TESTIMONIALS
Distributors and Installers,
Proven in the Field
This was my first solar project, and I was doing it on my own personal home. I was apprehensive at first about putting solar on my flat TPO membrane roof due to roof penetrations. I then discovered Solar Stack. The company was great from start to finish. They provided me with all the data sheets in the beginning, provided instruction through online live class, and answered all my questions along the way. Using the adhesive cold foam, I was able to do the install part of the project myself. I would highly recommend this product for the ease of installation and their first-class customer support.
Tony Sammarco
CEO, Blue Horizon Homes
Our team at Advanced Integrated Solar recently completed a 2.5MW solar installation on a 24/7 manufacturing facility where roof penetrations were absolutely off the table due to the risk of leaks and potential disruption to high-value equipment inside. Ballasted systems weren’t an option either—the building simply couldn’t support the added weight.
Solar Stack was the perfect solution. We installed over 10,000 Solar Stacks without a single roof penetration, preserving the integrity of the roof while staying fully compliant with engineering and safety requirements. The install process was incredibly efficient—we saved a significant amount of time compared to traditional mounting methods.
For projects where drilling is a risk and ballast is impossible, Solar Stack is the clear answer. It’s reliable, fast, and lets us tackle complex commercial installs with complete confidence. Simply put, Solar Stack is the best solution for commercial roofs—it addresses structural, waterproofing, and installation challenges all at once.
Matt Allison
CEO - Advanced Integrated Solar
Our crew had very positive things to say about the ease of installation. Learning the system was quick, and the materials were minimal, which meant less to haul onto the roof. We saved on time and labor costs while eliminating the need for mechanical mounts or ballast blocks. It’s a smarter, cleaner way to install solar.
Lew Rosengrant
Project Manager – Solar Mite Solutions
Solar Stack is an innovative solar panel mounting solution that utilizes commercial-grade foam adhesive to secure panels to rooftops, eliminating the need for screws or penetrative fasteners. This product is particularly well-suited for TPO, and flat roofs, where maintaining the integrity of the roofing membrane is a priority, as well as metal roofs seeking a non-invasive installation method.
In our experience, the Solar Stack has proven to be an excellent choice for projects requiring a reliable, penetration-free mounting system. We’ve successfully installed it on both TPO and metal roofs, shipping container and the results have been consistently impressive. The commercial-grade foam provides a strong, durable bond that holds up under various environmental conditions, ensuring long-term stability for solar panel arrays.
Beyond its performance, the Solar Stack stands out for its practicality. The materials have always arrived in a timely manner, allowing us to maintain project schedules without delays. This reliability, combined with its ease of use and effectiveness, makes it a standout product in the solar installation market.
Overall, we at Zion Solar recommend the Solar Stack for anyone looking to install solar panels on TPO, flat, or metal roofs without compromising the roof’s surface. It’s a great solution that delivers both quality and convenience.
Dallin Spriggs
Owner – Zion Electric & Solar
We’ve been working with Solar Stack for about 2–3 years and were one of the earlier adopters in the Mid-Atlantic region. It’s become our default design choice for all applicable roofs on new projects. Our team loves the versatility and flexibility of the Solar Stack product — it adapts well to the wide range of roof types and project conditions we work with. On top of that, having a direct line to Sam has been invaluable. Whether it’s materials, installation methods, or engineering questions, he’s always quick to provide exactly what we need. That level of support makes a huge difference in our project success
Jeff Cheng
Project Manager – Solar Solution DC
I was hesitant at first when I was introduced to Solar Stack. I have been in the industry for a while and just wasn’t sure about adhering an entire system down. I gave it some time on the market and watched as they gained more and more certifications. Finally a couple projects came up where it was just the right product to use and I gave it a try. The installation was smooth after being properly trained up and the final look of the systems turned out really nice. Then came hurricane Ian and it rolled right over the top of us. One of my systems sat through around 12 hours of winds up to 150 mph and another was less than 1/2 mile from the coast and experienced similar weather. Both systems came through the storm beautifully with not one panel leaving the roof and no attachments pulling up. It has definitely gained my confidence and I will continue to use Solar Stack and recommend it to others without hesitancy.
