EPDM Around Equipment
Rubber flexes around odd shapes and tight clusters of pipes, and new flashing bonds well to an older EPDM field sheet.
EPDM roofing detailsOak Creek Commercial Roofing Contractor
Rooftop units, vents, and pipe boots cause most Village of Oak Creek roof leaks. As an Oak Creek commercial roofing contractor, we flash them and repair the roof around them.
Single-Story Commercial Roof
Exhaust Fan Curb
Walkway Pad RepairCurbs And Penetrations Carry Most Of The Risk
Single-story commercial roofs in the Village of Oak Creek tend to carry a lot of equipment: package units, exhaust fans, plumbing vents, gas lines on pitch pans, and conduit to rooftop disconnects. Every one of those breaks the membrane, and each break needs its own flashing.
Before we price anything, we also confirm the parcel. Addresses near Oak Creek Canyon can fall outside the village, which changes who issues the permit.
- HVAC curbs checked at all four corners and along the counterflashing
- Pipe boots checked for split collars and loose clamps
- Pitch pans refilled or swapped for prefabricated pipe flashings
Leaks Around Rooftop Equipment
Each piece of equipment fails in its own way. These five turn up on roof after roof around the village.
Drip under a package unit
Likely CauseSealant at the curb corners dried out, or counterflashing pulled loose during a service call.
What We DoWe strip the old corners, reflash the curb with matching membrane, and refasten the counterflashing.
Stain around a plumbing vent
Likely CauseA rubber pipe boot cracked by sun, with its top clamp slipped down the pipe.
What We DoThe boot gets replaced and clamped, and the membrane around its base is checked for splits.
Leak near a gas line
Likely CausePitch pan filler that shrank away from the pipe and left a gap at the edge.
What We DoWe refill the pan or swap it for a prefabricated flashing that holds without refilling.
Water at an exhaust fan curb
Likely CauseFan curbs set too low, so ponding water rises over the top of the flashing.
What We DoWe raise the curb where needed and flash it with new membrane.
Punctures beside equipment
Likely CauseService techs kneeling and dropping screws on bare membrane around the units.
What We DoWalkway pads go down along the service path and around each unit.
Why Oak Creek Owners Fix Roofs Early
Equipment leaks start small and spread under the membrane. Here is the roof before and after the curb work.
Before The Work
- Sealant cracked at the corners of every HVAC curb
- Pipe boots split and clamps slipped down the vent
- Pitch pans with filler shrunk away from the pipe
- Screws and cut marks around units from service calls
- Water stains following conduit runs across the ceiling
After The Work
- Curbs reflashed with membrane that matches the field sheet
- New boots and clamps on every plumbing vent
- Prefabricated flashings in place of old pitch pans
- Walkway pads along each service route
- Equipment locations marked on a roof plan for future service
Oak Creek Roof System Options
Equipment-heavy roofs here are usually single-ply. These two systems handle penetrations best.
TPO With Welded Curb Flashing
Prefabricated TPO corners and pipe boots are welded to the field sheet, which leaves no glued joints at the spots where most leaks begin.
TPO roofing detailsWater Showing Up Under A Rooftop Unit?
Call with the unit's location and when the drip appears, during rain or while the unit runs. That tells us whether to look at the curb or the condensate line.
Call UsHow Equipment Leaks Get Fixed
We work unit by unit, starting with a full inspection and ending with every curb rechecked.
Inspect Your Roof
We photograph each unit, curb, vent, and pan, then take moisture readings in a ring around every penetration to find water that has spread under the sheet.
Confirm The Parcel
Village of Oak Creek addresses go through Yavapai County, but properties near Oak Creek Canyon can sit outside the village line, so we look up the parcel before any roof work is priced.
Plan Unit Shutdowns
HVAC units come off one at a time, arranged ahead with whoever runs the building, so only one zone loses cooling or heat while its curb is flashed.
Flash Each Penetration
Old sealant and patches come off down to clean membrane, then new curb corners, boots, and pan flashings are welded or taped in.
Clear Drains And Recheck
Debris from around the equipment ends up in the scuppers, so drains are cleared and every curb is checked again before we leave the roof.
Neighboring Areas
Oak Creek sits between Sedona and the I-17 corridor. These nearby towns are covered too.
Sedona
Sedona roofs must avoid white and reflective surfaces, so membrane and metal colors get chosen early.
Rimrock
Rimrock jobs focus on roof edges, coping, and gutters that catch the full force of storm gusts.
Cornville
Low corners on Cornville roofs collect water that freezes overnight and opens cracks.
Verde Village
Strip-center roofs in Verde Village need leaks traced across several tenant suites.
Oak Creek Roof Questions
What building owners in the Village of Oak Creek ask about equipment, flashing, and permits.
How often should a commercial roof be inspected in the Verde Valley?
Twice a year works for most roofs: once in spring before monsoon season and again in fall once it ends. Add a visit after severe wind, hail, or heavy snow.
On an equipment-heavy roof in the Village of Oak Creek, each visit should cover every curb, pipe boot, and pitch pan, plus clearing leaves and dust from drains and scuppers.
Is my building in the Village of Oak Creek or in Sedona?
Check the parcel, since the mailing address alone can mislead. The village is unincorporated Yavapai County, while Sedona is a city with its own building department and stricter roof color rules. Properties near Oak Creek Canyon sometimes fall outside the village, and we confirm which side of the line yours sits on.
Why do pitch pans keep leaking?
Pitch pans hold a pourable sealer around a pipe, and that sealer shrinks and cracks as it ages in the sun. Once a gap opens at the edge, water runs straight down the pipe. Refilling buys time, and a prefabricated pipe flashing welded or taped to the membrane ends the cycle.
Can a rooftop unit be moved during a reroof?
Yes, with your HVAC service company handling the disconnect and reconnect. Lifting the unit lets us rebuild or raise the curb, replace wet insulation underneath, and flash the new curb properly. It is also the best time to fix a curb that sits too low for the roof around it.
What causes leaks that only appear while the AC runs?
Condensate is the usual answer. A clogged or cracked condensate line drips onto the roof, and when that water lands on an open lap or a curb corner, it finds its way inside on dry days. We trace the line, reroute it to a drain or splash pad, and seal the spot it was hitting.
Do walkway pads really help?
They do on roofs that get regular service visits. Techs carrying tools and parts wear paths in the membrane and drop screws that get stepped into the sheet. Pads along the path from the hatch to each unit take that wear instead and are simple to replace.
How do new rooftop additions affect an older roof?
Every new unit, vent, or conduit run cuts another hole in the membrane. When the installer seals it with mastic alone, the flashing fails within a few seasons. We flash new penetrations to match the roof system and add them to the roof plan so the next inspection checks them.
Should old unused curbs be removed?
Abandoned curbs and vent stubs are leak points that serve no purpose. When the equipment is gone, we cut the curb out, fill the opening with deck and insulation, and patch the membrane over it, which leaves fewer flashings to maintain.
Have An Oak Creek Commercial Roofing Contractor Check Your Curbs
Tell us how many rooftop units you have and where the stains are. We start at the curbs closest to the water.