ServicesFlat Roofing
Flat Roofing in Casa Grande
A leak on a flat roof rarely shows up right under the spot where water enters. We trace it back to the real cause, whether that's a split seam, a clogged scupper or a tired parapet cap, and fix that so you aren't patching the same ceiling twice.
Flat and low-slope roofs, done right the first time
A flat roof can't count on gravity the way a pitched roof can. It depends on an unbroken membrane, a gentle fall toward the drains and tight flashing at every wall, vent and equipment curb. If any one of those gives out, water may creep several feet beneath the surface before it drips into your home.
So the first part of any flat roofing job is locating the true entry point. We cover the entire surface on foot, check drains and scuppers, study the parapet walls and the area around the cooler or AC stand, and photograph each problem spot. Afterward you get a straight answer on whether a repair will last or the membrane is simply worn out.
As an Arizona KB-2 licensed contractor, we handle flat roofs in Casa Grande and nearby towns like Maricopa, Coolidge and Arizona City. If your roof is spray foam, the Foam Roofing page goes deeper on that system.
Flat roofing work we handle
Tracing the leak
We start at the stain on your ceiling and work back up to where water gets through on top. Seams, penetrations and wall flashing are all checked before any repair begins.
Membrane repair
Split seams, blisters and punctures in modified bitumen, TPO or built-up roofing are cut out and patched with matching material. We don't just cover them over with a layer of mastic.
Full membrane replacement
When the whole surface has gone cracked and brittle, we strip it down to the deck, swap out any soft sheathing and install a new system. The Roof Replacement page explains how that works for every roof type.
Drainage corrections
Low spots that stay wet after a storm are usually the first places a flat roof breaks down. We clear and reseal scuppers and drains, and where it's needed we add tapered material so water runs off.
Parapet and flashing work
We reseal or rebuild parapet caps, wall terminations and the flashing around vents and equipment curbs. Those joints let in more water than the open middle of the roof ever does.
Reflective coatings
A reflective coating on a membrane that's still healthy can reduce heat buildup and slow sun damage. We only bring it up when the roof below is worth protecting.
Signs your flat roof needs attention
- Water that sits for days
- Puddles still hanging around long after the rain stops usually mean sagging decking or clogged drains. Standing water wears down the membrane and works into any weak seam.
- Ceiling stains after monsoon storms
- A brown ring that spreads after every heavy rain tells you water is getting in. The opening is often somewhere other than straight above the stain.
- Bubbles under the surface
- Soft, raised spots tell us air or moisture has gotten trapped beneath the membrane. Over time they split and let water through.
- Cracking and alligatoring
- When the surface looks like a dry riverbed, sun and heat have taken its flexibility. Small patches rarely hold on a roof in that condition.
- Gaps around the cooler or AC stand
- Equipment shakes as it runs, and anyone servicing it steps around the base. The sealant there loosens, and water follows the curb straight down.
How a flat roofing job goes
- 1
A conversation by phone
You tell us what you've noticed, where the stains are and how old the roof is. We set a time to come out and look.
- 2
Finding the cause
We go over the full roof surface and the drainage, take photos and match what we see on top to what's showing inside your home.
- 3
A clear recommendation
We show you the photos and explain what failed and why. You get a written estimate with each item listed, and an honest answer on repair versus replacement.
- 4
The work day
We protect your yard and walkways, keep debris contained and work in a set order so your home is never left open. Hot-weather jobs start early to keep materials workable.
- 5
Cleanup and walkthrough
We clear the roof and the ground, sweep for nails and walk you through what was done. Our labor is backed by a 10-year labor warranty.
What affects the cost of flat roofing
No two flat roofs are alike, so the price comes from what's actually on yours. Your written estimate breaks the job into line items, and you'll know what each one covers before work begins.
- Repair or replacement
- Fixing a handful of failed seams costs far less than a whole new membrane. Pinning down the real cause first keeps you from paying for work the roof doesn't need.
- Condition of the deck
- A leak that has gone on for a while can soften the sheathing below. Rotted sections must be replaced before any new roofing is laid.
- Roof size and drainage fixes
- Square footage plays a part, and so does whether low spots need tapered insulation to push water toward the scuppers.
- Membrane choice
- Modified bitumen, TPO and coatings carry different material and labor costs. We'll explain how each one stands up to sun and heat on your roof.
- Parapets and equipment
- Tall parapet walls and several rooftop units mean more flashing details to build, which adds labor and material.
Flat roofing questions
- Can you just patch the leak?
- Often, yes, if the rest of the membrane is still in good shape. We'll tell you when a patch is the right call and when it would only shift the leak a few feet over. The photos we take let you see the difference yourself.
- Which flat roof material works best in this heat?
- That depends on your roof's slope, its drainage and what's on it now. TPO reflects a lot of sun, modified bitumen stands up well to foot traffic around equipment, and foam is another option covered on our Foam Roofing page. We'll go over the tradeoffs for your home.
- Why does my roof leak in a different spot than the stain?
- On a flat roof, water can travel along the deck or under the membrane before it drips through. That's why we trace leaks from the roof down rather than cutting into the area right above the stain.
- Do you have to move my cooler or AC unit?
- Sometimes the unit has to be lifted so the membrane and curb flashing can be done properly. We'll tell you ahead of time and plan the work so your cooling is off for as short a stretch as possible.
- What warranty comes with flat roofing work?
- Our labor on flat roof repairs and replacements is backed by a 10-year labor warranty. We'll go over what it covers when we walk through the finished job with you.
Let's get to the bottom of your flat roof
Tell us about the stains, the puddles or how old the roof is. We'll come out, walk you through the photos and lay out your choices so you can decide with the facts in front of you.