The DuPont™ Tyvek® Specialist Network is an elite team of highly trained field representatives. These Specialists participate in a two or five year certification process that includes a university-level curriculum and rigorous testing in product knowledge and building science. The DuPont™ Tyvek® House Wrap Specialist Network is unique to the industry. The Canadian Team of Tyvek® Specialists can assist Builders, Architects, Retailers and Consumers with many aspects of both residential and commercial projects. Canada currently has 10 Tyvek® Specialists covering the following territories:
You can use this page to find the DuPont™ Tyvek® Specialist in your area or the
Specialist Locator.
You can also contact DuPont at 1-800-387-2122 or 1-800-44-TYVEK.
For a more detailed list of services provided by Tyvek® Specialist, please refer to the sections pertaining to
Builders,
Architects,
Retailers or
Consumers.
British Columbia
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Ernest Kortschack
Territory: British Columbia
Home Base: Surrey, BC
Email: Ernest.W.Kortschak@can.dupont.com
Telephone: (778) 772-4075
Ernie has been with DuPont for 30 years, holding a wide variety of positions in business management, project management, technology & business development, sales and product stewardship. His experience covers a broad spectrum of industries, including industrial and consumer safety products, textiles, plastics, packaging and medical products. Ernie is a Professional Engineer, with a degree in Mechanical Engineering from Queen’s University. He has received the Certificate in Management from the Canadian Institute of Management, University of Toronto School of Business and is currently completing the DuPont Building Science Tyvek® Specialist Certification program. Ernie is a member of the Greater Vancouver Home Builders Association, the BC Building Envelope Council, the Building Research Committee and is an AIBC (Architectural Institute of BC) Registered Provider of Continuing Education Learning Units.
British Columbia Interior & North
Ernest Kortschack
Territory: British Columbia
Home Base: Surrey, BC
Email: Ernest.W.Kortschak@can.dupont.com
Telephone: (778) 772-4075
Alberta & the Territories
Michael McCreary
Territory: Alberta & the Territories
Home Base: Calgary, AB
E-mail: mci.tyvekspecialist@shaw.ca
Telephone: (403) 607-9556
Michael McCreary has over 25 years experience in both commercial and residential construction. Working with companies including a window/door manufacturer, a lumber company and an exterior cladding supplier, he has held a variety of positions including Business Development, Marketing, Project Management and sales. Mike also has hands-on experience as a carpenter and framer and has owned his own business focusing on residential and commercial design. Throughout his career, Mike has been a proponent of on-going training in proper installation practices that help ensure the integrity of the building envelope and he has experience with a variety of methodologies, including the rain screen principle.
Mike is involved with the Calgary and Edmonton homebuilder associations and attends many events of the Alberta Association of Architects. He is also involved in his local community with the Canadian Progress Club (Bow River) which raises money for Big Brothers, Big Sisters and the Special Olympics. Mike is currently completing the DuPont Building Science Tyvek® Specialist Certification program.
Manitoba & Saskatchewan

Darryll Penner
Territory: Manitoba & Saskatchewan
Home Base: Winnipeg
Email: mbtyvekspecialist@gmail.com
Telephone: (204) 799-8010
Darryll has been in construction materials distribution for 12 years in various roles including 8 years in the Window and Door Industry as Business Development Manager and Sales and Marketing Manager. His experience includes managing dealer networks, product knowledge training sessions with builders, architects and engineers and developing marketing strategies at retail and wholesale level. Darryll is a member of the Manitoba Home Builders Association and is currently completing the DuPont Building Science Tyvek® Specialist Certification program.
South Western Ontario
Bruce Kelly
Territory: Central and Western Ontario
Home Base: London, ON
Email: bcktyvekspecialist@gmail.com
Telephone: (519) 857-8745
Bruce has been involved in many aspects of the construction industry for 18 years and has extensive experience with many aspects of the business, including the retail and distribution side of the business, the lumber industry and a wide variety of building materials used in residential and commercial building. Bruce does extensive training with builders, architects, dealers and building officials and can assist with specification writing and business planning. Bruce is a member of the Canadian Home Builders Association, has served on the Advisory Council for Ontario’s Best Practice Guide for Full Height Basement Insulation and is actively involved with the Habitat for Humanity. Bruce has a degree in Administrative and Commercial Studies from the University of Western Ontario and has attained his DuPont Building Science Senior Certification status as a Tyvek® Specialist.
Central and Eastern Ontario and Greater Toronto Area
Paul Locke
Territory: Central and Eastern Ontario
Home Base: Whitby, ON
Email: Paul.T.Locke@can.dupont.com
Telephone: (416) 988-8275
Paul has been with DuPont for 16 years and has extensive experience in technical and business development, sales and account management with the Automotive industry. Relatively new to the construction industry, he brings a wealth of experience in business planning, project management & training plus an understanding of supply chain and distribution networks. Paul has a degree in Applied Chemistry from the University of Waterloo. He is currently completing the DuPont Building Science Tyvek® Specialist Certification program and is on the Board of the Net Zero Energy Home Coalition (NZEH).
Quebec
Marco Couture
Territory: Eastern Quebec and the South Shore
Home Base: Cowansville, QC
Email: Marco_Couture@videotron.ca
Telephone: (450) 405-2442
Marco has been working in the construction business for more than 20 years and has a detailed knowledge of both the residential and commercial sides of the industry. Marco has worked as sales representative, a distribution specialist, has done project management, developed loyalty programs and assisted with business planning. Marco does on-site training and has developed a variety of seminars which provide detailed product and installation knowledge on matters relating to the building envelope for architects, building officials, spec writers, home builders, contractors and their crews. Marco has been a Tyvek® Specialist for 10 years and is certified in the DuPont Building Science program.
Atlantic Canada

Brian Chisholm
Territory: Atlantic Canada
Home Base: Bedford, NS
Email: Brian.Limier@live.ca
Telephone: (902) 209-4204
Brian Chisholm has over 30 years experience in the residential and commercial construction industry in Canada. He has held technical sales and specification management positions with Owens Corning and CertainTeed. He has extensive experience with the R-2000 initiative and was the 1st recipient of the CHBA National Marketing R-2000 award. Brian has been a member of the board of the NS Homebuilders Assoc. and the Atlantic chapter of Construction Specifications Canada where he served two terms as Chairman. Brian has a BBA in marketing from St. F. X. University and is currently completing the DuPont Building Science Tyvek® Specialist Certification program.
Builders
• Answers to questions on benefits and proper usage of DuPont Weatherization Systems products
• Customized sales and marketing programs
• Product training for your sales force, consumer literature, energy analysis, and model home programs
• Training for crews to ensure proper installation
Architects
• Assistance in specification and installation questions
• On-site training for crews to ensure proper installation
• AIA and Credit Courses with Canadian Institutions
Retailers
• Thorough product sales training to both internal and external salespeople
• Joint builder calls and training meetings help educate your customers on benefits of proper installation of DuPont Weatherization Systems
• Builder training meetings
• Customized marketing promotions and programs
• Inventory management programs designed to maximize turns
Consumers
• Answers to questions on benefits and installation of DuPont Weatherization Systems
• Easy-to-follow, comprehensive literature explaining DuPont Weatherization Systems benefits
Let our network of DuPont™ Tyvek® Specialists assist you during all phases of your project – be it designing commercial buildings, installing weather protection products, or remodeling your home. Whatever the job, our Specialists are industry-experts focused on solving any construction-related problem or need you may have.