Registered Waterproofing Consultant - RWC®                               Bookmark and Share

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.

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

5 references are also required.

For more information, consult the RWC Application.
Download an RWC Application and Study Guide (.pdf) pdf logo


RWC Application Process


90 days should be allowed for processing once an application is submitted to RCI.  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 Castle Worldwide, 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 for testing center locations.


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.

RWC Application and Study Guide

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

RWC Fees


Application Fee

Examination Fee

$350 - RCI member

$250 - RCI member

$425 - Nonmember

$325 - Nonmember


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 RCI website.  Directions for this process are available at or upon request.


Annual Renewal Fee*

$175 - RCI member

$250 - Nonmember


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


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 six months with a valid application.

The exam is computer-based and offered at over 1,000 conveniently located testing locations. Visit Castle Worldwide 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). 
General Consultant Knowledge Exam Study Guide pdf logo


General Consultant Knowledge Exam Fees


Examination Fee

$250 - RCI member

$325 - Nonmember


For more information contact RCI.


Registration Programs

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