Registered Waterproofing Consultant – RWC®

Applicants must meet specific requirements to become Registered Waterproofing Consultants.  These requirements include verifiable levels of work experience and education, high ethical standards, and a satisfactory score on both the RWC and General Consultant Knowledge (GCK) exams.

Applicants who currently hold a Registered Roof Consultant (RRC®) and/or Registered Exterior Wall Consultant (REWC®) designation(s) are exempt from taking the GCK exam.

Although there is no separate application for the GCK exam, as approval of the RWC application will qualify candidates to take this exam, there is a study guide available.

See additional information about the GCK exam/study guide below.

RWC Application Requirements

Applicants must have at least 4 years of waterproofing consulting experience.  Verification of an applicant’s education and/or work experience is done using a point system.

A minimum of 100 points is required and is based on one of the following:

  1. work experience only
  2. experience and education
  3. experience, education, and professional registration

and

  • 70 hours of continuing education through attendance and a minimum of three seminars within the roofing, waterproofing and/or exterior wall industries are needed for application approval.
  • 5 references are also required

RWC Application Process

Candidates are encouraged to use the online interactive electronic process to complete the application.

A user account is all that is required to log in to the portal to complete an application. You may enter and save the information until the application has been completed.  It can then be electronically submitted to IIBEC for review and approval.  Once begun, the application must be completed and submitted to IIBEC within one year or the application in process will expire.

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Applications in .pdf format are also available upon request.

90 days should be allowed for processing once an application is submitted to IIBEC.  The application will be processed within 60 days for an additional expediting fee ($50 member/$75 nonmember).

The RWC exam is administered online at over 1,000 conveniently located testing centers worldwide.  An exam registration form will be provided to the candidate when the application has been approved.  Once registered, the candidate will be contacted by Scantron, the Internet-based testing company, to schedule an exam.

Computer-based testing is offered on demand to approved candidates subject to individual testing center hours and availability. Consult Scantron for testing center locations.

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RWC Exam

The RWC online exam has 60 multiple-choice questions that include the following topics:  waterproofing materials, below-grade and above-grade systems, design, industry standards, and testing and investigation.  Some problems may involve mathematical computations that require familiarity with basic algebra, geometry and trigonometry.  The exam is 4 hours in duration.

Download a Registered Waterproofing Consultant (RWC) exam study guide.

Note: IIBEC Educational Programs, in particular the Waterproofing course, may prove useful for anyone planning to pursue the RWC credential.

Download Exam Study Guide

RWC Annual Renewal

A renewal fee is required annually, as well as 12 roofing, waterproofing, and/or exterior wall related continuing educational hours (CEHs).  All registrants are encouraged to self-report CEHs via the IIBEC website.

Annual Renewal Fee*
$175 – IIBEC member
$250 – Nonmember


*There is a 10% discount from the base renewal rate for each additional designation.

RWC Fees

Application Fee

$350 – IIBEC member
$425 – Nonmember

Examination Fee

$250 – IIBEC member
$325 – Nonmember

For more membership, registrations, and external IIBEC-approved continuing education information, contact a member of the Membership & Registration Team.

Membership & Registration Team

General Consultant Knowledge Exam

This exam tests knowledge common to all components of the building envelope (roofing, waterproofing and exterior walls).  This was designed to produce a more efficient testing process, eliminating common information being tested for each consultant designation.  To earn the RWC designation, a candidate must pass the general exam as well as the RWC Exam.  However, applicants who currently hold the Registered Roof Consultant (RRC) and/or Registered Exterior Wall Consultant (REWC) designation(s) are exempt from taking the GCK Exam.

If only one of the two exams is passed (the general or the technical), the candidate will be required to retake only the exam he or she failed.  The exam that has been passed will be valid until the candidate passes the other exam and the first consultant designation is earned.  Candidates who do not pass an exam will have the option to retry every four months with a valid application.

The exam is computer-based and offered at over 1,000 conveniently located testing locations. Visit Scantron for testing center locations.  The exam is 4 hours in length and consists of 90 multiple-choice questions which test knowledge in the following general consulting areas:  ethics, general skills, communications and reports, codes and standards, design processes, procurement processes, agreements, and construction administration.

All questions pertain to consulting practices in general and are applicable to all consultants, in spite of the discipline (roofing, waterproofing, exterior walls).

Download the General Consultant Knowledge (GCK) Exam Study Guide.

Note: IIBEC’s Professional Building Enclosure Consulting course is recommended for anyone planning to take the GCK exam.

General Consultant Knowledge Exam Fees

Examination Fee

$250 – IIBEC member
$325 – Nonmember


For more membership, registrations, and external IIBEC-approved continuing education information, contact a member of the Membership & Registration Team.

Membership & Registration Team