So, you’ve got an old air-supported structure—maybe it’s your arena, warehouse, or event space—and it’s starting to show its age. The fabric’s faded, the blower’s making weird noises, or you’re just not getting the energy efficiency you used to. As a guy who’s been in the air-supported structure (ASS) game for over a decade, I get it. You don’t want to just tear it down and start over—those builds are pricey, and if your structure’s still holding air (even if it’s not perfect), upgrading is way more cost-effective. Let me walk you through how we do it, from the small stuff to the big-ticket overhauls. No boring jargon, just real talk from someone who’s fixed more of these than I can count. Air Supported Structure
First off, let’s cut to the chase: before you even grab a wrench or call in the big guns, you need to do a full audit of your existing structure. I can’t tell you how many times I’ve showed up to an upgrade job only to find out the fabric has hidden rips or the blower is undersized for the leaks we didn’t see at first. Here’s what that audit looks like for us. Start with the fabric—walk the entire outer membrane (and inner membrane, if you have a double-layer structure) and check for any signs of wear: faded areas, peeling seams, small tears from equipment knocking against it, or even mold if it’s been sitting damp for a while. If your structure’s been up for 10+ years, that fabric is probably brittle too—flex it a little in a corner; if it cracks or crumbles, that’s a red flag. Next, hit the blower system. Turn it on, hold your hand near the seams and fabric to feel for air leaks (no fancy tools needed here, just your hand and patience). Check the motor’s runtime—if it’s been running 24/7 to keep pressure up, that’s a huge efficiency red flag. Also, make sure the pressure control sensor is calibrated right; a lot of old ones get out of whack, so the blower’s either working too hard or not keeping the structure stable. Finally, check the foundation and anchor points. If you’re in a windy area, those concrete footings or ground anchors might have shifted, or the tension cables are frayed. This audit is non-negotiable—skip it, and you’ll waste time and money on upgrades that don’t fix the root problem.
Okay, audit done. Now let’s talk about the actual upgrades, starting with the easiest (and cheapest) ones first—because why not save cash where you can. The first thing most people don’t think about is the blower and pressure control system. Old blowers are energy hogs. A 10-year-old blower might use 2x the electricity of a modern variable-speed blower. We replace these all the time, and it’s a game-changer. The variable-speed ones automatically adjust airflow based on the structure’s air pressure—so if it’s calm, it runs slow; if it’s windy or someone opens a door, it kicks up a notch. That cuts energy bills by like 30-50% for most clients. Pair that with a new digital pressure sensor, and you’ll never have to manually adjust pressure again. We also throw in a filter upgrade when we do this—dust and debris clog old blower filters, making them work harder. Swapping that out takes an hour, max. I did a job last year for a small soccer arena that was paying $1,200 a month in energy; after we swapped the blower, that dropped to $550. They texted me a pic of their next electric bill—worth every penny.
Next up, fabric repairs or replacement, depending on what the audit found. If you’ve got small tears or seam separation, we don’t need to replace the whole membrane—we use heat-welded patches that match the original fabric. That’s better than adhesive patches because they don’t peel over time, especially in sun or rain. But if your fabric is faded, brittle, or has multiple large areas of wear, replacement is the move. We use modern PVC or PVDF fabrics now, which are way more durable and UV-resistant than the old stuff. Old fabrics would fade so bad in 5 years they looked grey; new PVDF stays white for 15+ years and reflects sunlight, which also helps with energy costs (less heat buildup inside the structure). We also offer transparency upgrades—if you use your structure for events or sports, adding translucent panels lets natural light in during the day, so you don’t have to run lights all day. That’s another big energy saver, and it makes the space feel way nicer for people inside. I installed those for a youth baseball complex last spring, and their field crew said they barely turn on the infield lights until 6 PM now. Game changer.
Now, let’s talk about the bigger structural upgrades—like anchors and tension systems. If your structure is in a high-wind zone (coastal areas, plains, mountain passes), old ground anchors might not be enough. We can upgrade to high-tensile steel anchors that are deeper in the ground, or even add additional anchor points around the perimeter if the original design has gaps. We also check and replace tension cables—old cables can stretch or rust over time, which makes the structure sag or lean a little. Tensioning the cables correctly (or replacing them) keeps the structure stable in storms, which is a huge safety thing. A client of mine in Oklahoma had a structure that started leaning after a bad thunderstorm; we replaced the rusted cables and added two extra anchor points, and they’ve been good ever since. We also sometimes add secondary support structures if the original structure is too big—like trusses or internal cables—if you’re using the space for heavy loads or events that need more headroom. Wait, and let’s not forget about doors! Old fabric doors can get stuck, tear, or leak air. Swapping in new, insulated fabric doors with better seals cuts down on air loss when people come and go. We also offer automatic doors now, which are way faster to open/close, so less air escapes. That’s another small upgrade that adds up on energy costs.
