diagnostic technique,
thermography is often supported and / or validated by other methods. Such methods include, but are
not limited to, infrared photosensitive tracer gas methods, fan pressurization of the building envelope,
heat-flow meters, smoke diffusion, anemometry, etc.
The effectiveness of the investigations depends on the competence of individuals who perform
the measurements and analyse the data. A person or entity wishing to use or implement infrared
thermographic services for buildings can refer to this part of ISO 6781 to understand and specify (i) the
competence required of operators of the thermographic equipment, and (ii) the qualifications required
of interpreters of data gathered from the thermographic surveys.
This part of ISO 6781 sets out the requirements and levels of competence that equipment operators,
data analysts and report writers shall possess in order to undertake thermographic investigations and
the analysis and reporting of thermographic results stemming from investigations.
For validity of requirements to this part of ISO 6781, assessment of competence will be undertaken by
bodies qualified to train and assess the competence of personnel whose duties require the appropriate
theoretical and practical knowledge applicable to thermography of buildings.
© ISO 2015 – All rights reserved v

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SIST EN ISO 6781-3:2016

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SIST EN ISO 6781-3:2016
INTERNATIONAL STANDARD ISO 6781-3:2015(E)
Performance of buildings — Detection of heat, air and
moisture irregularities in buildings by infrared methods —
Part 3:
Qualifications of equipment operators, data analysts and
report writers
1 Scope
This part of ISO 6781 specifies the qualifications and competence requirements for personnel
who (i) perform thermographic investigations on buildings, (ii) interpret the data emanating from
thermographic investigations, and (iii) report the results of thermographic investigations.
This part of ISO 6781 provides the basis for a statement of conformity, in three classes, of the knowledge,
skills and abilities of individuals to perform thermographic measurements, analysis and reporting of
results for small buildings, residential buildings, and commercial and institutional buildings.
This part of ISO 6781 is not applicable to specialized equipment or other specific situations.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 9288:1989, Thermal insulation — Heat transfer by radiation — Physical quantities and definitions
ISO/IEC 17024:2012, Conformity assessment — General requirements for bodies operating certification of
persons
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 9288:1989 and the
following apply.
3.1
trainee
person who is being trained to become qualified
3.2
significant interruption
absence or change of activity which prevents the assessed individual from practising the duties
corresponding to the defined scope of their classification for (a) a continuous period in excess of 365
days or (b) two or more periods for a total time exceeding two-fifths of the total period of validity of the
certificate or declaration of conformity
3.3
test instrument
any means used (whether oral, written or demonstrative) to test that required knowledge, skills and
abilities have been effectively assimilated, and can be effectively deployed in practice, by an individual
© ISO 2015 – All rights reserved 1

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SIST EN ISO 6781-3:2016
ISO 6781-3:2015(E)

3.4
qualification body
body independent of the employer, able to prepare and administer qualification examinations
4 Classification of personnel
4.1 General
Individuals assessed as conforming to the training and practical experience requirements of this
part of ISO 6781 shall be classified into one of three classes depending upon their qualifications. They
shall have demonstrated the necessary knowledge, skills, abilities and experience in thermography
of buildings for their Class as detailed in Annexes A and B. Training durations shall be at least the
minimum duration summarized in Table 1. Required practical experience will be of duration at least
the minimum as summarized in Table 2.
Personnel classified as Class II need to have all the knowledge, skills and abilities expected of personnel
classified as Class I, while personnel classified as Class III need to have all the knowledge, skills and
abilities expected of personnel classified as Class II.
4.2 Class I
For the requirements of this part of ISO 6781 to be met, training specified in 5.2 shall be delivered
by (i) a qualifying body, (ii) training will be delivered by persons fully qualified as Class III for
thermography of buildings, and (iii) assessments of competence shall conform to the requirements
of ISO/IEC 17024:2012 in assessing the knowledge, skills and abilities of personnel who require the
theoretical and practical knowledge applicable to thermography of buildings.
Individuals classified as Class I are qualified to perform infrared thermography of buildings according
to established and recognized procedures. Personnel classified as Class I shall have the knowledge,
skills and abilities to be able to:
a) apply a specified thermographic measurement technique;
b) have knowledge of, set up and operate the thermal imaging equipment for safe thermographic
data collection;
c) prevent, minimize or control poor data and error sources;
d) perform basic fault detection, severity assessment, and diagnosis in accordance with established
instructions;
e) perform basic image post processing (measurement tools, emissivity adjustments, span and scale
adjustments, etc);
f) maintain a database of results and trends;
g) verify the calibration of thermographic measurement systems;
h) in accordance with established criteria, evaluate and report test results and highlight areas of
concern; and
i) be able to recognize and prevent or control factors that result in the acquisition of poor-quality
data (sources of data error).
4.3 Class II
Individuals classified as Class II are qualified to perform infrared thermography of buildings according
to established and recognized procedures. Preparation of reports involving structural components and
2 © ISO 2015 – All rights reserved

