TPO, EPDM, Industrial, Metal
Sierra Vista commercial roofing services for low-slope and metal roofs: new installs, tear-off and replacement, recovers where the roof allows, and repairs on all four systems.
Pick the card that sounds like your building. Each one lists where the system earns its place and what we check before recommending it.
A white single-ply sheet with hot-air welded seams, laid over new insulation on flat and low-slope roofs that carry rooftop cooling units.
Best For
Check First
Synthetic rubber sheet with taped or adhered laps. It flexes through cold nights and patches cleanly, which suits older buildings already wearing rubber.
Best For
Check First
Membrane or metal roofs built for exhaust stacks, heavy units, and daily service traffic, with reinforced flashings and walkway pads around the equipment.
Best For
Check First
Standing-seam panels for new metal roofs, plus fastener, lap, and retrofit work on older screwed steel buildings across Cochise County.
Best For
Check First
Five questions about the roof narrow the choice faster than comparing product names.
| Question | TPO | EPDM | Industrial | Metal |
|---|---|---|---|---|
| How steep is the roof? | Flat to low slope | Flat to low slope | Either, by building | Sloped, or low slope with standing seam |
| How are seams closed? | Hot-air welded | Taped or adhered | Reinforced at every curb | Seamed or screwed laps |
| How much foot traffic? | Light, with pads at units | Light to moderate | Heavy, with walkway paths | Light; walk the seams |
| Hail and sun at altitude? | 60 or 80 mil sheet | White-topped sheet over cooled space | Thicker sheet near equipment | Reflective factory finish |
| Recover or tear off? | Recover over dry roofs | Tie into dry EPDM | Tear off wet sections | Retrofit framing over old roofs |
Every row assumes an inspection first. Wet insulation or a damaged deck changes the answer for any system.
Send a photo from the roof hatch or a note about where it leaks. We can usually tell membrane from metal at a glance and plan the inspection from there.
What To Have Ready
The system changes, but the order of work stays the same on every commercial roof we take on.
Field, laps, flashings, edges, and drains get a close look, and soft areas get a core cut. That tells us what the roof is made of and how wet it is.
Slope, use, rooftop equipment, and how long you plan to hold the property point to TPO, EPDM, a reinforced industrial build-up, or metal.
Ladder points, crane spots, and material drop zones are set away from entrances and loading doors so the building keeps working below the roof.
Debris comes out of drains and scuppers, wet insulation is cut out, and damaged deck is repaired before any new membrane or panel goes down.
Finished seams are probed or checked by hand, and every flashing gets photographed. Those photos become your record for future maintenance and budgets.
Slope, use, and how long you plan to keep the building decide it. Flat-roofed medical and professional offices usually fit TPO, older retail with an existing rubber roof fits EPDM, and warehouses or pre-engineered steel fit standing-seam metal.
Shops with heavy rooftop equipment do best with reinforced TPO or EPDM plus walkways. Tombstone's historic district adds its own review. An on-roof inspection confirms the choice.
With good installation and routine care, TPO often runs about 20 to 30 years, EPDM roughly 25 to 30, and commercial metal 40 years or more. Hail, thin membrane, ponding, unprotected black rubber, loose fasteners, and rust at laps shorten those numbers. Manufacturer terms and site conditions set what any one roof delivers.
Both, and repair comes first whenever the roof supports it. Split seams, failed flashings at curbs, loose edge metal, punctures, and backed-out fasteners are all repair work. Replacement makes sense when leaks keep moving around the roof or a core cut finds wet insulation across large areas.
Yes, and plenty of buildings here do. A sloped metal warehouse with a flat office section in front is a common pairing. The key detail is the transition where the two roofs meet, which needs its own flashing and gets extra attention at every inspection.
Most stay in place on their curbs. New membrane is flashed up each curb, and units are shut down only for the hour their flashing needs. When a curb is too short for proper flashing height, we plan with your mechanical contractor to raise it before the new roof goes on.
Often, yes. Large roofs can be split at expansion joints or curb lines and replaced over several stages, each sealed before the crew leaves. Phasing keeps more of the building dry and in use, and it lets you spread the work across budget periods when the roof condition allows.
Tell us the building type and where it leaks. We will look at the roof and recommend the system that fits it.
Leave a name and number and we'll call about your building's roof. Or call now: (623) 310-0174