On a new building, the roof sits at a pressure point in the schedule. The structure is topped out, the deck is down, and every trade behind you is waiting for dry-in before interior work can start. A roofing subcontractor who shows up late, submits incomplete product data, or leaves penetrations unflashed costs a general contractor days that cannot be bought back. Charlotte Roofers builds its commercial installation work around that reality: complete submittals, a crew sized to the deck area, and a superintendent who answers the phone.
We install roofing on new commercial construction and additions across the Charlotte region, from tilt-wall distribution buildings along the interstate corridors to office, medical, retail, multifamily, school, and church projects. This page explains how we fit into a construction team, how deck type shapes the roof assembly, how systems get selected, and what closeout looks like when the work is done right.
Working inside the construction team: GCs, architects, and owners' reps
A roofing scope on a new building has three audiences with different needs. The general contractor needs a reliable schedule, a safe crew, and a sub who coordinates rather than complains. The architect and roof consultant need the specified system installed to the details in the drawings, with any deviation proposed in writing before it happens rather than discovered afterward. The owner's representative needs confidence that the warranty will register cleanly and the building will not leak on move-in day.
We serve all three by treating communication as part of the work. Our project manager attends the pre-roofing conference, walks the deck with the GC's superintendent before accepting it, and issues a written deck acceptance so responsibility is clear. Requests for information go through the GC's process, and daily reports record weather, crew count, area completed, and any condition that could affect the schedule.
Submittals, schedule, and sequencing with other trades
Submittals are where most roofing delays are born. Product data, shop drawings for tapered insulation and edge metal, fastener pull-out test results where required, sample warranties, and the safety plan all have to be reviewed and approved before material can be released. We prepare a complete submittal package early so review cycles run in parallel with the structure going up, not after it.
Sequencing on a new roof is a negotiation among trades. Rooftop units, exhaust fans, roof drains, and plumbing vents are usually set by others, and the membrane and flashings have to accommodate them without being cut up after the fact. We work from the mechanical and plumbing drawings to locate curbs and penetrations before the deck is roofed, flag conflicts early, and schedule flashing work in step with the trades that set the equipment. On fast-track projects we provide temporary dry-in strategies so interior work can begin before the final flashings are complete.
Steel, concrete, and wood decks: how the substrate shapes the roof
The deck determines how the roof assembly attaches and what it has to protect against. Each common commercial deck type in the Charlotte market brings its own requirements.
Deck condition on the day of roofing matters as much as deck type. Standing water, oil residue, laitance on concrete, loose or missing deck fasteners, and unsupported edges at openings are all reasons to pause and correct before any insulation goes down. We record those conditions in the deck acceptance so corrections happen in the right trade's scope and the schedule stays honest.
- Steel deck: the most common substrate on warehouse, retail, and office projects. Insulation is typically mechanically fastened through the deck flutes or adhered over a fastened base layer, and pull-out testing confirms the deck gauge will hold the design wind uplift.
- Concrete deck: structural concrete, precast plank, or lightweight insulating concrete. Moisture from curing can migrate into the assembly, so vapor retarders and adhesive selection matter, and attachment generally shifts toward adhered systems or concrete-specific anchors.
- Wood deck: plywood or plank, common on smaller buildings, additions, churches, and mixed-use projects. Fastener type and length, deck thickness, and ventilation behind the assembly all have to be checked against the specified system.
Selecting the right system for a new building
On new construction the system is often specified before we arrive, but owners and design teams frequently ask for input on value-engineering options or alternates. The choice among thermoplastic single-ply membranes such as TPO and PVC, EPDM rubber, modified bitumen, and metal depends on the building's use, the roof's slope and drainage, expected rooftop traffic, exposure to kitchen grease or chemical exhaust, reflectivity goals for Charlotte's long cooling season, and the owner's maintenance plan.
We also look at the insulation strategy together with the membrane. Tapered polyisocyanurate to the drains, a cover board for hail and traffic resistance, and the attachment method, whether fastened, adhered, or induction welded, all interact with the deck and the wind design of the building. Where the owner wants a manufacturer system warranty, the assembly must consist of that manufacturer's approved components installed to its requirements, and we confirm those requirements, including applicator eligibility, during submittals rather than at warranty registration.
Weather, dry-in, and the Charlotte construction calendar
Charlotte's weather shapes a new roof's schedule more than most line items. From late spring through early fall, afternoon thunderstorms arrive with little warning, so we size each day's work to what can be sealed by early afternoon and keep tarps and temporary tie-in material on the roof at all times. Insulation boards that get wet are rejected rather than installed, which is why material is staged in short deliveries under cover instead of stockpiled on the deck for weeks.
Winter brings the opposite constraint. Adhesives, primers, and some membranes have minimum application temperatures, and heat-welded seams need adjusted settings in cold or windy conditions. We plan the sequence around those windows, shifting to mechanically fastened base layers or self-adhered products where the specification allows, so the dry-in date holds without compromising the assembly. Daily reports note the conditions each area was installed under, which matters if a question comes up later.
Punch lists, inspections, and closeout
A clean closeout is the final test of a roofing subcontractor. Before we request a punch walk, our own superintendent probes every field and flashing seam, checks terminations and counterflashings, confirms drains and overflows are clear and strainers are set, and photographs the completed details. Where a manufacturer inspection is required for a system warranty, it is scheduled as soon as the roof is complete so the warranty can register without delay.
The closeout package we hand the GC includes the as-built roof plan with all penetrations and drains, the approved submittals, daily reports and photos, inspection and permit records where a permit applied, warranty documents, and a maintenance summary written for the owner's facility team. The goal is that the owner never has to call anyone to find out what is on their roof.
How the work is carried out
- 1
Pre-construction and submittals
We review the drawings and specification, prepare the submittal package, and attend the pre-roofing conference with the GC, architect, and consultant.
- 2
Deck acceptance
Our superintendent walks the deck with the GC's team, documents any condition that needs correction, and issues written acceptance before material is loaded.
- 3
Insulation and membrane installation
Vapor retarder where specified, tapered and flat insulation, cover board, and membrane go on in watertight sections coordinated with the project schedule.
- 4
Flashings, penetrations, and edge metal
Curbs, pipes, drains, walls, and perimeter edges are flashed as the trades set equipment, with conflicts resolved through the GC's process.
- 5
Punch list and closeout
We self-inspect, support the design team's punch walk, schedule the manufacturer inspection where required, and deliver the closeout package.
Signs your building needs this
- A new commercial building or addition is in design and the roofing specification needs input on constructability and alternates.
- The structure is scheduled to top out and the general contractor needs a roofing sub who can hold a dry-in date.
- Rooftop mechanical, plumbing, and electrical penetrations have not yet been coordinated with the roofing scope.
- The owner is requiring a manufacturer system warranty, which means approved components and a documented installation.
- An existing building is getting an addition that must tie into the current roof without creating a leak path at the junction.
- A tenant build-out or change of use adds rooftop equipment, exhaust, or walkway loads that the original roof was not designed for.