Commercial Roofing and Waterproofing

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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-modified bitumens in response to the changing requirements of modern construction. We have always understood that certain times and unique situations call for different and evolving solutions. That's why we also offer PMMA liquid resin products, single-ply systems, vegetated and reflective white roof systems, reroofable lightweight insulating concrete roof insulation, and a host of other systems. 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.

Featured systems

Paradiene 20/30 SBS-Modified Bitumen
A lightweight, highly flexible two-ply membrane proven to retain elasticity through exposure to various weather elements.
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Parapro 123 PMMA Flashing
Ideal for difficult flashing applications such as equipment supports, I-beams, H-beams, conduit, and unusually-shaped penetrations.
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Parasolo Single-Ply
Synthetic membrane system installed in a variety of configurations, including hybrid systems or traditional single-ply applications.
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Teranap SBS-Modified Bitumen Waterproofing
Torch-applied, two-ply system designed to meet the waterproofing challenges of plaza deck and vegetated roof systems.
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A new angle on a trusted partnership

Today, as roof design professionals expand their engagement to the full building enclosure, we’re proud to support that step with a full suite of above-grade wall components that provide the same manufacturing quality and system performance as Siplast roofing systems.

Learn About Building Enclosure Solutions

Professional resources

Building Owners
Access the information most relevant to your needs, from product literature to technical documents and information on guarantees — as well as overviews of Siplast's products, areas of expertise and past projects.
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Contractors
The information contractors need most in one place—including details, installer's guides, safety data sheets, and installation videos. Plus, login for Select Contractor Application for Roof Guarantee.
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Design Professionals
Get your job done even more efficiently using Siplast guide specs, commercial product data sheets, opportunities for continuing education, and more.
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Latest white papers & bulletins

Siplast Vegetated Roof System Technology
A summary of the features and benefits of a Siplast vegetated roof system - available in both SBS-modified bitumen and PMMA liquid-applied waterproofing options.
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Paradiene with PA-311 Adhesive Applications
Guidelines for Paradiene systems installed with PA-311 Adhesives in warm temperatures, when to modify certain project staging, and application techniques.
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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.

Latest Siplast Journal

Quarter 2
In this quarter's Siplast Journal, read about our high-performance product offering and preview our calendar of upcoming events.
Read the journal

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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.

The RISE Center: Tensile Testing for SBS-Modified Bitumen

Watch how SBS-modified bitumen roofing materials are tested to determine how they perform over their lifetime.

About us

The Siplast story began in the late 1960s with a game-changing innovation: the development of SBS (styrene-butadiene-styrene) modified bitumens in partnership with Shell Chemical of Europe. Since then, Siplast has worked closely with our clients to apply trusted, high-performance Siplast Engineered Roofing and Waterproofing Systems — including SBS-modified bitumen, polymethyl methacrylate (PMMA) liquid resin, as well as vegetated roof systems - across all types of deck construction in the varied (and sometimes extreme!) weather conditions of 40+ countries.

With you every step of the way

Document Lookup

Complete roofing and waterproofing solutions

Featured systems

A new angle on a trusted partnership

Professional resources

Building Owners

Contractors

Design Professionals

Siplast project stories

Latest white papers & bulletins

Siplast Vegetated Roof System Technology

Paradiene with PA-311 Adhesive Applications

Siplast fast facts

Kicked off a roofing revolution with SBS-modified bitumens

Certificates of Analysis provide an indisputable assurance of quality

Helped build the world's largest "living" roof with the Ford Motor Company

Renovated the iconic Seattle Space Needle — without closing to visitors!

Latest Siplast Journal

Quarter 2

Meet Your Siplast Partners

The RISE Center: Tensile Testing for SBS-Modified Bitumen

About us

Help and Support

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