With you every step of the way
Complete roofing and waterproofing solutions
Siplast is the industry leader in the development and manufacture of advanced, high-performance roofing and waterproofing systems. In the 1960s, working with Shell Chemical of Europe, Siplast developed SBS (styrene-butadiene-styrene) modified bitumens in response to the changing requirements of modern construction. We have always understood that different situations and times call for different and evolving solutions. That's why we also offer polymethyl methacrylate (PMMA) liquid resin products, single-ply systems, vegetated and reflective white roof systems, and reroofable lightweight insulating concrete roof insulation. Siplast is with you every step of the way to ensure your project vision fulfills the positive ways you want your work to impact the world.
- Paradiene 20/30 A lightweight, highly flexible two-ply membrane proven to retain elasticity through exposure to various weather elements. Learn More
- Parapro 123 Flashing Ideal for difficult flashing applications such as equipment supports, I-beams, H-beams, conduit, and unusually-shaped penetrations. Learn More
- Teranap Waterproofing System Torch-applied, two-ply system designed to meet the waterproofing challenges of plaza deck and vegetated roof systems. Learn More
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Siplast project stories
From schools, manufacturing facilities, and hospitals to museums and convention centers, we partner with you every step of the way to make your project vision a reality. Read some of our standout project stories here.Read profiles
Latest white papers & bulletins
Siplast Paragreen Pre-Grown Vegetated Roof Systems
A summary of the features and benefits of a Siplast pre-grown vegetated roof system — and how it accords with our philosophy of simplicity, practicality, and conservatism — plus a comparison of pre-grown vegetated blanket systems with modular systems.View now
Paradiene/PA-311M and PA-311R Adhesive Applications in Hot Weather
Guidelines for Paradiene systems installed with PA-311M and PA-311R Adhesive in warm temperatures, when it is helpful to modify certain project staging, and application techniques.View Now
Siplast fast facts
Our story is one of uncompromising quality, innovation, partnership, and commitment to our customers and their communities.
Take a look at what has made that story possible.
Kicked off a roofing revolution with SBS-modified bitumens
Styrene-butadiene-styrene modified bitumens — the product of our 1960s research partnership with Shell Chemical of Europe — helped modern design professionals rise to new and visionary building challenges across the globe.
Certificates of Analysis provide an indisputable assurance of quality
Siplast Certificates of Analysis are available upon request to provide assurance that your Siplast products meet or exceed our high manufacturing standards.
Helped build the world's largest "living" roof with the Ford Motor Company
In 2004, The Guiness Book of Records recognized the 10.4-acre Ford Truck Plant vegetated roof as the world's biggest, helping realize the Ford company vision of balancing lean manufacturing with meeting its environmental goals.
Renovated the iconic Seattle Space Needle — without closing to visitors!
Siplast helped renovate the observation deck of the beloved 57-year-old world icon without interruption to visitors.
Meet Your Siplast Partners
At Siplast, we never stop working to be your trusted partner. Meet some of the people who will be with you every step of the way.