Johns Manville Weatherization & Flashing - Ice & Water Barrier
Johns Manville
JM Ice and Water Guard
JM Ice and Water Guard is a self-adhering membrane composed of rubberized asphalt roofing sheet with a strong inorganic glass mat for reinforcement.
or Give us a Call
Product Summary
JM Ice and Water Guard™ is a self-adhering membrane composed of rubberized asphalt roofing sheet with a strong inorganic glass mat for reinforcement. SureGrip™ is used under shingles, slate, shakes and tiles. It prevents leaks and damage to decking and internal structures from wind blown rain and water backup due to ice dams. SureGrip™ is also used as a vapor barrier for roofs, walls and floors.
Construction and Materials
Johns Manville offers a range of high-quality weatherization and flashing products designed to protect your building envelope from the elements. These products primarily function as ice and water barriers, crucial for preventing moisture intrusion and the associated damage that can occur, especially in challenging weather conditions.
The construction of Johns Manville's ice and water barrier products typically involves a robust, multi-layer system engineered for superior performance and durability. While specific construction details can vary slightly between product lines, the core principles remain consistent:
- Reinforced Membrane: A key component is a specially designed membrane that forms the primary barrier against water penetration. This membrane is often reinforced to enhance its strength, tear resistance, and ability to conform to roof deck irregularities.
- Adhesive Layer: A critical feature is the self-adhering capability. This layer allows the product to securely bond directly to the roof deck or other underlayments, creating a continuous waterproof seal without the need for fasteners that could create potential leak points. The adhesive is formulated for excellent adhesion in a wide range of temperatures.
- Surface Treatments: The top surface of the membrane may incorporate features to enhance grip and workability, such as a slip-resistant texture. The bottom surface is protected by a release liner that is removed just prior to installation.
The materials utilized in the construction of Johns Manville's ice and water barriers are selected for their resilience, performance, and long-term effectiveness:
- Polymer-Modified Asphalt: This is a primary material used for its excellent waterproofing properties and flexibility. It provides a reliable barrier against both liquid water and ice dams.
- Polyester or Fiberglass Reinforcement: High-strength reinforcement fabrics, such as polyester mats or fiberglass scrim, are incorporated into the asphaltic layer. This reinforcement significantly improves the product's tensile strength, dimensional stability, and resistance to puncture and tearing.
- Release Liner: A silicone-coated paper or plastic film serves as the release liner. This material protects the aggressive adhesive layer during storage and handling and is easily removed during application.
- Granulation or Surfacing: Some products may feature a granular surface for enhanced UV protection and to provide a suitable substrate for subsequent roofing materials.
These carefully selected materials and robust construction methods ensure that Johns Manville's ice and water barriers provide an essential layer of protection against moisture damage, contributing to the longevity and integrity of the building's roof system.
Features and Benefits
Johns Manville offers a comprehensive range of weatherization and flashing solutions designed to protect your building envelope from moisture intrusion and extreme weather conditions. Our products are engineered with advanced materials and innovative designs to provide reliable, long-lasting performance, ensuring the integrity and comfort of your home or commercial structure.
Core Advantages
- Superior Moisture Protection: Our ice and water barrier membranes create a robust seal against wind-driven rain and melting ice, preventing water from seeping into vulnerable areas of your roof deck and building structure.
- Enhanced Durability: Constructed with high-quality materials, Johns Manville weatherization products are designed to withstand harsh environmental factors, offering exceptional longevity and reducing the need for premature replacement.
- Ease of Installation: Thoughtfully designed for efficient application, our products simplify the installation process, saving valuable time and labor for contractors.
- Building Envelope Integrity: By effectively managing water and air infiltration, our solutions contribute to a healthier and more energy-efficient building, protecting against mold, mildew, and structural damage.
- Commitment to Innovation: Johns Manville continuously invests in research and development to bring cutting-edge solutions to the market, ensuring our products meet and exceed industry standards for performance and reliability.
