CertainTeed Roofing - Modified Bitumen
CertainTeed
Roofing Products - Commercial
With commercial roofing solutions from CertainTeed™ there's a product for every project big or small, from the company who has been manufacturing state-of-the-art roofing…
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Product Summary
With commercial roofing solutions from CertainTeed™ there's a product for every project big or small, from the company who has been manufacturing state-of-the-art roofing materials for more than a century.
Construction and Materials
CertainTeed offers a range of Modified Bitumen roofing systems designed for superior performance and durability. These systems are engineered to meet the demands of various building types and climates, providing robust waterproofing and long-term protection.
The construction of CertainTeed Modified Bitumen roofing typically involves a multi-ply system. This approach builds up layers of specialized materials to create a seamless and watertight membrane. Key components often include:
- Base Sheet: This is the foundational layer of the system, providing a stable underlayment for subsequent layers.
- Inter Ply Sheet: Additional layers can be added to enhance the overall strength and performance of the membrane.
- Cap Sheet: The top layer is a specially formulated surfacing material that provides the primary weather protection. It is often granulated for UV resistance and aesthetic appeal.
The materials used in CertainTeed Modified Bitumen systems are engineered for resilience and longevity. The core of the system is bitumen, a petroleum-based asphaltic substance, which is modified to improve its performance characteristics. Two primary modification types are commonly used:
- APP (Atactic Polypropylene): APP modification enhances the bitumen's elasticity, UV resistance, and high-temperature stability. This makes it particularly suitable for hot climates and applications requiring resistance to thermal aging.
- SBS (Styrene-Butadiene-Styrene): SBS modification imparts excellent flexibility and elasticity to the bitumen, allowing the membrane to withstand structural movement and temperature fluctuations. SBS-modified bitumen is known for its superior low-temperature performance and crack resistance.
These modified bitumen layers are reinforced with various materials to provide dimensional stability and tensile strength. Common reinforcing materials include:
- Polyester Mat: Offers high tensile strength and puncture resistance, allowing the membrane to adapt to building movements without tearing.
- Fiberglass Scrim: Provides excellent dimensional stability and resistance to stretching and shrinking.
The surfacing of the cap sheet is designed to protect the underlying bitumen from the elements, especially ultraviolet (UV) radiation. Options for surfacing include:
- Granules: Mineral granules embedded in the surface reflect sunlight, reducing heat absorption and prolonging the life of the roofing system. These are available in various colors to complement building aesthetics.
- Foil Surfaces: Some products may feature a reflective foil surface for enhanced solar reflectivity.
Installation methods for CertainTeed Modified Bitumen systems can vary depending on the specific product and application, but commonly include:
- Hot Asphalt Application: The bitumen layers are adhered using hot asphalt.
- Torch Application: Heat is used to melt the bitumen and bond the layers together.
- Cold Adhesive Application: Specialized cold adhesives are used for bonding, offering a VOC-compliant option.
- Self-Adhered (SA) Systems: These membranes feature a factory-applied adhesive, requiring only the removal of a release film for installation.
These systems are suitable for a wide range of roof slopes, from low-slope to virtually flat applications, and are often utilized on commercial, industrial, and institutional buildings where robust waterproofing is essential.
Features and Benefits
CertainTeed offers a comprehensive range of Modified Bitumen roofing systems designed for durability, performance, and ease of installation. These multi-layered systems provide superior protection against the elements, making them an ideal choice for low-slope and flat roof applications.
Key Features and Benefits
- Robust Weather Protection: Modified Bitumen membranes are engineered with asphalt modified with polymers (APP or SBS) to enhance flexibility, elasticity, and resistance to extreme temperatures and UV exposure. This ensures long-term protection against rain, snow, and hail.
- Enhanced Durability: The multi-ply construction of CertainTeed's Modified Bitumen systems provides exceptional tear strength and puncture resistance, reducing the risk of damage from foot traffic or falling debris.
- Versatile Installation Options: These systems can be installed using various methods, including:
- Fully Adhered: Provides a monolithic surface and excellent wind uplift resistance.
