How do Fabric Tension Buildings Work and How Long Do They Last?

Chances are, you’ve seen or at least heard of fabric tension buildings. These large domed structures have quickly been gaining prominence in industrial, agricultural, and even recreational applications thanks to their more affordable price point, rapid construction, and versatility in design. But what exactly is a tension building? And can a building made of fabric hold up against the elements long term?

This blog will cover some of the most frequently asked questions regarding the construction and durability of fabric tension buildings and what makes them a popular choice across various industries.

What is a Fabric Tension Building?

As the name suggests, a fabric tension building is a structure that relies on tightly stretched, durable fabric over a sturdy frame to create a functional and weather-resistant shelter. Three components go into constructing this type of structure: the foundation, the frame, and the fabric.

Foundation

Depending on the intended use and location, there are several options for the choice of base or foundation for fabric tension structures. In some cases, a temporary anchor system may be used to provide stability but also allow flexibility to move or expand the structure as needed. For more permanent installations, concrete or other fixed foundations are often chosen to provide a long-lasting base.

Frame

The skeleton or frame for the fabric building is one of the most crucial elements. These are not your typical A-fame tent structures; the ribs, trusses, and base plates are meticulously crafted to adhere to stringent engineering standards ensuring long-term structural integrity even in harsh environments.

Modern tension fabric buildings use high-quality, extremely durable galvanized steel to form the framework of the structure which ensures maximum strength while minimizing corrosion.

Fabric

When it comes to tension building coverings fabric choice is very important as it will impact both the functionality and durability of the structure. Most tension-building fabrics are made of PVC-coated polyesters or other advanced polymers, chosen for their durability and resistance to environmental stress. PVC polyesters, for instance, feature a woven polyester base that’s coated with PVC for enhanced strength, flexibility, and weatherproofing while protecting against UV rays, moisture, and mildew. The fabric’s strength comes from the denier—or thickness—of the filaments within the weave, much like the way multiple twisted cables enhance the strength of suspension bridges.

How Long Do Fabric Tension Buildings Last?

Despite their seemingly simplistic construction, tension fabric buildings are built to last. Coverings can easily endure 15 to 30 years, depending on materials, environment, and maintenance, while the galvanized steel frame often boasts a service life of 30 to 50 years or more.

Factors like intense UV exposure, heavy snow loads, or coastal humidity can impact durability, but selecting fabrics like PVC with protective coatings helps these structures resist weathering and wear. Regular maintenance is also key to extending the lifespan of a fabric building. Simple tasks like clearing snow buildup, cleaning the canvas, and taking care of minor damage or tears can dramatically extend the building’s longevity.

Overall, fabric tension buildings offer the durability and functionality of a traditional structure at a fraction of the cost, making them a smart, long-term choice for a wide range of commercial and industrial uses.