Product Features and Benefits
Ice & Water Barrier Membranes
Johns Manville provides a selection of high-performance ice and water barrier membranes that form a critical secondary defense against moisture. These membranes are designed to be applied directly to the roof deck, offering superior adhesion and self-sealing properties around fasteners.
- High-Tack Adhesive: Ensures a secure and lasting bond to the roof deck, preventing uplift and water migration.
- Tear-Resistant Surface: Designed to withstand the rigors of installation and rooftop traffic.
- Excellent Conformability: Adapts easily to roof contours, valleys, and eaves, providing complete coverage and sealing potential leak points.
- Withstands Extreme Temperatures: Maintains performance in both hot and cold weather conditions, crucial for reliable roof protection year-round.
- Protects Against Ice Dams: Specifically engineered to prevent water from backing up and infiltrating the roof structure due to ice dams.
Flashing Products
Our flashing solutions are essential for sealing transitions and penetrations within the building envelope, such as around chimneys, vents, skylights, and wall assemblies. These products work in conjunction with our ice and water barriers to create a continuous system of protection.
- Versatile Application: Suitable for a wide range of roof types and architectural designs.
- Durable Materials: Constructed from robust materials that resist degradation from UV exposure and weather elements.
- Seam Integrity: Provides a reliable seal at seams and joints, preventing water ingress.
- Ease of Integration: Designed to integrate seamlessly with other roofing and weatherization components.
Weatherization Products
Beyond the roof, Johns Manville offers weatherization products that contribute to the overall defense of the building envelope. These products play a key role in preventing air and water infiltration through the walls and other building components.
- Air and Vapor Barriers: Help to control air movement and manage moisture vapor within wall assemblies, enhancing energy efficiency and indoor air quality.
- Window and Door Flashing: Specifically designed to seal around openings, preventing leaks and drafts.
- Protection from the Elements: Creates a critical barrier against wind, rain, and other environmental factors that can compromise building performance.
By utilizing Johns Manville's weatherization and flashing products, builders and homeowners can achieve a higher level of building envelope performance, ensuring long-term protection, energy savings, and occupant comfort.
Options-Styles
Johns Manville offers a range of high-quality ice and water barrier products designed to provide superior protection against water intrusion, particularly in vulnerable areas of a roof. These products are essential components of a comprehensive roofing system, safeguarding against damage caused by ice dams and wind-driven rain.
The primary product line in this category is Johns Manville's portfolio of premium self-adhering modified bitumen membranes. These membranes are engineered with advanced adhesive technology for a reliable, long-lasting bond to the roof deck and other underlayment layers. Their robust construction offers excellent tear strength and puncture resistance, ensuring durability throughout the product's lifespan.
Available styles and options for Johns Manville ice and water barriers typically include:
- Self-Adhering Membranes: These are the cornerstone of the product offering. They feature a factory-applied adhesive that activates upon removal of a release film, allowing for quick and secure installation without the need for torches or adhesives. This method minimizes application errors and enhances worker safety.
- Various Thicknesses: Johns Manville may offer membranes in different thicknesses to meet specific project requirements and building codes. Thicker membranes generally provide enhanced durability and performance.
- Roll Sizes: Products are available in standard roll sizes, commonly designed for efficient coverage of roof areas. Specific dimensions can vary depending on the product.
- Surface Treatments: Some products may incorporate specific surface treatments for enhanced grip, UV resistance, or compatibility with subsequent roofing materials.
These ice and water barriers are specifically designed for use in critical areas such as eaves, valleys, rakes, and around roof penetrations like chimneys and vents. Their application helps to create a watertight seal, preventing water from migrating beneath shingles and into the building structure.
- Homepage
- Products
- Ideas, Tips & Tools
- Specifications
- Instructions
- About Us
- Video
-
Green - Environmental
- Product Availability and Pricing Click here for details
-
Similar Products
- See all our Weatherization & Flashing products.