As a Fort Mitchell commercial roofing contractor, we replace membrane roofs on office and commercial buildings and rebuild the curbs under their rooftop units.
Fort Mitchell has no local HVAC inspector on the state's Kenton County contact list, so rooftop unit work during a replacement goes to the state HVAC inspector. As a Fort Mitchell commercial roofing contractor, we plan both sides: PDS for the roof permit and the state for the units.
Booking the mechanical contractor and the state inspection early keeps units from sitting off their curbs overnight.
On roofs with several units, the leaks and the wear gather around the equipment.
Every inch of new insulation raises the roof surface, and an old curb that once stood well clear of the membrane ends up barely above it. Short base flashing at that height lets wind-driven rain over the top and into the unit opening.
Usually Means: Units lifted and curbs raised as part of the replacement.
Drain lines spilling onto the roof keep the area beside the curb wet.
Pipe stands without pads press into the insulation and stress the sheet.
Seams near units take foot traffic from every service visit and lift first.
Fan curbs missing a metal cap let water behind the base flashing.
Replacement is the one time units come off their curbs, so the details under them get fixed for good.
Curbs left at their old height end up with flashing too short to stop blowing rain.
Curbs are raised while units are off, and flashing runs up and gets a metal counterflashing cap.
Condensate dripping onto the membrane soaks the boards beside each unit.
Lines are rerouted to drains so the roof around each curb stays dry.
Loose stands under gas lines dent the cover board and wear holes in the sheet.
Stands sit on protection pads, and penetrations get new boots or flashed sleeves.
Technicians cross the same bare membrane to reach each unit every season.
Walkway pads mark the path from the hatch to every unit.
Roof systems for office and commercial buildings carrying several rooftop units.
Prefabricated corners, pipe boots, and curb wraps welded to the field sheet keep flashing at each unit consistent.
TPO roofing
Rubber flashing taped and primed up each curb suits office roofs with a modest number of units and light traffic.
EPDM roofingHeavy units on rails, exhaust stacks, and process piping get structural supports flashed into the membrane.
Industrial roofingCall and tell us which unit sits above the drip. Curb flashing and condensate lines are the first things we check.
Roof crews, the mechanical contractor, and inspectors work from one schedule.
We walk the membrane, measure every curb height, note condensate and gas lines, and take core cuts near the units.
PDS issues the roof permit, and the state HVAC inspection is booked for the days units come off their curbs.
The mechanical contractor disconnects and lifts each unit, and curbs are raised to clear the new insulation height.
New insulation and membrane go down, with flashing wrapped up each raised curb and capped with counterflashing.
Units go back on, gas and power are restored, condensate lines reach the drains, and walkway pads are welded in place.
Fort Mitchell joins Erlanger and five more Kenton County towns in our coverage for roof replacement and repair, with building permits from PDS.
Property past these towns? Call us or send us a message.
City HVAC inspector for unit work during reroofs.
All commercial roofing servicesDixie Highway shops with built-up roofs under bitumen.
Commercial roofing in ElsmereAdhered membranes over occupied treatment rooms.
Commercial roofing in EdgewoodRetail parapet blocking checked under old coping.
Commercial roofing in Crestview HillsCounterflashing set into masonry at addition walls.
Commercial roofing in Lakeside ParkStanding seam on new framing over flex bays.
Commercial roofing in Crescent SpringsAnswers for owners and managers whose roofs carry HVAC and exhaust equipment.
The state HVAC inspector does, because Fort Mitchell has no local HVAC inspector on the state's Kenton County contact list. Planning and Development Services of Kenton County issues the permit for the roof itself. Booking the HVAC contractor and the state inspection early keeps units from sitting off their curbs overnight.
New insulation raises the roof surface, and the flashing at each curb needs enough height above it to stay watertight. Raising curbs while units are already lifted takes far less work than a separate job later, and it lets the new base flashing run up and get capped properly.
They get rerouted to drains instead of spilling onto the membrane. Water left to drip beside a curb soaks the boards underneath and grows algae that holds more moisture, so the lines are run to the nearest drain or gutter during the job.
Loose stands under gas lines and conduit get set on protection pads so they stop crushing the insulation. Lines that pass through the roof get new pipe boots or flashed sleeves, and any stand sitting in a low spot is moved where the new slope keeps it dry.
Each unit comes off only for the section around it, and the goal is to reset it and restore service before the crew leaves. Units over critical rooms get scheduled first in the day with the mechanical contractor on site.
Yes. Each unit adds curb work, flashing, disconnects, and coordination with the mechanical contractor, and crane lifts add more. Two roofs of the same size can price far apart once the curb count and heights are measured.
When core cuts show dry insulation around it, new base flashing and a counterflashing cap often stop the leak. If the curb is too short for the roof height, the lasting fix comes when the unit can be lifted during replacement.
Get a free estimate for a replacement that handles the curbs, lines, and inspections around your rooftop units.
Leave a name and number and we will call you back about the roof.
Prefer to talk now? Call (283) 202-7024
