Established in 1955, Siplast is renowned for its high-end modified bitumen membranes and liquid-applied roofing products. For more than 35 years, Siplast has been a leader in the development and manufacturing of the world's most advanced roofing and waterproofing systems.

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Commitment to Innovation

Our reputation was built on an uncompromising commitment to drive innovation in the waterproofing and commercial roofing industry and make products that stand the test of time. Siplast Engineered Roof Systems are designed to last.

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  • 1955

  • 500+

  • 454K ft²

    Largest Green Roof (NA)
A Work of Art

When it came time to waterproof the famous Carrousel du Louvre in Paris, France, Siplast was the only company trusted to deliver results.

Leading the Field

The Tasso Stadium is a rooftop arena above a car park in Marseilles, France. We created a waterproofing system that manages rainwater to help maintain the natural, open-air field.

A Flexible Formula

In the late 1960s, we developed SBS-Modified Bitumens and a roofing and waterproofing system with unprecedented flexibility and stress-absorption. This new formula gave engineers and architects the ability to design groundbreaking lightweight roofing structures.

Join the Siplast Team

We are always looking for talented, hard-working people to help us build the industrial future. Join us.