FortiFlash Waterproof Flashing is a self-adhered membrane designed for long-term protection against water intrusion in residential and commercial construction. As part of the Henry 1-2-3 Moisture ControlSystem™, it offers a robust solution for sealing windows, doors, and other vulnerable areas in building envelopes. The product is supported by a 15-year warranty that includes both materials and labor for warranted repairs, ensuring peace of mind for installers and building owners.
This article provides a detailed overview of the product’s features, installation methods, and compatibility with other materials. The information is based on official documentation and technical specifications provided by Henry, a trusted name in construction materials.
Product Overview and Key Features
FortiFlash is engineered to deliver durable, cost-effective protection in high-moisture environments. It is designed for use in a variety of applications, including window and door flashing, as well as non-rooling horizontal areas such as sill pans, parapets, and pot shelves. The product is available in multiple roll widths and thicknesses to accommodate different project requirements.
Key Features
- Rubberized Asphalt Core: This core provides resistance to delamination and tearing, ensuring long-term durability under various environmental conditions.
- Self-Sealing Properties: The membrane seals around nails and fasteners, maintaining watertight integrity even after installation.
- Strong Adhesion: The self-adhesive backing allows the flashing to remain in place without the need for additional mechanical fasteners.
- AAMA 711 Compliance: The product meets industry standards for performance, including adhesion, flexibility, and resistance to environmental stress.
- Compatibility with Moistop® Sealant: FortiFlash can be used in conjunction with Moistop® Sealant, enhancing the overall moisture control system.
- Butyl Compatibility: The product is also compatible with FortiFlash Butyl, which can be used in conjunction with the membrane for added durability.
These features make FortiFlash a versatile and reliable solution for a wide range of construction needs.
Available Sizes and Specifications
FortiFlash comes in multiple roll widths and thicknesses, offering flexibility for different project requirements. The product is available in the following sizes:
- 4 inches
- 6 inches
- 9 inches
- 12 inches
- 18 inches
- 36 inches (available only in 40 mil thickness)
The roll length is standardized at 75 feet, and the thickness options are 25 mil and 40 mil. The 40 mil thickness is typically used in high-moisture or high-traffic areas, while the 25 mil option is suitable for general applications.
These dimensions allow installers to select the most appropriate size and thickness for their specific needs, ensuring efficient and effective coverage.
Installation Methods and Technical Guidelines
Proper installation is critical to ensuring the effectiveness of FortiFlash. The product is designed for self-adhesive application, which simplifies the installation process and reduces the need for additional tools or fasteners. The following installation methods are recommended based on the exposure level to wind and water:
Low Wind and Water Exposure (Methods A and A1)
For areas with minimal wind and water exposure, such as standard window and door installations, FortiFlash can be applied using the following methods:
- MAWRB-6A-L1 Flanged Window Section Method A
- MAWRB-6A-L2 Flanged Window Sequence Installation Method A
- MAWRB-6A1-L1 Flanged Window Section Method A1
These methods involve placing the flashing along the flanged edge of the window or door frame, ensuring full contact with the substrate. The self-adhesive backing allows the membrane to remain in place without additional fastening.
Pan Flashing at Sill (Methods B and B1)
For applications involving pan flashing at sills, such as recessed windows or parapets, the following installation sequences are recommended:
- VPWRB-6A-P1 Flanged Window Section Method A - Pan flashing at sill
- VPWRB-6A-P2 Flanged Window Sequence Installation Method A - Pan flashing at sill
- VPWRB-6A1-P1 Flanged Window Section Method A1 - Pan flashing at sill
- VPWRB-6A1-P2 Flanged Window Sequence Installation Method A1 - Pan flashing at sill
- VPWRB-6B-P1 Flanged Window Section Method B - Pan flashing at sill
- VPWRB-6B-P2 Flanged Window Sequence Installation Method B - Pan flashing at sill
- VPWRB-6B1-P1 Flanged Window Section Method B1 - Pan flashing at sill
- VPWRB-6B1-P2 Flanged Window Sequence Installation Method B - Pan flashing at sill
These methods involve installing the flashing along the sill area to direct water away from the structure. The flashing should be applied in a continuous strip, ensuring full adhesion to the surface.
Low Wind and Water Exposure (Sequence Methods for B1)
For areas with low wind and water exposure where sequence installation is preferred, the following methods apply:
- VPWRB-6B1-L1 Flanged Window Section Method B1 - Low wind and water exposure
- VPWRB-6B1-L2 Flanged Window Sequence Installation Method B1 - Low wind and water exposure
These methods are particularly useful for large-scale installations where uniformity and precision are required.
Each method is supported by downloadable technical guides and diagrams, which provide step-by-step instructions for proper application. These resources are available directly from Henry’s official documentation and are essential for ensuring compliance with industry standards.
Compatibility with Other Materials
FortiFlash is designed to work in conjunction with other Henry products to create a comprehensive moisture control system. The following materials are compatible with FortiFlash:
- Blueskin® VP100 Self-Adhered WRB: This weather-resistant barrier enhances the effectiveness of FortiFlash by providing an additional layer of protection against water infiltration.
- FortiFlash Butyl: This butyl-based flashing can be applied in conjunction with the membrane to reinforce critical joints and seams.
- Moistop® Sealant: Used to seal gaps and joints, this sealant enhances the watertight integrity of the flashing system.
By integrating these materials, installers can create a multi-layered defense against moisture, ensuring long-term protection for the building envelope.
Warranty and Support
One of the most compelling aspects of FortiFlash is the 15-year warranty offered by Henry. This warranty covers defective products and includes both materials and labor for warranted repairs when the product is used as part of the Henry 1-2-3 Moisture ControlSystem™. This is a significant advantage over many other flashing products, which typically offer coverage only for materials.
The warranty is backed by a single point of contact, streamlining the repair process and reducing delays. This support structure ensures that any issues related to product performance can be addressed promptly and efficiently.
Henry also provides extensive technical support through its team of advisors. By completing a contact form, users can request assistance with product selection, installation guidance, and system design. This support is particularly valuable for complex projects where precision and compliance are essential.
Environmental and Sustainability Considerations
Henry emphasizes sustainability in its product development and manufacturing processes. FortiFlash is part of the company’s broader commitment to environmentally responsible building solutions. The product is designed to reduce the need for rework and maintenance, thereby minimizing waste and extending the life of the building envelope.
Additionally, Henry encourages collaboration with architects, contractors, and building owners to develop customized moisture control systems that meet both functional and environmental goals. This approach aligns with industry trends toward green building and energy efficiency.
Conclusion
FortiFlash Waterproof Flashing is a high-performance, self-adhered membrane that provides reliable protection against water intrusion in a variety of construction applications. Its rubberized asphalt core, self-sealing properties, and strong adhesion make it a durable and versatile solution for both residential and commercial projects.
The product is available in multiple sizes and thicknesses, allowing installers to select the most appropriate option for their specific needs. With a range of installation methods and compatibility with other Henry products, FortiFlash can be integrated into a comprehensive moisture control system.
The 15-year warranty, which includes both materials and labor, offers additional assurance of product quality and long-term performance. This makes FortiFlash a cost-effective and reliable choice for construction professionals seeking a trusted solution for water management.
For users seeking technical support, Henry provides a wealth of resources, including installation guides, product specifications, and expert consultation. These tools help ensure that FortiFlash is applied correctly and effectively, maximizing its protective capabilities.