What about insulation? If you’re using your structure year-round—like a warehouse, gym, or ice rink—insulating the inner membrane is a must. Old ASS often just has a single layer of fabric, so in winter it’s freezing inside and in summer it’s like an oven. We install a closed-cell foam insulation or insulated fabric liner that attaches to the inner membrane, creating a buffer layer. That keeps inside temps more consistent, so your HVAC or heating system doesn’t have to work as hard. I did an ice rink upgrade last winter—they were spending $8,000 a month to keep the ice frozen. After adding insulation and upgrading the blower, that dropped to $4,500. They were stoked, to say the least. We also make sure the insulation is vapor-barrier treated, so you don’t get condensation buildup on the inner membrane—condensation can lead to mold or fabric rot, so that’s a key point.
Wait, I know what some of you are thinking: “Can I upgrade the tech stuff too?” Like, smart monitoring? Absolutely. Most old ASS don’t have any way to track pressure, energy use, or fabric integrity without being there. We can add smart sensors that connect to your phone or laptop—you get alerts if pressure drops too low, if the blower is running inefficiently, or if a sensor picks up a leak. That’s huge for maintenance—you don’t have to show up every week to check the structure. Last year, a client got an alert at 2 AM that a seam had split a little during a storm; we had a repair team there by morning, and they fixed it before the leak got worse. Saved them thousands in repairs. We can also integrate the system with building management software if you have a bigger operation, so it all ties together.
Now, let’s get real about the timeline and cost, because that’s what everyone cares about. Small upgrades—like replacing a blower, a few patches, and pressure sensor—take 1-2 days, and cost like $1,500-$3,000. That’s nothing. Mid-level upgrades—like fabric replacement for half the structure, adding insulation, and new doors—take 3-5 days, and run about $8,000-$15,000. Big overhauls—full fabric replacement, anchor upgrade, smart system, insulation—take 5-7 days, and are $20,000-$40,000. Compare that to building a new structure, which is usually 2-3x more expensive, and it’s a no-brainer. Also, most upgrades are done without taking the whole structure down—we can keep it partially inflated during the process, so you don’t lose full use of the space. That’s a huge plus for businesses that can’t afford to shut down.
But hold up—before you commit to any upgrades, there are a few things to check first. First, make sure your existing structure is repairable. If it’s in super bad shape—like the foundation is cracked beyond fix, or the fabric has major structural damage that can’t be patched—then a new structure might be better. But 9 times out of 10, upgrading is the move. Second, check local building codes. Some areas have specific rules for ASS upgrades, so we handle all the permits for you—no stress on your end. Third, talk to us about flexible options. We can work with your budget, whether you need to do upgrades in phases (like do the blower first this year, fabric next year) to spread out costs.
Here’s the thing I want you to take away: upgrading an old air-supported structure isn’t about slapping new parts on it—it’s about making it work better, last longer, and save you money. I’ve seen clients go from paying way too much in energy and repairs to having a structure that’s like new, for a fraction of the cost. If you’re thinking about upgrading yours, don’t wait until something breaks. Small issues turn into big ones fast, especially with air-supported structures.
Want to chat through what upgrades make sense for your space? We’re here to help—no hard sales pitches, just real advice based on what we’ve seen work over the years. Send over the details of your structure, or book a time for us to walk it through and do that audit we talked about. We’ll give you a clear plan, timeline, and cost breakdown, no hidden fees. Don’t let your old structure hold you back—upgrade it, and it’ll serve you for another decade or more.
Emergency Solutions References:
- American Society of Civil Engineers. (2020). Guidelines for the Design, Construction, and Maintenance of Air-Supported Structures.
- National Renewable Energy Laboratory. (2019). Energy Efficiency Improvements for Inflatable Membrane Buildings.
- International Code Council. (2021). International Building Code: Chapter 31 – Tensile Structures and Air-Supported Structures.
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