Scope01
TPO roof replacement
Single-ply replacement scopes that account for substrate condition, insulation strategy, attachment, seams, flashings, penetrations, roof edges, drainage, and the requested warranty path.
Commercial priority · Greater St. Louis
Commercial Roofing Contractor in St. Louis
Plan a low-slope or steep-slope roof replacement around the building, rooftop equipment, drainage, access, tenants, and ownership goals—not just a square-foot price.
Occupied-property planning
Written scope + assumptions
Punch + photo closeout
Commercial first
Buildings, facilities, multifamily properties, and substantial component scopes are prioritized.
Bid-ready clarity
Available documents, interfaces, assumptions, access, and closeout needs are organized before award.
Qualified residential too
Residential projects are considered when they are substantial, planned, and within this service.
Commercial roofing capabilities
Component work with the interfaces included.
These are the substantial, planned scopes Vulcan is built to review. Final inclusions depend on the property, available information, field conditions, jurisdiction, and written proposal.
Scope02
EPDM roof replacement
EPDM assemblies evaluated around membrane condition, insulation, attachment, perimeter details, penetrations, traffic areas, drainage, and compatibility with the existing building.
Scope03
Modified-bitumen systems
Multi-ply low-slope assemblies scoped with installation method, substrate preparation, flashing transitions, surfacing, staging, and occupied-property constraints defined before award.
Scope04
Commercial metal roofing
Metal replacement and substantial retrofit scopes organized around panel profile, fastening approach, perimeter conditions, transitions, penetrations, corrosion exposure, and water management.
Scope05
Steep-slope commercial roofs
Shingle and other steep-slope sections planned as complete systems, including tear-off assumptions, decking allowances, underlayment, ventilation, flashing, edges, and cleanup.
Scope06
Rooftop interface coordination
Curbs, units, vents, piping, electrical penetrations, drains, scuppers, parapets, and wall transitions are identified early so roofing does not become disconnected from HVAC or exterior work.
High-intent project review
Go deeper on the exact project type.
These focused pages organize the decisions, inputs, interfaces, and proposal details for substantial commercial roofing projects that need more detail than a general capability list.
Before comparing bids
Define the decision—not only the price.
Commercial proposals become easier to compare when the owner first identifies the operating outcome, known conditions, interfaces, and acceptable assumptions.
Recover or remove?
The existing assembly, moisture, deck condition, code constraints, added weight, and long-term ownership plan determine whether a recover approach should even be considered.
Which assembly fits the building?
System selection should reflect roof geometry, traffic, penetrations, energy goals, drainage, installation constraints, desired service life, and the manufacturer requirements attached to a warranty.
How will operations stay protected?
Access, noise, odor, debris, material staging, weather exposure, tenant communication, and daily dry-in expectations belong in the plan before work starts.
What happens at the edges?
Parapets, copings, gutters, downspouts, wall transitions, curbs, and penetrations often determine performance. A low number that leaves those details vague is not a complete comparison.
Information that improves the bid
Bring the property, constraints, and target outcome.
Complete information reduces contingency, exposes trade interfaces, and makes the schedule more credible. Send what is available; missing items can be identified during review.
- Property address, building use, roof access, and operating-hour restrictions
- Available roof plans, measurements, core data, condition reports, or prior repair history
- Known leak areas, drainage concerns, penetrations, rooftop traffic, and equipment changes
- Existing assembly information and any suspected wet insulation or deck deterioration
- Target system, insulation or energy goals, warranty expectations, bid date, and completion window
- Tenant notices, safety requirements, staging limits, crane access, and closeout requirements
A clearer commercial proposal
Know what the number includes.
The final proposal—not this page—controls the work. Before award, verify the included systems, limits, responsible trade parties, approvals, assumptions, schedule, and turnover requirements.
Where a license, permit, design professional, utility approval, test, or inspection is required, the written scope should identify the responsible party and what is included for the actual jurisdiction.
01
Measured roof areas and the assembly being priced
02
Tear-off, recover, substrate, and deck-repair assumptions
03
Insulation, membrane, attachment, flashing, edge, and drainage details
04
Access, staging, protection, weather, and daily cleanup plan
05
Allowances, exclusions, alternates, schedule, and written change process
06
Inspection, punch, photo, product-data, and warranty closeout responsibilities
One accountable process
From project information to useful closeout.
01
Send the building information
Share the address, property use, requested outcome, available documents, timing, budget, and operational constraints.
02
Verify conditions and fit
The team reviews what is known, identifies missing information, and determines what must be field-verified before responsible pricing.
03
Compare a written scope
Inclusions, assumptions, allowances, exclusions, schedule logic, responsible parties, and change handling are put in writing.
04
Coordinate through closeout
Approved work moves through access, construction, communication, punch, photos, and useful turnover records with one project lead.
Project fit
Commercial priority. Residential considered.
Commercial + multifamily
Vulcan prioritizes planned commercial and multifamily roof replacements where access, phasing, drainage, rooftop interfaces, and closeout need one coordinated scope.
Qualified residential
Qualified residential full replacements and substantial roofing projects are also considered. Small patch calls and emergency leak dispatch are not the focus.
See the combined roofing pageCommercial roofing questions
Scope questions, answered plainly.
What commercial roofing systems do you scope in St. Louis?+
Vulcan evaluates TPO, EPDM, modified-bitumen, metal, and steep-slope replacement scopes. The appropriate system depends on the existing assembly, roof use, drainage, penetrations, installation constraints, ownership goals, and required approvals.
Can you coordinate rooftop HVAC work with a roof replacement?+
Yes. When both scopes are part of the project, curbs, lifting, penetrations, flashing, power, controls, drainage, and sequencing can be planned together instead of leaving the interfaces to separate schedules.
Will a proposal include permits, inspections, and warranty responsibilities?+
Those responsibilities should be identified in the written scope for the project jurisdiction and selected system. Vulcan does not assume that the same requirements apply to every municipality or every roof assembly.
Do you offer emergency patches or one-leak service calls?+
Vulcan is focused on planned replacements and substantial roofing scopes. Share the condition and requested outcome; the team will confirm whether the project fits before scheduling a site review.
Do you consider residential roofing?+
Yes. Commercial work is the priority, but qualified residential full replacements and substantial planned roofing projects in Greater St. Louis are considered.
Other commercial systems
Keep connected scopes connected.
Greater St. Louis · projects reviewed for fit
Start with the building and the outcome.
Send the address, available documents, current condition, target date, and what must stay operational. Vulcan will review the commercial roofing scope and confirm next steps.