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SIST EN ISO 6781-3:2016
ISO 6781-3:2015(E)

elements of buildings shall be undertaken by registered professionals in accordance with local statutes
and regulations. Personnel classified as Class II shall have the knowledge, skills and abilities to be able to:
a) select the appropriate infrared thermography technique and understand its limitations;
b) apply thermography theory and techniques, including measurement and interpretation of
survey results;
c) specify the appropriate hardware and software;
d) perform advanced diagnoses of irregularities found during thermographic investigations;
e) in accordance with industry-accepted practices, standards and regulations and statutes,
recommend appropriate corrective actions;
f) perform advanced image post processing (image, trending, montage, subtraction, super-imposition,
statistical analysis, etc.);
g) use generally recognized advanced techniques for infrared thermography of buildings and
diagnosis of irregularities in accordance with established procedures;
h) prepare reports on as-found building condition, faults, irregularities and diagnoses, and
recommend corrective actions for repair and remediation;
i) be aware of the use of alternative or supplementary technologies that support or enhance the
effectiveness of thermographic investigations of buildings;
j) provide guidance to and supervise Class I personnel.
4.4 Class III
Individuals classified as Class III are qualified to perform infrared thermography of buildings according
to established and recognized procedures. Personnel classified as Class III shall have the knowledge,
skills and abilities to be able to:
a) develop and establish thermographic programmes, procedures, and instructions including
determination of regimens for periodic / continuous monitoring, frequency of testing, the use of
advanced techniques;
b) determine severity assessment and acceptance criteria for new, existing and renovated buildings;
c) interpret and evaluate codes, standards, specifications and procedures;
d) designate the particular test methods, procedures, equipment and instructions to be used;
e) perform prognostics for detected heat, air movement and moisture irregularities;
f) recommend appropriate types of corrective actions based on sound building technology practices;
g) provide guidance to and supervise Class I and II personnel; and
h) be able to recommend the use of alternative or supplementary technologies for detection of heat,
air and moisture irregularities in buildings by infrared methods.
5 Eligibility
5.1 General
Candidates shall have a combination of education, training and experience to ensure that they
understand the principles and procedures applicable to thermographic measurement, analysis and
report writing.
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SIST EN ISO 6781-3:2016
ISO 6781-3:2015(E)

Candidates shall have colour perception assessed by the Ishihara 24 plate test. A record of test results
shall be retained and presented to the assessment body upon request. In the event that a colour
perception deficiency, indicated by misreading four or more of the 24 plates, is detected during the
Ishihara test, a further ‘task specific’ test is to be carried out by the employer to ascertain whether the
detected colour perception deficiency affects the individual’s ability to satisfactorily perform analysis
of thermographic data using colour palettes. Failure to pass this test shall require the candidate to use
a monochrome palette. This ‘task specific’ test, and any requirement to use a monochrome palette, is to
be documented and the record of the test made available to the assessment body upon request.
5.2 Qualifications — Education, training and experience
5.2.1 Education requirements — General
Candidates seeking classification do not need to provide evidence of formal education to establish
eligibility. Candidates for Class I and II shall have at least a secondary school (i.e. high school) or
equivalent graduate qualification. Class II and III shall be able to manipulate simple algebraic equations,
use a scientific calculator, and be familiar with the operation of personal computers.
It is recommended for candidates seeking classification to Class III that two or more years of mechanical
technology, building technology or mechanical engineering at a college, university, or training at a
technical school, be successfully completed.
5.2.2 Qualification requirements — Training
Candidates shall be qualified by confirming the knowledge, skills and abilities outlined in the essential
learning specified in 4.2, 4.3 and 4.4. The prerequisites required to attain each level of classification are
listed in 5.1 and 5.2. The competence requirements for each of an equipment operator, a data analyst,
and a report writer shall be the same.
5.2.2.1 Structure of training materials
Training shall be modularised into two or more subject areas covering general scientific principles of
thermography, application-specific knowledge of building thermography, and building technology, in
order to allow for mutual recognition between building-thermography training and assessment bodies.
5.2.2.2 Candidate training — Building thermography
To be eligible to apply for a Class based on this part of ISO 6781, candidates shall submit evidence of
training in thermography subjects in accordance with the requirements and minimum training time
of Annex A. Training shall be in the form of lectures, demonstrations, practical exercises or formal
training courses.
5.2.2.3 Candidate training — Building technology
Candidates shall attend and successfully complete building technology training, or equivalent on-the-job
training, as assessed by the qualification body (3.4), of at least a similar duration as specified in Annex A.
Building technology training shall be in addition to the general education requirements in 5.2.1.
Class I training shall consist of the design, construction, installation and maintenance of building
materials and systems as it relates to the heat, air and moisture flow in buildings.
Class II training shall consist of the building science principles related to the degradation and failure of
materials and systems as it relates to the heat, air and mois
...

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