Leader in turnkey fabric buildings
Engineered to protect
Experts since 1965
Engineered to shelter livestock

Coverall Fabric Buildings by MegaDome: Engineered for all your projects

Our client commitment

Quality coverall fabric buildings start with a quality relationship.

At MegaDome by Harnois, the quality of our fabric buildings goes beyond top-tier materials and engineering — it’s rooted in the strength of our client partnerships. We believe that collaboration and open communication lead to superior results. By fostering a culture of transparency and teamwork, we ensure a seamless process from start to finish. Our dedication to precision and care in every coverall fabric building we craft is what keeps clients coming back, time and again.

Building trust with every project we deliver.

At its heart, MegaDome construction isn't about fabric structures. It's about people.

At MegaDome, we go the extra mile for our clients, building relationships founded on trust, confidence, and integrity. As a proud family-owned business, we bring a individualized touch to every fabric-covered building project we take on. Our commitment to people-first values is reflected in the way we treat our team, our partners and our clients. It’s this approach that drives our success and keeps our clients coming back high-quality coverall building solutions.

Family-Owned, Client-Focused

Building not just fabric structures, but strong relationships from the ground up.

Tailored Solutions, Turnkey Delivery

Personalized coverall building projects, from concept to completion.

Certified Excellence

Proudly delivering exceptional building services with a personal touch.

Made in Canada

Our MegaDomes are designed and manufactured in Canada to ISO 9001 and CSA A660 standards, our main HDPE membrane, Powershield®, is made in Canada.
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With over 55 years’ experience in manufacturing some of the world’s largest mining and industrial projects and enterprises, MegaDome knows what canvas buildings are all about.

Our Fabric Structure Projects

Fabric Coverall Building Benefits

Fabric coverall buildings offer unmatched versatility and durability, making them an ideal solution for a wide range of industries. Their clear-span interiors provide unobstructed space, allowing for efficient layouts and maximizing usable area. These buildings are constructed with high-strength steel frames and durable fabric covers that can withstand harsh weather conditions, including heavy snow, wind, and UV exposure. Additionally, their translucent fabric allows natural light to penetrate, reducing energy costs and creating a bright, functional environment for various applications, from storage to operational facilities.

Why choose MegaDome Buildings for your next projects

MegaDome buildings are engineered with precision and backed by decades of expertise, ensuring reliability and superior performance. We prioritize customization, tailoring every structure to meet the unique needs of your project—whether it’s for industrial, agricultural, or commercial use. Our buildings are constructed with high-quality materials and innovative design techniques, providing long-term durability and low maintenance costs. At MegaDome, we pride ourselves on delivering exceptional customer service, from the initial design phase to installation, making us the trusted choice for your next project.

FAQs about Fabric Structures and coverall fabric buildings

Coverall buildings are durable, versatile structures made from a galvanized steel frame and a fabric cover. They provide large, open spaces with clear-span interiors, making them ideal for various applications, such as equipment storage, workshops, livestock shelters, and more. These buildings are designed to be portable, cost-effective, and customizable to meet specific needs.

The best materials for coverall fabric buildings are galvanized steel for the frame and a high-density polyethylene (HDPE) fabric for the cover. Galvanized steel provides structural integrity and resistance to corrosion, while the HDPE fabric offers durability, UV resistance, and weather protection, ensuring long-lasting performance in diverse conditions.

Coverall buildings come in a wide range of sizes to accommodate various needs. They can span widths of up to 200 feet or more and can be customized to any length. Heights are also adjustable to provide adequate clearance for specific applications, such as housing large machinery or creating storage for bulk materials.

With proper maintenance, coverall buildings can last 20 to 30 years or more. The steel frames are designed to resist corrosion, and the fabric covers are made to withstand harsh weather conditions. Periodic inspections and minor repairs can extend the building’s lifespan significantly.

While fabric buildings offer numerous advantages, some potential drawbacks include limited insulation compared to traditional structures and susceptibility to damage from sharp objects or extreme weather if not properly maintained. However, advancements in fabric technology have significantly minimized these issues, making modern fabric buildings highly reliable.