- Torch Applied: Utilizes heat to fuse layers together, creating a strong, continuous seal.
- Cold Applied: Offers a safer installation option without the need for open flames.
- Self-Adhered: Features a factory-applied adhesive for quick and easy application.
- Fire Resistance: Select CertainTeed Modified Bitumen products meet stringent fire resistance standards, providing an added layer of safety.
- Energy Efficiency Options: CertainTeed offers cool roof options within their Modified Bitumen lines that reflect solar radiation, helping to reduce building cooling costs and contribute to a more sustainable environment.
- Single-Ply and Multi-Ply Systems: The product range includes both single-ply membranes for simpler applications and multi-ply systems for demanding performance requirements.
- Mineral Surface Granules: The exposed surface is typically covered with mineral granules, which offer UV protection, aesthetic appeal, and enhanced fire resistance.
- Reinforced Construction: Many membranes incorporate polyester or fiberglass reinforcement layers to further increase tensile strength and dimensional stability.
Core Advantages
- Longevity and Reliability: The advanced materials and construction of CertainTeed's Modified Bitumen roofing systems translate to a significantly extended service life, reducing the frequency and cost of replacements.
- Performance in Demanding Environments: These systems are formulated to withstand the rigorous demands of flat and low-slope roofing, performing reliably in a wide range of climatic conditions.
- Cost-Effectiveness: While offering premium performance, CertainTeed's Modified Bitumen solutions provide excellent long-term value due to their durability and low maintenance requirements.
- Ease of Integration: The systems are designed to integrate seamlessly with various building components and accessories, simplifying the roofing process.
Options-Styles
CertainTeed offers a robust selection of Modified Bitumen roofing systems designed for durability and performance. These systems are engineered to provide exceptional waterproofing for a variety of low-slope and flat roof applications.
Style and Options
CertainTeed's Modified Bitumen roofing solutions encompass a range of styles and application methods to suit diverse project needs:
- Fully Adhered Systems: These systems offer a completely bonded roof assembly, providing excellent wind uplift resistance and a monolithic waterproofing layer.
- Mechanically Fastened Systems: Utilizing fasteners to attach the roofing membrane, these systems offer a cost-effective and efficient installation for many low-slope projects.
- Torch Applied Systems: This method uses heat to fuse the modified bitumen plies together, creating a seamless and highly durable waterproof membrane.
- Cold Applied Systems: For projects where open flame is not permissible, cold adhesive systems provide a secure and reliable waterproofing solution without the need for torches.
Membrane Options
Within these system types, CertainTeed provides various membrane options, primarily categorized by their polymer modification:
- APP (Atactic Polypropylene) Modified Bitumen: Known for its excellent UV resistance, high-temperature performance, and durability. APP membranes are often chosen for their long-term weathering capabilities.
- SBS (Styrene-Butadiene-Styrene) Modified Bitumen: Offers superior flexibility, particularly at low temperatures, and excellent elasticity. SBS membranes are well-suited for climates with significant temperature fluctuations and for roofs with potential movement.
Surface Options
CertainTeed Modified Bitumen membranes are available with a range of surfacing options to enhance performance and aesthetics:
- Granule Surfaced Membranes: These membranes feature a factory-applied mineral surfacing that provides UV protection, fire resistance, and a finished appearance. Available in various colors to complement building aesthetics.
- Foil Surfaced Membranes: Incorporate a reflective foil surface to reduce heat island effect and offer energy savings by reflecting solar radiation.
- Coated Membranes: Some systems may include specialized top coats for enhanced durability, reflectivity, or specific performance requirements.
Underlayments and Components
To ensure a complete and high-performing system, CertainTeed offers a comprehensive range of compatible underlayments, insulation boards, and accessories. These components are critical for providing a stable deck, optimal thermal performance, and ensuring the integrity of the waterproofing layer.
The selection of a specific CertainTeed Modified Bitumen system will depend on factors such as the building's structural design, climate, aesthetic preferences, and project budget. Each system is engineered to meet rigorous industry standards for waterproofing and durability.
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