Building Owners

Durable, Flexible and Energy Saving Solutions.

For over 100 years, SOPREMA has been providing building owners and facility managers with roofing and waterproofing solutions for everything from new construction, to retrofit and re-roofing projects. We offer a full line of components required to create watertight assemblies and are constantly improving that offering to meet the demands of our evolving industry.

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We succeed when you succeed.

Our SOPREMA Authorized Contractor Program features criteria for the contractor to ensure quality workmanship where SOPREMA products are used. This program also rewards our customers for their loyalty. Some features of the program include:

• Participation in our contractor training program
• Use of the SOPREMA logo in marketing materials
• Access to the SOPREMA store for SOPREMA branded wearables
• Eligibility to achieve membership in our SOPREMA Mammouth Club

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Design Professionals

You can rely on us like we rely on you.

SOPREMA is dedicated to providing the tools that you need to make your job easier. From continuing education programs tied to CEUs to new drawing details which allow you to customize your design or system directly from our website, we strive to provide valuable tools for our design professional partners. Our team of experts is here to help you succeed.

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Application Flexibility

SOPREMA’s specialized line of polymeric PMMA/PMA liquid applied membranes includes a complete offering of resins, reinforcements and accessories providing for a variety of seamless roofing and waterproofing solutions. The performance, durability, and application flexibility of SOPREMA liquid applied membranes is outstanding – from pedestrian to vehicular trafficable systems, for hard to access areas, or the need for high chemical resistance, SOPREMA has the flexible PMMA/PMA membrane solution. Customized finishes and ease of application also make this technology ideal when aesthetics are a consideration.

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Modified Bitumen

Proven and Durable

SOPREMA offers a wide variety of products manufactured with SBS-modified bitumen technology. SBS-modified bitumen is a proven technology providing the utmost in durability and reliability due to the products’ redundancy ensuring water tight structures. SOPREMA has been invested in bitumen technologies for over 100 years – our formulas and manufacturing process with SBS-modified bitumen are time-tested. SBS-modified bitumen products can be applied using a variety of methods allowing contractors and project/facility managers with the flexibility to complete the job in any weather climate. SOPREMA’s SBS-modified products range from traditional roofing membranes, specialized membranes for cool roofing applications, membranes specifically designed for waterproofing applications, to air and vapor barrier systems offering protection from air and water infiltration.

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Synthetic Membranes

Sophisticated Design

Our synthetic membranes include a line of high performance membranes composed of plasticized PVC (thermoplastic polyvinyl chloride ). These products, marketed under the SENTINEL® brand name are inherently fire and chemical resistant and offer design flexibility for use in both low and steep slope applications. Our PVC membranes are offered in a variety of colors including our Copper Art and Silver Art variations where metallic powders have been included in the formulation replicating the appearance of standing seam metal roofs for sophisticated designs.

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SOPREMA has a strong history of industry ‘firsts.’ From the very first waterproofing membrane of modern times created by our founder, to the latest innovation in the roofing industry - our Mammouth NEO product derived from 75 percent renewable resources, SOPREMA is rooted in building material innovations.

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Sustainable Products

At the heart of SOPREMA’s company values, the environment receives our focus and attention on a daily basis, particularly as it relates to manufacturing and R&D. SOPREMA was one of the first roofing manufacturers to establish an Environmental Management Program, and the first modified bitumen manufacturer to earn ISO 14001 certification.

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Our History

In 1908, Charles Geisen founded the “Alsatian Emulsion Factory”, the forerunner of SOPREMA. Charles Geisen’s stroke of genius came when he began dipping jute cloth into hot bitumen. The result was a light weight, solid, strong sheeting which has been acknowledged by many to be the first waterproofing membrane of modern times.

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News & Events

SOPREMA is a member of a variety of trade associations and actively participates in industry events and shows. Click here for a listing of events where SOPREMA will be exhibiting or participating.

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SOPREMA offers a vast array of roofing solutions allowing for peace of mind in design and application. From the proven, redundant, durable protection of SBS-modified bitumen, to the multifunctional problem solving features of highly flexible PMMA/PMA liquid applied systems, to the aesthetic and functional options of PVC, SOPREMA has the time tested solution. SOPREMA has been expertly investing in the roofing industry for over 100 years.


From plaza or parking decks to below grade foundation walls, insulating concrete forms or garden roof systems, SOPREMA provides a variety of waterproofing solutions including SBS-modified bitumen, liquid applied PMMA/PMA products and hot fluid applied rubberized asphalt.

Wall Systems

For a complete building envelope, built with the durability you've come to know in our roofing and waterproofing products, SOPREMA offers a comprehensive line of air and vapor barrier products ranging from self-adhered sheets to highly specialized factory laminated air and vapor barrier to exterior grade gypsum.

Civil Engineering

For waterproofing and protection of bridges, dams, canals, tunnels and more, SOPREMA has a specialized line of products including SBS-modified bitumen, polymeric liquid applied, and synthetic thermoplastic membranes and accessories.

Featured Projects

205 AVENUE C – New York, New York

SOPRASMART® laminated boards combine the roof membrane and coverboard into one installation layer, saving the installer time and labor. This patented product is the first and only in its category, bringing material savings to the equation as well.

San Francisco War Memorial – San Francisco, California

SOPREMA’s advanced PMMA membrane system, ALSAN® RS 230 was chosen for waterproofing this international landmark because of the ease of installation in tight areas and short time schedule.