Who We Serve
Few buildings concentrate roof risk like a convention or expo center. A single venue can carry ten to thirty acres of membrane over column-free exhibit halls, with a public that arrives in the tens of thousands the moment doors open. We advise the owners, authorities, and asset managers who hold these assets: bond-financed convention authorities, municipal facility departments, and the private operators who run them under management contracts. Our role is owner-side only. We do not install or sell membrane. We tell you, plainly, what condition your roof is in, what it will cost over the next decade, and how to spend that money in the right order.
The Problem With Scale
A convention center roof is not a big version of a warehouse roof. The spans are enormous, often supported by long-span steel trusses or space frames that deflect under snow, wind uplift, and even the live load of catwalks and rigging. That movement telegraphs into the membrane at every penetration, expansion joint, and parapet tie-in. Over a 400,000-square-foot hall there may be a single low point where every roof drain converges, and a single clogged drain or undersized overflow can pond thousands of gallons over occupied space.
Most of these roofs are single-ply: mechanically attached or fully adhered TPO and PVC dominate new construction and re-roofs, while older halls still carry EPDM or built-up roofing (BUR) under decades of patches. PVC in particular shows up over kitchens and food-service zones because it resists animal fats and grease that destroy TPO and EPDM. Because the field is so vast, small defects compound. A few hundred linear feet of failing seam looks trivial on a drawing and represents a six-figure exposure in practice.
What Keeps Owners Up at Night
The fear is never the roof in isolation. It is the roof during an event. A leak over a $2 million trade-show booth, a closed hall on the morning of a sold-out show, or water on a polished concourse floor where 20,000 attendees are walking is a reputational and contractual event, not just a maintenance ticket. Convention authorities answer to bondholders, city councils, and the convention and visitors bureau that books the calendar years in advance. There is no convenient window to take a hall offline.
- Event-day water intrusion over exhibitors, AV rigging, or seated audiences, and the liability that follows
- Drainage and overflow capacity that has never been re-verified against current code or actual ponding behavior
- Rooftop loads from added HVAC, kitchen exhaust, solar arrays, and signage installed across decades with no load tracking
- Warranty status that is unclear, lapsed, or voided by uncoordinated trade work on the roof
- Capital timing: deferring a full re-roof until a major expansion or bond cycle aligns
How We Advise
We start with a documented baseline. For a venue this size that means a full roof survey broken into zones that mirror your halls and concourses, infrared or moisture scanning to find wet insulation hidden under intact-looking membrane, and core cuts to confirm the actual assembly rather than what the original drawings claim. On long-span roofs we pay specific attention to the membrane at structural movement points, because that is where a venue this large fails first.
From that baseline we build a roof asset register and a multi-year capital plan. Each zone gets a condition grade, a remaining-service-life estimate, and a recommended action with budget. This lets a convention authority phase work hall by hall, scheduling re-roofs into the dark weeks between major shows rather than reacting to a leak mid-event. We also model the choice that defines the next twenty years of cost: a full tear-off and replacement, a recover with new cover board and membrane over the existing system, or a fluid-applied coating and restoration that buys five to ten years on a sound substrate.
Drainage, Loads, and Penetrations
On vast low-slope roofs, water management is the discipline that matters most. We verify that primary drains and secondary overflows can clear a design storm, that scuppers are not buried under added insulation, and that tapered insulation actually moves water to the drains it was designed for. We inspect every penetration: the kitchen exhaust curbs, the dozens of mechanical units feeding the halls, the rigging and catwalk supports, and the conduit runs that crews add without flashing properly. Each is a potential leak path, and on a roof this large there are hundreds of them.
When owners want rooftop solar or additional mechanical capacity, we coordinate that decision against remaining membrane life and structural load. Putting a twenty-year solar array on a roof with eight years left is a mistake we routinely intercept. Our job is to sequence the roof and the rooftop equipment so they share one logical lifecycle instead of fighting each other.
Energy, Reflectivity, and Operating Cost
A roof this large is also one of the biggest energy variables in the building. Tens of acres of dark or aged membrane absorb enormous solar heat, driving up the cooling load over halls that must be conditioned for crowds and exhibits. We weigh reflective single-ply and high-reflectance coatings not as a sales pitch but as a measured operating-cost decision, factoring in your climate, utility rates, and the cooling demand of fully occupied exhibit space. Where a roof is already reflective, we make sure it stays clean enough to keep performing, because a fouled white membrane loses much of its value.
We also look at insulation. Many older convention centers carry thin or wet insulation that no longer meets current energy code, and a re-roof is the one moment when adding insulation value is affordable. We help owners decide whether a re-roof should be paired with an insulation upgrade and whether available energy incentives or rebates change the math on timing. These decisions belong in the capital plan, not in a panicked response to a failure.
Warranty and Contractor Oversight
A venue this valuable should never carry an unmanaged warranty. We confirm what coverage actually exists, whether it is a manufacturer's system warranty or a contractor's labor warranty, and what activities void it. We then write the maintenance and access rules that keep it intact, because uncoordinated trade work, foot traffic during show setup, and undocumented penetrations are the most common reasons a warranty quietly lapses.
When it is time to re-roof or restore, we represent the owner through the entire procurement. We write performance specifications, run a competitive bid, vet contractor qualifications and manufacturer certifications, and provide independent observation during installation so the system you paid for is the system you receive. On a roof measured in acres, that oversight is the difference between a thirty-year asset and a warranty claim five years in. We stay accountable to you, never to the manufacturer or the installing crew.