Close-up of a paintbrush applying white coating to a granulated roof

Commercial roofing in Lewisville, TX

Commercial roofing means flat and low-slope systems, planned around the tenants underneath and the budget year.

Commercial estimate

The address and the roof age are enough for a roofer to price it.

Where it starts

Commercial roofing in Lewisville, TX is decided by the deck

Commercial roofing in Lewisville, TX turns on what is underneath the membrane. Square footage matters less than most people expect. Steel, concrete and wood decks each rule some systems in and others out, and the insulation between deck and membrane decides whether a roof can be recovered or has to come off entirely.

The first useful question about a commercial roof is therefore rarely how big it is. A moisture survey and a core sample answer more than a walk-around does.

The deck: what the building is built on, and what it will carry
The insulation: dry, and the roof can often be recovered; wet, and it comes off
The tenants: what disruption the building can absorb while work happens

Call (469) 240-5301 Get my free estimate

Close-up of a metal parapet corner with folded flashing and coping trim

Systems

Membrane, coating or tear-off, matched to the building

Three routes, and the honest one depends on what a moisture survey finds.

01 · Restoration

Coat

The membrane is sound and the insulation is dry. A coating adds years at the lowest cost and the least disruption.

02 · Overlay

Recover

The existing system is tired but the insulation is dry. A new membrane goes over the old one, avoiding a full tear-off.

03 · Replacement

Tear-off

The insulation is wet, or the assembly has failed. Everything comes off to the deck and the roof is rebuilt.

04 · Phased

Phased tear-off

The same work, split across sections or budget years. The building stays open and the spend is spread.

Which route applies is a finding, not a preference. A roofer who recommends a tear-off should be able to show you the wet insulation.

Scope

What sits between the deck and the weather

The assembly, from the structure upward. Each layer is a line on a proper commercial estimate. The three routes below are covered in depth on TPO, flat roof replacement and coatings.

01The deck: Steel, concrete or wood. Its condition and capacity constrain everything above it.
02Vapor retarder: Used where the building's interior humidity requires it, and omitted where it does not.
03Insulation: Thickness set by the energy code in force and by what the building needs. This is the layer moisture ruins.
04Cover board: The layer that protects the insulation from foot traffic and gives the membrane something solid to bond to.
05Membrane: TPO, modified bitumen or another single-ply, chosen to suit the building.
06Flashings and terminations: Every parapet, curb, drain and penetration. This is where low-slope roofs fail.

Every layer here is work a commercial roofer performs, and the system warranty terms come from the roofer and the manufacturer.

How it runs

Work sequenced around the tenants underneath it

The sequence a commercial job follows. Dates are the roofer's and the weather's. Smaller low-slope sections are covered on flat roof repair, and a build from scratch on new construction.

Step one

Survey and core sample

A moisture survey finds wet insulation, and a core sample shows exactly what the assembly is. This is what separates a real estimate from a guess.

Step two

Sections and phasing agreed

Which sections, in what order, and around which tenant hours. Staging and crane or hoist access get settled here rather than on the day.

Step three

Section by section, dried in daily

No section is left open overnight. That constraint is what makes phasing slower and why it is worth insisting on.

Step four

Terminations, then a walk

Flashings, curbs and drains finished, then a walk-through with whoever signs the roof off.

Good to know

Warranty terms, tenant access, and how a bid gets compared

The questions that come up on a commercial building, answered the way a property manager would want them. Warranty terms, tenant access, and how bids get compared.

How do I compare two commercial bids?

By what is in them, not by the bottom line. Check the insulation thickness, whether a cover board is included, how many drains and curbs are being reflashed, and what the deck repair allowance is. Two bids that differ by a third often differ by a cover board and six curbs.

What warranty comes with a commercial roof?

Two, and neither belongs to this site. The manufacturer can issue a system warranty where an installer it has certified uses a full specified assembly, and the roofer warrants the workmanship. Ask which system warranty is being quoted, because the term and the coverage vary considerably.

Can the building stay open during the work?

Usually yes, which is what phasing is for. Noise over occupied suites, roof access routes and staging areas are the practical constraints, and they belong in the bid.

How disruptive is a tear-off over tenants?

Noisier than a recover and considerably noisier than a coating, which is one real argument for finding out whether the insulation is actually wet before committing to one.

Do you handle small commercial buildings?

Yes, our roofers take them. A small low-slope roof is still a low-slope roof, and it fails at seams and terminations the same way a large one does. The system choice and the inspection are the same work at a smaller scale.

Craftsman style home with gray shingle roof and double garage

For your building

Send the address and the roof's age, if you know it

Those two facts let a commercial roofer say something useful before anyone visits. If the age is unknown, the building records or a core sample will settle it, and that is part of the survey.

Prefer to talk? Call now: (469) 240-5301

The request goes to a person and not into an automated system.

Commercial inquiry

Address, age, and what is going wrong give a roofer enough to size the job.