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.  See additional information about the GCK exam below.


RWC Application

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

Once an application is submitted to RCI, allow 90 days for processing.  The application will be processed within 60 days for an additional expediting fee ($50 member/$75 nonmember).  The RWC exam will soon be available online at over 1,000 conveniently located testing centers worldwide. Target date is mid-2015.  An exam registration form will be provided to the candidate when the application has been approved.  Once the registration form and exam fees have been received, the candidate’s information will be conveyed to Castle Worldwide, the Internet-based testing company.  The applicant will then be contacted by Castle to schedule the testing session. 

Computer-based testing is offered on demand, to approved candidates, based on 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 pdf logo

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 on the website 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.  Currently, to earn the RWC designation, a candidate must pass the general exam as well as the RWC Exam. 

If only one of the two exams is passed, 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 initially pass an exam will have the option to retry every six months with a valid application.

Once passed, the general exam will not need to be retaken for the other RCI consultant designations.

The exam is computer-based and offered at over 1,000 conveniently located testing locations. Visit Castle Worldwide to locate a testing center near you. 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 process, procurement process, 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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