
SBS Modified Bitumen Membrane Description
SBS Modified Bitumen Membrane is made using SBS (Best Bitumen Modifier) polymer modified bitumen and polyester film in rolls of 1 mm wide and 4 mm thickness. The dimensions of each roll is 10 square Meter.
The combination of bitumen modified with SBS polymer and tear-resistant polyester film has made waterproofing unique and has unique properties that make it completely distinct from similar products, including Characteristics are the ability to withstand cold and excellent flexibility in cold, mechanical properties and remarkable tensile strength, excellent adhesion to a variety of building materials and a very important self-repairing property. waterproofing is the best option for insulating sensitive and important structures.
ZUMRUT Co Bitumen Roll sheet is available on a variety of finishes in silica powder, mineral aggregate, aluminum foil and polyethylene film on request.
SBS Modified Bitumen Membrane Characteristics
SBS (Styrene-Butadiene-Styrene) Modified Bitumen Membrane are widely used in roofing and waterproofing applications due to their enhanced performance characteristics. Here are the key characteristics of SBS modified bitumen roll sheets:
- Flexibility:
– Low Temperature Flexibility : SBS modified bitumen remains flexible at low temperatures, making it suitable for colder climates where other materials might become brittle.
– High Elasticity : The SBS polymer provides rubber-like properties, allowing the membrane to stretch and recover, which helps accommodate structural movements and thermal expansion and contraction. - Adhesion :
– Strong Bonding : SBS modified bitumen offers excellent adhesion to various substrates, ensuring a strong, durable bond.
– Seam Integrity : The material can form tight, secure seams that resist water penetration, contributing to effective waterproofing. - Durability :
– Weather Resistance : SBS modified bitumen sheets are resistant to weathering, aging, and environmental stress, ensuring long-term performance.
– Puncture and Tear Resistance*: The addition of SBS enhances the membrane’s resistance to punctures, tears, and other mechanical damage. - Ease of Application :
– Torch-On and Cold Adhesive Methods : SBS modified bitumen can be applied using the torch-on method or cold adhesives, providing versatility in installation.
– Ease of Handling: The material is relatively easy to handle and install, making it a preferred choice for many contractors. - Waterproofing Efficiency :
– High Impermeability: SBS modified bitumen membranes provide superior waterproofing, effectively preventing water infiltration and protecting underlying structures.
– Seamless Application : The ability to create seamless applications minimizes the risk of leaks and enhances overall waterproofing performance. - UV Resistance:
– UV Stability : While SBS modified bitumen is generally more susceptible to UV degradation than APP modified bitumen, it can still provide good UV resistance, especially when combined with protective surface treatments like mineral granules or reflective coatings. - Thermal Stability :
– Moderate Temperature Resistance : SBS modified bitumen can withstand moderate temperature variations, but it is more flexible at lower temperatures compared to APP modified bitumen. - Surface Finishes :
– Granular Surface : Mineral granules provide additional UV protection and aesthetic appeal.
– Smooth Surface : Often used as a base layer for other protective coatings or surfacing materials.
– Film-Faced Surface : Polyethylene or other films facilitate handling and installation. - Chemical Resistance :
– Moderate Chemical Resistance: SBS modified bitumen has good resistance to various chemicals, making it suitable for industrial environments. - Compatibility with Other Materials :
– Versatile Use : SBS modified bitumen is compatible with various construction materials, allowing for versatile application in different types of projects.
These characteristics make SBS Modified Bitumen Membrane a highly effective and versatile choice for roofing and waterproofing applications, providing reliable protection and durability under a wide range of conditions.
SBS Modified Bitumen Membrane Applications
SBS (Styrene-Butadiene-Styrene) modified bitumen membrane are highly versatile and used in various applications due to their enhanced performance properties. Here are some of the primary applications of SBS modified bitumen membranes:
- Roofing Systems :
– Flat Roofs : SBS modified bitumen membranes are ideal for flat and low-slope roofs in both commercial and residential buildings. Their flexibility and durability make them suitable for roofs that experience significant thermal movement.
– Pitched Roofs : They can also be used on pitched roofs, providing excellent waterproofing and weather resistance.
– Green Roofs : SBS membranes are used as the waterproofing layer in green roof systems, protecting the underlying structure from water infiltration. - Waterproofing*:
– Foundations and Basements : SBS membranes provide reliable waterproofing for below-grade structures, preventing water ingress into basements and foundations.
– Tunnel Waterproofing : They are used to waterproof tunnels, protecting them from groundwater and ensuring structural integrity.
