Our Mission - Our Values - Our Commitment

  Delta Rep Group is a statewide, Florida based manufacturer representation firm.
We take pride in representing quality manufacturers to provide our clients superior service and solutions throughout the building envelope with a focus on Division 7. 

   At Delta Rep Group we take a relationship minded, facility based approach, bringing solutions to the table with code compliance and profitability in mind. Core values of integrity, reliability and accountability that you have come to know and expect are the foundation of which this company was founded and of which it will exist.

Delta Rep Group - comprised of its 3 managing partners Dawn Holsinger, Justin Burnham and Wayne Heironimus will proudly represent our manufacturers while upholding these core values in everything we do. We look forward to the opportunity to change the way you think about professional manufacturer representation.

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Justin M Burnham





12+ Years Experience

Dawn Holsinger





17+ Years Experience

Wayne Heironimus





28+ Years Experience


Ina Crnalic



Administrative Assistant

2+ Years Experience

Delta's 3 Pillars of Focus


Representing companies that have the manufacturing capabilities to meet the ever growing demands of the construction industry


Florida based representation of national manufacturers - ensuring our clients get code compliant, warrantable products and systems.


Facility based approach ensuring our clients have project specific options that meet their expectations of quality while staying competitive.


SIPLAST Roofing & Waterproofing Systems



The Siplast story of uncompromising quality and commitment to our customers begins over half a century ago with an innovation that would change the commercial roofing and waterproofing industry. In the late 1960s, Siplast Research and Development, working in conjunction with Shell Chemical of Europe, developed SBS (styrene-butadiene-styrene) modified bitumens. We found that by properly modifying asphalt with SBS, we could produce a highly durable elastomeric blend with exceptional elongation/recovery properties over a wide range of temperatures.

There are Siplast roofs applied in the early years of our SBS blend that are still in service today. Since then, Siplast Engineered Roof Systems have been applied over all types of deck constructions, in the extremely varied weather conditions of more than 40 countries. That performance history has helped us earn our reputation as a leader in the development and manufacture of the world’s most advanced roofing and waterproofing systems.

Complete Roofing and Waterproofing Solutions

Siplast believes that no one product is appropriate for every use. Different conditions require different solutions. So, in addition to SBS-modified bitumen roofing materials, Siplast manufactures a line of polymethyl methacrylate (PMMA) liquid resin products for roofing and waterproofing applications. The products offer the application convenience of liquid-applied systems while meeting Siplast’s uncompromising performance standards.

Siplast is the only commercial manufacturer to offer a roof system package that combines SBS-modified bitumen membranes with the added benefits of lightweight insulating concrete. Siplast's SBS-modified bitumen roof membranes have a long performance history over lightweight insulating concrete. Our experience has shown that the insulation's encapsulated design provides a stable, monolithic surface for the roof membrane system. It has also demonstrated that the relatively high density of Siplast Lightweight Insulating Concrete can positively affect membrane life by impeding extreme temperature fluctuations and the resulting thermal stresses that can cause membrane fatigue.

Used together, Siplast SBS-modified bitumen roof membranes and Siplast Lightweight Insulating Concrete Systems result in a longer lasting roof. And, since Siplast Lightweight Insulating Concrete Systems are reusable, significant cost savings over the life of the building can be realized.


Our manufacturers


Kingspan Light + Air

 Sustainable building solutions, innovative new technologies, and award winning design. At the heart of Kingspan's approach is the drive to help our customers achieve improved 

building performance. Forty years ago, a small family construction business in Ireland decided to dream big. We are committed to providing pioneering new technologies in insulation and low energy solutions worldwide, as well as support sustainability efforts and communities here in
the  US


Resources and Tools

Corporate Mailing Address

Delta Rep Group

204 37th Ave N Suite 352, Saint Petersburg, Florida 33704, United States

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