PHONE (301)-996-7026 FAX (410)-551-2945 info@dvrconsulting.com

Meet our Consultants

Kevin L. Derr, P.E.
Principal

Mr. Derr is a graduate of the University of Maryland A. James Clark School of Engineering with a Bachelor of Science degree in fire protection engineering.  During his tenure at the University of Maryland, Mr. Derr was a teaching and research assistant for the Department of Fire Protection Engineering.  He assisted in teaching Fluid Dynamics for Fire Protection Systems and investigated the self-sustaining smoldering characteristics of polyurethane foam.  While attending the University of Maryland, Mr. Derr worked with a sprinkler contractor in his home town of Annapolis Maryland, an experience providing invaluable insight relative to the design and installation of automatic sprinkler systems.

Mr. Derr specializes in fire suppression system design, smoke management systems, mixed-use facilities, master planning, and building/life safety code consulting. His responsibilities include preparation of construction documents, and specifications of sprinkler systems for new, existing, and historic buildings; existing building assessment; building code interpretations/variation request preparation; and Third Party inspections of automatic fire detection and automatic sprinkler systems for the Metropolitan Washington, DC area

In addition to Mr. Derr’s project work, he participates on the NFPA Committees for Safety to Life – Business and Mercantile Occupancies (NFPA 101) and Smoke Management Systems (NFPA 92/204). His participation on these committees ensures that he provides clients with the most current code requirements.

Nathan J. Vander Roest, P.E.
Principal

Mr. Vander Roest obtained a Bachelor of Science in Fire Protection Engineering with a cooperative education endorsement from the A. James Clark School of Engineering at the University of Maryland College Park.  While attending college, Mr. Vander Roest was a resident firefighter/EMT at the College Park and Hyattsville Volunteer Fire Departments.  As a part of his course of study, Mr. Vander Roest engaged in a cooperative education program providing him valuable experience in fire protection engineering through alternating college semester coursework and full-time employment with nationally recognized fire protection engineering firms.

Mr. Vander Roest specializes in fire alarm systems, emergency communication/mass notification systems, medical facilities, fire protection system commissioning/testing, third party plan review, and life safety consulting. His responsibilities include the preparation of construction documents, specifications, and construction oversight of fire alarm systems for new, existing, and historic buildings; preparation of feasibility/due diligence studies; building code interpretations/variation request preparation; and Third Party inspections of automatic fire detection and automatic sprinkler systems for the Metropolitan Washington, DC area.

In addition to Mr. Vander Roest’s project work, he participates on the NFPA Committees for Safety to Life – Means of Egress (NFPA 101) and Building Code – Means of Egress (NFPA 5000). His participation on these committees ensures that he provides clients with the most current code requirements.