FORTRESS MOISTURE MANAGEMENT
Rough Opening Accessory (ROA) Installation Kits
for Windows, Doors, Packaged Terminal Air Conditioners (PTAC),
and other square or rectangular rough openings.

ROA Installation Kits For Windows, Doors, Packaged Terminal Air Conditioners (PTAC)
The ultimate defence in
PREVENTING WATER FROM LEAKING IN THE ROUGH OPENINGS OF EXTERIOR WALL ASSEMBLIES.
Fortress Installation Systems is a rough opening water/moisture management system that gets installed within the rough opening of windows, doors, PTAC units, or any other square or rectangular opening in an exterior wall assembly. Our rough opening installation system are the solution to preventing water ingress into a building’s exterior wall assembly.
The Fortress components and design of how the system works is based on practical known engineering principles.
The design of the Fortress Rough Opening Accessory (ROA) Kits creates a moisture protective drainage chamber within the sill area of the rough opening that prevents sudden and gradual water ingress by safely deflecting moisture out of the rough opening.
95% of building envelope failures that cause severe damage to the building’s envelope and building’s structure is attributed to the poor rough opening construction detailing. This is unacceptable. Fortress has the solution.
Fortress Rough Opening Accessory (ROA) Kits when properly installed are warrantied and insured by Lloyds of London for $10M per occurrence, warranting that water ingress in the sill/pan area will not occur or cause structural damage, mold or rot to the building structures. Our Fortress Rough
Our Fortress Rough Opening Accessory (ROA) Kits are paired with industry leading flashing tapes and industry leading spray foam insulations, and are installed within the cavities between the exterior wall assemblies and the windows, doors, or PTAC units, to insulate and seal the gaps providing a moisture deflecting assembly within the rough opening. This prevents the occurrence of rot and mold. It also prevents structural damage.
Fortress Installation Systems offers building and home owners a Limited Life Time Warranty.
For Builders, Window Manufacturers, Dealers
For Homeowners
Homeowners, your home is likely to be one of the largest investments you will make. You deserve the very best when it comes to quality, products, and warranties provided. Your investing for the long haul…for the building’s life. Fortress Installation Systems is guaranteed to stop water ingress causing rot and mold to a buildings structure often originating in a window or doors rough opening sill pan area—This is the most failure-prone area of any building structure.
Effortless Installation
It is as easy to install as you can get! It fits together like lego. With just a few simple steps, your rough openings will be protected against water ingress with a warranty. Checkout our INSTALLATION and RESOURCES pages for more details on how to install Fortress Installation Systems

- Happy customers = Repeat or referred customers
- Low cost and increased safety
- Limited Lifetime Warranty
- Zero Liability, Zero Service calls for leaks
- Greater profits, Zero installation Warranty costs
- Easy and consistent installation every time
- Custom programs to meet your purchasing requirements
- Sales, installation and warranty support
- Built Green APPROVED
- Exceeds moisture management and energy loss requirements for NET ZERO
- The only window, door, PTAC unit, and air conditioner unit installation system that contributes to LEED credits, and the only eligible system that can or is insured Carrying a products and completion Guarantee
- Creates Thermal Break
Supply area worldwide
Since 2012, Fortress Installation Systems Inc. has been spreading the word of our remarkable Rough Opening Accessory (ROA) Installation Kits. Whether you are a builder who is interested in offering homebuyers the ultimate benefits of Fortress Installation Systems’s remarkable technology for their biggest lifetime purchase, or a potential dealer who wants to learn more about stocking and selling Fortress Installation Systems to your customers, we would love to hear from you. If you reside or do business anywhere in North America & Worldwide, we will be standing by to respond promptly to your request for more information.
If you are interested in learning more about the benefits and savings to be realized with the use of Fortress Installation Systems, please contact us so that we can confirm our product, customer service and marketing support availability in your area.
