Tear-off vs. recover: the first decision
Commercial replacement starts with a question residential never asks: does the existing assembly come off, or can code and conditions support a recover? The answer lives in a moisture survey and core samples. Trapped moisture means tear-off, no matter how attractive recover pricing looks. We scope both paths honestly and show you the evidence behind the recommendation.
Tear-off versus recover: the first fork in every replacement
Commercial replacement starts with a question residential never asks: does the old roof come off, or does the new one go over it? Code generally allows one recover, meaning a new membrane over the existing assembly, and where the existing roof is dry and the deck sound, recovering skips tear-off labor, disposal tonnage, and days of open-roof exposure. But recovering over trapped moisture buries a failure that resurfaces through the new membrane’s warranty period. The fork is decided by evidence: a moisture survey across the field, core samples that show the assembly’s actual layers and condition, and a deck check. We run that diagnostic before quoting, because the honest number depends on it; any bid delivered without it is a guess wearing a price.
Replacing a roof over an operating business
The building keeps working while the roof comes off, and that constraint shapes commercial replacement more than any material choice. Phasing plans break the roof into sections that open and close within a workday. Staging, crane lifts, and material laydown get mapped around tenant parking and loading. Odor- and noise-sensitive operations (medical, food service, schools) get scheduling that respects them, and every day ends watertight: no section opens that can’t close before weather. Tenants get notice before disruption reaches them; the property manager gets a schedule they can forward. This choreography is a deliverable of the job, and it belongs in the proposal, not in improvisation.
What the specification decides
A commercial replacement is an assembly specification: deck repairs priced per unit up front, insulation thickness driven by the energy code and the owner’s utility math, cover board where hail and traffic argue for it (in DFW, that’s most roofs), membrane by building use (reflective TPO for the general case, PVC over kitchens, mod-bit where rooftop traffic runs heavy), and the attachment engineered to wind uplift at the building’s height and exposure. Every line answers to the building’s actual use and hold horizon. The closeout package carries manufacturer warranty registration, our written workmanship warranty, permits and inspection records, and the drawings the next decade’s maintenance will thank you for.
Budgeting a replacement before you need it
The least expensive commercial replacement is the one scheduled on purpose. Owners who assess early get to time the project: bidding it in the off-season instead of after the failure, phasing it across budget years where the roof plan allows, and choosing the assembly on the merits rather than under a leak’s deadline. The assessment that starts that clock costs little and reads out in years of warning; the alternative is the emergency replacement market, where options narrow and prices don’t. If your roof is in its second decade and undocumented, the capital-planning conversation is the one to have this quarter.