Siplast Eco activ
Siplast's red and blue s-bug

With you every step of the way

Document Lookup

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

Looking for a document? Search now

WALLcontrol design professionals

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.

Professional resources

Space Needle

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 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.

Latest Siplast Journal

Eco-Activ SBS rolled sheet contractors

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.