– Bridges and Viaducts : SBS modified membranes are employed in the waterproofing of bridge decks and viaducts, offering durability and resistance to mechanical stresses. - Parking Decks :
– Structural Deck Waterproofing : SBS membranes are used in parking decks to provide a waterproof barrier that protects the structural deck from water damage and chloride ion ingress, which can lead to corrosion of reinforcing steel. - Balconies and Terraces :
– Surface Waterproofing : SBS modified bitumen membranes are applied on balconies and terraces to create a waterproof layer that prevents water from seeping into the structure below. - Damp-Proof Courses :
– Moisture Barrier : SBS membranes are used as damp-proof courses in masonry construction to prevent rising damp from the ground, which can damage building materials. - Planter Boxes and Retaining Walls :
– Waterproof Linings : They are used to line planter boxes and retaining walls, preventing water seepage and protecting the structural integrity of these elements. - Roof Gardens and Inverted Roofs :
– Inverted Roof Systems : In inverted roof systems, SBS membranes serve as the waterproofing layer beneath the insulation, providing robust protection against water ingress. - Cold Storage Facilities :
– Thermal and Moisture Barrier : SBS membranes are used in cold storage facilities to provide both waterproofing and a moisture barrier, essential for maintaining controlled environments. - Industrial Applications :
– Chemical Resistance : SBS membranes are suitable for industrial applications where moderate chemical resistance is required, protecting structures from potential chemical exposure.
The versatility, flexibility, and durability of SBS modified bitumen membranes make them suitable for a wide range of applications, ensuring long-lasting protection against water and environmental damage.

Advantages of SBS Modified Bitumen Membrane
- Compatibility with all types of flat roofing applications, but can also be used to waterproof car park decks, bridge decks, green roofs etc.
- Resistance to the most extreme weather conditions such as high and low temperatures, rain, snow, ice and the freeze-thaw process.
- Life expectancy of SBS bitumen membrane is remarkable, even after ageing it retains its pliability and elasticity, making it the ideal flat roof solution.
- Dimensional stability is provided by the high quality SBS bitumen blend together with a high performance reinforcement, enabling the waterproofing system to accommodate building movement.
- Installation is simple and can be achieved through a variety of methods; torch-applied, mechanically fixed or adhered, depending on the specification and suitability.
- Security and peace of mind for the building owner is achieved through the installation of a robust, multilayer, built up felt SBS modified bituminous waterproofing system.
- High resistance to mechanical damage and puncturing in comparison to alternative flat roof coverings. Extreme resistance variants are available depending on the traffic requirements of the surface.
- Excellent adhesion to the substrate on a flat roof installation (demonstrated by peel testing)
- Quality control is increased when installing factory produced rolls of SBS modified bitumen.
- In most cases, when a bituminous flat roof system reaches the end of its service life, a single layer overlay can be installed over the top of the existing system to extend and renew the longevity of the waterproofing system.
Zumrut Guarantee
ZUMRUT Co. Bitumen Roll Sheet Guaranteed by more than 25 years in the field, excellent aging properties, extensive thermal operating range (-20/+100), versatile and reliable at any latitude, fast and easy to apply even on structures with complex shapes.
ZUMRUT SBS Modified Bitumen Membrane
| SBS Modified by Thickness | Unit | TSG 2 | TSG 3 | TSP 3 | TSP 4 | TSP 3S* | TSP 4S* | TSAL2 | TSP3 AL | TSP4 AL | TSP3 F* | TSP4 F* | TSP40A | TSP50A |
| Reinforcement | GlassFiber | GlassFiber | Polyester | Polyester | Polyester | Polyester | Aluminum | Polyester | Polyester | Polyester | Polyester | Polyester | Polyester | |
| Thickness | mm | 2 | 3 | 3 | 4 | 3.5 | 4.5 | 2 | 3 | 4 | 4 | 4 | 3,5 | 4,5 |
| Flow Resistance | °C | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| Cold Bending | °C | -20 | -20 | -20 | -20 | -20 | -20 | -20 | -20 | -20 | -20 | -20 | -20 | -20 |
| Tensile Strength | (N/50mm) (md/cmd) | 400/300 | 400/300 | 800/600 | 800/600 | 800/600 | 800/600 | NA | 800/600 | 800/600 | 800/600 | 800/600 | 800/600 | 800/600 |
| Elongation | % (md/cmd) | 2/2 | 2/2 | 35/35 | 35/35 | 35/35 | 35/35 | NA | 35/35 | 35/35 | 35/35 | 35/35 | 35/35 | 35/35 |
| Upper Surface Coating | – | PE | PE | PE | PE | Slated | Slated | PE | Aluminum | Aluminum | Fine Sand | Fine Sand | Slate | Slate |
| TDS | TSG 2 | TSG 3 | TSP 3 | TSP 4 | TSP 3S* | TSP 4S* | TSAL2 | TSP3 AL | TSP4 AL | TSP3 F* | TSP4 F* | TSP40A | TSP50A |



