Frequently Asked Questions about Allsite Tension Fabric Structures

What is a tension fabric structure (TFS)?

The TFS is a clear span fabric building whose strength and durability make it suitable for many applications. It features industrial grade fabric and a heavy duty extruded aluminum beam roughly 6” x 15” in size. The fabric is fed between each beam and horizontal tension is applied to the fabric. This horizontal tension creates a drum tight fit for the fabric and adds strength and rigidity to the building. The TFS is strong enough for permanent installations and designed to be quickly installed for short term rental applications.

How is a TFS different from a tent?

A TFS is characterized by a large beam frame, horizontal tension and curved legs. These elements provide the stability and open architecture of the tension structure. In addition, tension fabric structures feature bolted connections rather than hinged for added strength. The TFS is engineered to sustain repeated high winds over up to a 50 year period while the engineering design for tents typically can handle winds over only short periods (less than a year). Tents typically are used for one time or short term use while the TFS is suitable for both temporary and permanent use.

Is TFS a temporary or permanent building?

The TFS is made to be easily constructed and deconstructed. Because of its quality materials and design, it can be used for either temporary use, such as conventions or construction site structures, or as permanent facilities, such as aviation hangars, warehouses and maintenance facilities.

What is the lifespan of a TFS?

The extruded aluminum frame of a TFS is engineered to last indefinitely, has a high resale value and is fully recyclable upon retirement. Allsite uses a heavy grade 25 oz PVC-coated material that can last up to 20-30 years even in extreme weather environments. These structures are very low cost to maintain and do not require a regular maintenance schedule.

How big is the TFS?

The TFS comes in a variety of sizes, ranging from 48 to 156 feet (15-48 meters) in width and 25 - 54 feet (8 -16.5 meters) in height. With its modular construction, any length structure is available, and is defined by your requirements. All structures are high clearance and open span interior design, free of columns or other impediments for uninterrupted available space.

What kind of options are available to customize my TFS?

Allsite TFS can be fitted with a variety of entryways depending on your need, including personnel/glass entry doors, cargo and freight doors, bi-fold, clamshell or open-end entry for aircraft or large equipment use. In addition, the system can be outfitted with lighting and electrical, ventilation systems, HVAC and insulation. We work with a variety of anchorage systems to fit any terrain. If you can install it on a brick and mortar building you most likely can install it on our structure as well.

Can we control the inside temperature and lighting?

The TFS can be equipped with electrical, space heaters, ceiling fans and HVAC systems. It is capable of all the functionality of a traditional building for needs such as lighting, signage and sound systems, accommodating power tools and equipment, and providing a fully climate controlled interior. We offer LED and metal halide high bay lighting options. Ventilation solutions include exhaust fans and louvers. An air filtration system can also be added.

How long has Allsite Structures been in business?

Allsite is part of the Alexander Pacific Group of companies, founded in 2005, offering the best tensile fabric structure solutions around the world. The company originally offered a variety of structures from canopies and event tents to TFS and steel structures. In 2012, Allsite Structure Rentals began to focus exclusively on the rental and sale of tension fabric structures.

Who are some of Allsite’s customers?

Allsite works with diverse industries in many applications including such areas as aviation, construction, mining, energy, events and tradeshows, agriculture, environmental remediation and sports and recreation. Our clients include Tesla, Embraer Aircraft Maintenance Services, Sevenson Environmental Services, Posillico Environmental Services, Siemens Energy, Gemma Power Systems, Envirocon, Rosendin Electric, Land Remediation, Ingersol Rand, General Dynamics, Langley Tennis Centre and TELACU Construction Management.

Is Allsite a “green” company?

Allsite structures are reusable and relocatable. Even structures used for permanent installation can be reused and repurposed. There is little to no construction waste, especially when compared to traditional brick and mortar. The aluminum frame can last indefinitely and is fully recyclable. Allsite is committed to recycling all office and building materials that can be recycled and we operate almost entirely paper-free.

Do you have a rental or lease program? Can I buy my TFS?

Yes, Allsite structures are available for short term rental or for short or long-term lease as well as for purchase. Ideally suited for both short and long term projects, and to accommodate your changing needs over time, our terms are as flexible as the structures so that we can deliver you a comprehensive and customized solution.

How much does a TFS cost?

Because construction and materials costs are much lower, a TFS is more cost effective than a traditional building. Operating and maintenance costs tend to be lower than traditional building use as well. The cost of your TFS will depend on its size and configuration, what options are included and the length of use. It also depends on whether yours is a rental, lease or purchase. Talk to an Allsite sales consultant about your project to get a free estimate on the cost of your structure.

How long is the warranty on a TFS purchase?

The TFS aluminum frame comes with a 10 year warranty. The fabric has up to a 7 year prorated warranty and depends on the type of fabric used for the project.   

Do I need to obtain a building permit?

Each project and jurisdiction is unique so we advise to consult with a local contractor or permit dept. For an installation less than six months generally you would need only a temporary fire permit. In many cases, if the building is used longer than six months, you can apply for an extension. For permanent or long term use, we advise going through the building permitting process.

Do I need to prepare the site it will be erected on?

 No. The TFS does not need a foundation and can be installed on almost any terrain, including concrete, asphalt, dirt, gravel and turf. With accommodation of anchoring systems, we can also install on uneven, rocky, frozen and muddy surfaces. During the project design process, your site will be inspected by an Allsite structure specialist in order to determine the correct anchoring solution for your installation.

How do you anchor? Can you build on concrete slab, asphalt, dirt and turf?

The TFS does not require a foundation and can be installed on almost any terrain. The structure is most often mounted with the use of rebar stakes. Concrete wedge anchors are used on concrete surfaces. On soft or impenetrable ground, the structure is mounted or chained to concrete blocks.

How quickly can I get my structure installed?

The TFS is designed for modular installation, making it quick to assemble and transport to your site. The installation takes place over a few days to a week, depending on the size and complexity of the project. Delivery and installation can usually be completed within a few weeks of order placement.

What if I want to move the TFS to a new location in the future?

The TFS can be easily and cost effectively relocated or expanded and is designed to be crane-liftable for applications where the structure needs to be relocated while fully assembled.

Will a TFS corrode or rust?

No, the aluminum alloy frame is corrosion and rust resistant and requires little maintenance or repair. The heavy-duty PVC fabric covering is formulated to resist mold, fungus, bacteria and damage from UV rays.

Can a TFS handle wind and snow load requirements for my location?

Our standard structures are built to handle extreme climates and will meet most wind and snow requirements, including high winds and heavy snowfall. Please speak to one of our structure specialists for exact requirements for your project.

Can structures be insulated?

Yes, liners and other solutions are available where applications require extra insulation. We can add up to R30 batting and can cover the insulation with a fabric liner. Speak to one of our structure specialists for more information.