Buca Forrester
Managing Director – Region Solar
We’ve installed Solar Stack on multiple projects, and we find it to be a quick, clean, and straightforward system to build. We’re efficient when we use Solar Stack, which is good for us and our client. Specifically, we save a lot of time and effort because there are no ballast blocks and wind deflectors. Of course, it’s also a huge benefit that we can avoid roof penetrations. Our crews enjoy working with Solar Stack and look forward to more projects utilizing the system.
Jason Sosnovsky
CEO – Pine Energy
Solar Stack proved to be the perfect racking solution for Spear’s cold storage facility rooftop solar project, as it met the necessary wind speed requirements without penetrating the roof. Its lightweight design ensured we didn’t have to worry about compromising the building’s structural integrity. With our facility’s strict no-penetration policy, Solar Stack was truly the best and only option for our needs.
Mark Rangel
EVP - Commercial Business Development and Preconstruction – Spear Commercial & Industrial
As a solar installer using SolarStack’s products, I’ve found their mounting solutions to be highly efficient and straightforward. Their innovative racking system is designed to make installations quicker and easier. The user-friendly design of their products, with intuitive assembly and minimal components, significantly reduces installation time and labor costs. Plus, the mounting systems are engineered to avoid roof penetration, which helps to maintain the integrity of the roof and prevent potential leaks. Overall, SolarStack’s solutions have been a game-changer for me, simplifying the installation process and improving overall productivity.
Tony Ramudo
Chief Development Officer – Urban Solar
We used Solar Stack for the first time at a commercial multi-family project on the West coast of Florida. Solar Stack was perfect for this installation as the number of obstructions and rooftop HVAC equipment made it very difficult for us to design a ballasted system without the necessary use of many penetrating attachments into the roof. Beyond that, Solar Stack allowed us complete the installation more efficiently and quickly than any other flat roof racking product we’ve ever used. By eliminating the ballast blocks from our material list for this project, we were able to save a ton of money on labor and the small crew we had working the job was ecstatic that they didn’t need to carry concrete blocks from one side of the roof to the other! We certainly look forward to using Solar Stack again in the near future!
Griffin Moran
Project Manager – 15 LIghtyears
I have been installing solar for the past 10 years and am normally very skeptical of new racking solutions, especially in the commercial space. I have been determined to find a project where I could use this product (partially because I thought Solar Stack was too good to be true). Solar Stack is a game changer! The efficiency and ease of installation of this product is something I did not believe, but was blown away by. The quickness of the installation process from measurement to installed panels, easily saved us a day in labor if not more on our small commercial project. I look forward to being able to use this product on a much larger scale. The customer service Solar Stack provided throughout this process is one to highlight. They were accessible and answered all my questions when needed.
Spencer Swift
Director of Installs – Dawn to Dusk Solar
I am excited to share our experience with the Solar Stack solar material. This product has significantly enhanced our operations, saving us both man-hours and substantial material costs. On several projects where roof penetration was not an option, Solar Stack provided the perfect solution. The installation process was fast and straightforward, eliminating the need for roof penetrations and ensuring compliance with our customers’ requests. We are currently designing over a dozen projects using Solar Stack products and we are confident in the efficiency and reliability they offer. In particular, the tilt set we utilized for a local gas station installation resulted in remarkable savings in both labor and materials. Solar Stack has become an invaluable asset to our company, and we look forward to continued success with their products.
Naaman Hagman
Senior Construction Manager – Vital Energy Solutions
I can’t tell you how great your Solar Stack is, it has cut our time in half on tile roofs. Our installation crew loves It, and so do our customers. I can’t believe how much money it’s saved me. Thanks again, Tim!
