EPDM Roofing
EPDM fits older roofs with many pipes and curbs, and new tapered boards go under it to fix the slope.
EPDM Roofing serviceMaryvale Village, Phoenix
Maryvale Village Commercial Roofing Contractor
Commercial roofing in Maryvale Village for older flat roofs along the I-10 and Loop 101 corridors, where water that sits for days marks a drainage problem.
Drainage
Commercial Roofing That Fixes Maryvale Drainage
Maryvale is a 38-square-mile Phoenix village of post-war planned neighborhoods, with employment corridors along I-10 and Loop 101.
Older flat roofs on its commercial buildings often hold water for days after a storm, which ages the membrane faster and loads the deck. Replacement is the time to build slope back in with tapered insulation, crickets, and new drains.
- Low areas mapped after rain
- Tapered insulation toward each drain
- Added drains and overflow scuppers
- City of Phoenix Planning & Development permits
Maryvale Roof Problems
Signs An Older Flat Roof Is Not Draining
Each of these four signs points to water staying on the roof too long.
Dried rings on the roof
Likely Cause
Low spots where water sat and evaporated, leaving dirt rings behind.
What We Do
Map the low areas, then add tapered insulation or crickets so water moves to a drain.
Water above the drain rim
Likely Cause
A drain set higher than the roof around it after layers were added.
What We Do
Lower the drain or reset its sump with tapered boards so water reaches it.
Water trapped at a parapet
Likely Cause
No scupper on a wall that collects runoff from the whole roof.
What We Do
Cut in an overflow scupper with flashing tied to the membrane.
Pond behind a rooftop unit
Likely Cause
A wide curb damming water on its upslope side.
What We Do
Build a cricket behind the curb to split the flow around it.
Cracked surface where water sat
Likely Cause
Membrane or old asphalt surface aging faster under standing water and daily sun.
What We Do
Replace the damaged area and build slope under it so water no longer collects there.
Repair Or Replace
Maryvale Village Roofs: Repair, Recover, Or Replace
Drainage problems decide much of this choice on older flat roofs. Where water sat for years, the membrane and the insulation under it often both need replacing.
| Roof Factor | Repair Or Recover | Tear-Off And Replace |
|---|---|---|
| Ponding | Small, near a drain | Wide areas across the roof |
| Drain height | Set right for the surface | Above the surrounding roof |
| Membrane | Flexible, with dried rings | Cracked where water sat |
| Insulation | Dry at core cuts | Wet under the low areas |
| Existing layers | Room for one recover layer | Layer limit already reached |
| Roof age | Years of life left | Near the end of its life |
Roof Systems
Roof Systems For Maryvale Village Buildings
Older flat roofs here usually move to one of these two systems, both installed over new tapered insulation that sends water to a drain.
TPO Roofing
TPO over tapered insulation drains a retail or office roof and reflects summer heat off older buildings.
TPO Roofing serviceBefore You Call
Water Still On The Roof Days After Rain?
Photos taken a day or two after a storm show where water sits, which tells us where taper and drains are needed.
What To Have Ready
- Photos after a storm
- Drain and scupper locations
- Leak spots inside
- Roof age and layers
- Building use and hours
Work Sequence
How We Rebuild Drainage On A Flat Roof
Five steps from mapping the water to a roof that drains.
Step 1: Inspect Your Roof
We map ponding rings and low spots, check each drain height, and core the wet-looking areas to count layers and test the insulation.
Step 2: Design The Slope
A taper plan sets board thickness and crickets so every area slopes to a drain or scupper, and checks edge, curb, and scupper heights against the new build-up.
Step 3: Remove Wet Material
Old layers come off where needed, wet boards are thrown out, and the deck is checked before new insulation goes down.
Step 4: Install Taper And Drains
Tapered boards and crickets go in, drains are reset or added, and overflow scuppers are cut where walls trap water.
Step 5: Water Test And Hand Over
A water test confirms flow to each drain, and you get photos and the taper plan for your records, so future units and repairs keep the slope intact.
Nearby Areas
Other Areas Near Maryvale
Neighboring areas west and south of Maryvale, each with its own roof work.
- Litchfield Park
West across Loop 101, where hotel and office roofs are worked during quiet hours.
- Estrella Village
South across I-10, where commerce-park roofs are shared by several tenants.
- Avondale
Southwest along I-10, where solar racks and rooftop units crowd many roofs.
Questions
Maryvale Roofing Questions
How does Phoenix heat affect an older flat roof?
Daily heat ages the membrane, dries out sealant, and makes the roof expand and contract. On an older flat roof, water that ponds speeds that wear, so cracks show up first where water sits and the sheet heats and cools around it.
How much ponding is too much?
Water still standing two days after rain marks an area to fix. Short-lived puddles that dry by the next day are less of a concern, though dirt rings left behind show where to watch after the next storm.
Can slope be added without tearing off the roof?
Sometimes. Tapered insulation can go over a dry existing roof during a recover, if the building is under its code limit on layers. Wet areas still come out first.
Who issues the permit in Maryvale?
Maryvale is an urban village inside the City of Phoenix, so Phoenix Planning & Development handles commercial permits, including reroofs that add tapered insulation, drains, or overflow scuppers.
What is a cricket on a roof?
A small, sloped ridge of tapered insulation built behind a curb or between drains, so water splits around an obstacle and flows to a drain instead of pooling against it.
Why add an overflow scupper?
If the main drain clogs, water rises until it finds a way out. An overflow scupper gives it a planned exit through the wall.
Do older roofs here have several layers?
Some do, from past recovers. A core cut counts the layers, and that decides whether a recover is allowed or a tear-off is needed.
Does fixing drainage add height at the roof edge?
Tapered insulation raises the roof surface in places, so edge metal, scuppers, and curb heights get checked against the new thickness. We plan those details in the taper layout before any boards are ordered.
Next Step
Get Your Maryvale Roof Draining Again
Send photos of where water sits, and we will set up the inspection and taper plan.