SOPREMA Bituminous Waterproofing Products for Flat Roof Systems

SOPREMA bituminous waterproofing products are designed for use within flat roof systems where long-lasting waterproof protection, durability and dependable performance are required. At North West Roofing Supplies, we can help supply a wide range of SOPREMA flat roofing products, including cap sheets, underlayers, air and vapour control layers, roof detail products, primers, glues and accessories for both new build and refurbishment projects.

This makes SOPREMA a strong choice for contractors, roofers and builders looking for proven flat roofing materials for warm roofs, cold roofs, inverted roofs and single-layer bituminous waterproofing applications.

SOPREMA Products We Can Supply

The SOPREMA bituminous waterproofing range includes a number of product groups used to build a complete flat roof system. North West Roofing Supplies can help supply the products needed for the waterproofing build-up, including membranes and associated system components.

Cap Sheets

SOPREMA cap sheets are used as the upper layer of the waterproofing system. These products form the external weatherproof finish of the roof and help protect the structure from rain, wind and general exposure. Cap sheets are one of the most important visible elements within a bituminous flat roof specification.

Underlayers

Underlayers are used beneath the cap sheet as part of the built-up waterproofing system. These membranes help form the main waterproofing build-up and support the durability and long-term performance of the roof.

Air and Vapour Control Layers

Air and vapour control layers are used within the roof build-up to help manage air leakage and moisture movement. These products are important in many flat roof systems and support the overall effectiveness of the specification.

Roof Detail Products

Roof detail products are used around edges, penetrations, upstands, outlets and junctions where accurate waterproofing is essential. These areas are often some of the most critical parts of the roof, so using the correct detail products is important for achieving a reliable finish.

Primers and Glues

Primers and glues are used to prepare surfaces, improve adhesion and support the correct installation of flat roofing materials. These products are often required as part of the wider waterproofing system.

Accessories

SOPREMA accessories help complete the roof build-up and support installation, compatibility and finishing across the waterproofing system.

Popular SOPREMA Bituminous Waterproofing Products

As well as the wider product groups above, North West Roofing Supplies can help supply popular SOPREMA membranes that customers may search for directly by name.

SOPRATORCH SL 500

SOPRATORCH SL 500 is a cap sheet membrane made from elastomer modified bitumen with a non-woven polyester reinforcement. SOPREMA states that the upper surface is finished with slates, the overlap is protected by a thermofusible film, and the lower surface is also protected by a thermofusible film. It is used as an upper layer within a single or multi-layer waterproofing system. SOPREMA lists it as an SBS membrane with polyester reinforcement, slates on top, thermofusible film underneath, and a thickness of 4.7 mm in 8 m x 1 m rolls. :contentReference{index=1}

SOPRATORCH SL 400

SOPRATORCH SL 400 is a reinforced bituminous roofing membrane composed of elastomer modified bitumen and a non-woven polyester reinforcement. SOPREMA describes it as intended for use as a reinforced bituminous sheet for roof waterproofing. The listed product line includes 8 m x 1 m rolls with a thickness of 4 mm. :contentReference{index=2}

SOPRATORCH SG 400

SOPRATORCH SG 400 is a membrane composed of plastomer modified bitumen with a composite polyester reinforcement. SOPREMA lists this product within its cap sheet range, with the shown product line including 8 m x 1 m rolls and a thickness of 3.9 mm. :contentReference{index=3}

Where SOPREMA Bituminous Waterproofing Products Are Used

SOPREMA says its bituminous waterproofing range is suitable for a variety of flat roof constructions and project types. These products can be used within:

• Warm roof systems
• Cold roof systems
• Single layer flat roof systems
• Inverted roof systems
• New build roofing projects
• Flat roof refurbishment works
• Commercial flat roofs
• Domestic flat roofs

Why These Products Matter in a Flat Roof Build-Up

A flat roof system relies on more than just one membrane. To create a robust and watertight roof, the full specification often includes multiple layers and supporting products. Cap sheets provide the exposed weathering surface, underlayers build the waterproofing system, air and vapour control layers help manage moisture, and detail products, primers and accessories help complete the installation correctly.

Using the right combination of SOPREMA products is important when aiming to achieve the correct specification, installation method and long-term roof performance.

Why Choose SOPREMA from North West Roofing Supplies?

• Access to a wide range of SOPREMA flat roofing products
• Help sourcing named products such as SOPRATORCH SL 500, SOPRATORCH SL 400 and SOPRATORCH SG 400
• Expert advice from experienced roofing professionals
• Competitive trade pricing and bulk order support
• Nationwide delivery or local branch collection

SOPREMA Products from North West Roofing Supplies

At North West Roofing Supplies, we supply roofing materials for trade professionals, contractors and domestic customers looking for trusted flat roofing products. If you are searching for SOPREMA cap sheets, underlayers, vapour control layers, primers, accessories or specific membranes such as SOPRATORCH SL 500, SOPRATORCH SL 400 or SOPRATORCH SG 400, our team can help you source the right products for your next project.

Whether you are carrying out a refurbishment, specifying a new flat roof or looking for dependable waterproofing materials, we can help you find suitable SOPREMA products for the job.

Get in Touch for SOPREMA Waterproofing Products

Looking for SOPREMA bituminous waterproofing products? Call North West Roofing Supplies today, visit your nearest branch, or contact us for help choosing the right membranes and roofing system components for your project.