Low sun over a broad white commercial roof with mechanical units

Commercial Roofing in Grapevine, TX

Flat and low-slope roofing for buildings around Grapevine. A commercial roof survey covers the membrane, the drains and what is trapped under the insulation, and the scope comes back itemized so it can sit beside any other bid.

A survey first, then a scope you can compare.Free
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Low-slope roofers
Exclusions named in the bid
The survey costs nothing
Staged around the building
What a low-slope roof is

Commercial roofing in Grapevine, TX

Commercial roofing means low-slope work, and low-slope roofs do not use shingles. The deck is the structural surface underneath. Insulation sits on top of it. Over that goes either a single-ply membrane, one flexible sheet seamed into a watertight skin, or a built-up asphalt system laid in layers.

Which one belongs on a building depends on how it drains, how much equipment punches through the roof, and whether anyone walks it to service that equipment. TPO membrane, flat roof repair and restoration coatings each have a page of their own.

Rooftop HVAC equipment on a white commercial roof at sunset

What commercial roofing covers in Grapevine

Two bids stop matching at the line items rather than at the bottom line, and the line items are where the money actually sits.

Anything left off a bid tends to come back later as a change order, at a worse moment and at a worse price.

Survey and moisture check

A commercial roofer walks the roof, photographs it, and probes the insulation for trapped water. That is what settles tear-off against recover.

Tear-off or recover

A recover lays a new membrane over the existing one. Code stops allowing it once the roof carries two layers or the insulation is wet.

Deck repair and fastening

The roofer swaps out soft or corroded decking while the roof is open.

Insulation and slope

The roofer builds up tapered insulation so water runs to the drains instead of standing in the low spots.

Drains and overflow

The roofer clears the primary drains and checks the backup route, whether that is a second drain or a scupper through the edge wall.

Flashings and curbs

A curb is the raised frame a rooftop unit sits on, and the roofer seals every one of them, along with every pipe and vent, back into the membrane.

How to tell a commercial roof is failing

All of these are visible from the roof, and none of them settles anything by itself.

  • Seams lifting, curling or splitting along the joins between membrane sheets.
  • Water still standing days after rain.
  • The membrane pulling back from the parapet, or the metal along that wall working loose.
  • Soft or spongy footing, which is usually water sitting inside the insulation rather than on top of it.
  • Blisters in the surface where air or moisture has been trapped under the sheet.
  • Debris ringing the drains, or an overflow that has never once run.

Any one of them is worth a repair conversation before it becomes a capital one.

How the job runs on an occupied building

A survey comes first and the paperwork comes last. In between sit the price and the work, and the roofer sequences both around how the building runs.

carry

Survey the roof

A roofer walks the roof, photographs seams and drains, and probes for wet insulation.

The number, line by line

What the job covers, what it excludes, and what a soft deck changes.

Work around the building

Staging is what keeps an occupied building working, and a roofer worth hiring will walk that sequence with the owner before anything opens.

Close out

Final photographs, the manufacturer paperwork the system warranty needs, and the workmanship terms.

What you get in writing

A building owner has to defend the decision months later, when a lender or a board asks what the money bought.

An estimate with its exclusions named

The bid states what the job covers and, just as plainly, what it does not. An approved number is only worth what the estimate behind it says, which is why the exclusions matter as much as the total.

Every estimateExclusions named up front

The roof as it was found

The roofer photographs and dates seams, curbs, drains and any moisture cores. The condition being paid to fix sits on the record instead of in somebody's memory.

Every surveyDated photographs

Both warranties, named separately

Manufacturer system coverage and contractor workmanship coverage are two promises from two parties. The paperwork should say plainly which one carries what.

Every systemManufacturer and contractor
How the roofer builds the number

What drives a commercial roofing number in Grapevine

Area is the starting point and condition moves it from there. A tear-off costs more than a recover, and the code sometimes leaves no choice. Wet insulation has to come out, and nobody knows how much of it is wet until somebody probes it. Then there is your building itself. A roof a crane can reach from a side street prices differently from one loaded through a working parking deck, and work sequenced around an occupied building takes longer than the same work on an empty shell.

Ask for a line-by-line estimate
  • How much roof there is, and how much of it is actually being touched
  • Tear-off down to the deck against a recover over what is there
  • How much of the insulation is wet, which only probing settles
  • How much rooftop equipment there is to work around
  • Access and staging, meaning where material lands and what stays open

A published range would tell you nothing about your own building. The first number worth acting on comes after somebody has been on the roof and probed what is under it.

Questions Grapevine building owners ask

Owners ask who covers the roof before they ask who walks on it. Both answers change what a bid says.

Two parties do, for two different failures. The membrane manufacturer warrants the materials and the system, and its stronger programs generally require an approved installer and an inspection before coverage is issued. The roofing contractor warrants the installation, on its own terms and for its own length. Neither of those belongs to Grapevine Roofworks, so ask which program the roof qualifies for and what the workmanship terms say. The roof warranties page sets out how the two fit together.
Sometimes, and what sits underneath decides it rather than what it saves. A recover puts a new membrane over the existing one, and the code does not allow it once the roof is water-soaked or deteriorated, or once it already carries two layers of covering. At that point the honest job is a tear-off to the deck. Where what is underneath is dry and sound, a restoration coating buys years without replacing anything.
Usually not, because the work is staged. Sections are opened only as far as they can be closed back weather-tight, which is what keeps the space below dry. What tenants notice is the staging: the dumpster and the hoist, parking bays and doors out of service, and noise travelling straight down into whichever suite sits under the active section. Kitchens, clinics and anything with a dust requirement are worth sequencing separately, and that sequence is worth agreeing before anything opens.
Line them up item by item before looking at either total. Check that both assume the same thing about tear-off against recover, count the same curbs and rooftop units, specify the same insulation and the same drainage work, and say the same thing about a deck that turns out soft once it is open. A bid that is dramatically cheaper is usually cheaper because something on that list is missing, and the exclusions are where it will be hiding.
Insurance. No material or workmanship warranty covers weather, because warranties cover defects and a storm is a claim. The complication on a low-slope roof is that the damage hides. Bruised membrane and split seams do not announce themselves the way a stripped shingle field does, so a building can carry storm damage for a season with nobody noticing from the lot. A local roofer can document what is up there and be on the roof when the adjuster is, which is not the same thing as filing for you. Roof insurance claims in Grapevine covers where that line sits.
Start with the roof

Get a commercial roof looked at

Send the address, roughly how much roof you have, and what the building is doing. A commercial roofer surveys it and comes back with a scope, and flat roof repair is where most of these begin.

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