Ponding That Lingers
Dirt rings, algae, and water that sits for days after rain mark low spots where the roof lost slope or a drain sits high.
Low-Slope Roof Replacement
Ashland Flat Roofing Contractor
Find Out Whether Your Flat Roof Needs Repair, Recover, or Tear-Off
As an Ashland flat roofing contractor, we replace and rebuild low-slope roofs, from wet insulation and ponding near drains to worn built-up and single-ply systems.
- FixesPonding at drains
- AddsTapered insulation
- FindsWet boards by core cut
- WorksOne section a day
Is This Roof A Fit?
Which Path Fits Your Flat Roof?
As your Ashland flat roofing contractor, we settle the path before the membrane. These checks sort out what the roof can take.
| Factor | Good Fit | Fix First Or Look Elsewhere |
|---|---|---|
| Moisture | Dry insulation under most of the roof | Wet boards found across several bays |
| Existing layers | One roof on the deck, recover still allowed | Two roofs already, so the next step is tear-off |
| Drainage | Water clears in a day or two | Ponding that stays for days near drains or walls |
| Deck | Solid steel, wood, or concrete from inside | Rusted flutes or rotted boards that need replacing |
| Edges and doors | Room for added insulation height | Thresholds and edge metal already at their limit |
Roof Conditions
Flat Roof Problems We See Around Ashland
Low-slope roofs fail in a few familiar ways. Each one changes the scope of the job.
Blisters and Ridges
Raised blisters on built-up and modified roofs trap moisture between plies and split open under summer sun and foot traffic.
Wet Insulation
Water that gets in at a split seam spreads sideways through the boards, leaving soft areas that read fine from the surface.
Water Trapped Behind Curbs
The upslope side of a rooftop unit curb holds water with nowhere to go unless a cricket splits it toward the drain.
Undersized or Broken Drains
Cracked drain bodies and roofs with no overflow scupper back water up during heavy rain and push it against the walls.
Worn Edge Metal and Gutters
Rusted gravel stop and loose gutters let water behind the membrane at the perimeter, often over rotted wood nailers.
Options
Flat Roofing Work We Take On in Ashland
Every flat roof job starts from the same question: can the old roof stay, or does it come off?
Full Tear-Off and Replace
Every layer comes off to the deck, rusted flutes and rotted nailers are replaced, and a new insulated system goes on.
Recover Over One Roof
Over a single dry existing roof, cover board and a new TPO or EPDM sheet go on top with edges raised to match.
Tapered Insulation and Crickets
Sloped boards and small crickets build pitch toward drains and around curbs, which ends the ponding that shortens roof life.
Drains, Scuppers, and Overflows
New drain bodies or retrofit inserts, rebuilt scuppers, and overflow scuppers where interior drains have no backup.
Benefits
What a Rebuilt Flat Roof Does for Your Building
Getting the layers right under the membrane is what makes a flat roof last.
- Drains
Water Reaches the Drains
Taper and crickets move water off the field and away from curbs and walls, so the membrane is not sitting in puddles.
- Deck
Insulation Back to Full Value
New dry polyiso replaces soaked boards and brings the roof to the energy code level a full replacement requires.
- Edges
Edges Reset to the New Roof
Edge metal, coping, and scuppers are set at the new roof height and sealed to the new membrane instead of reused.
- Seams
One Clean Membrane
A single new sheet replaces years of patches, so the next leak call starts from a known, documented roof.
Water Sitting on Your Roof After Every Rain?
Ponding gets fixed in the insulation under the membrane. A roof walk shows where the slope is missing and which drains sit high.
- Low spots mapped
- Drain heights checked
- Core cuts for moisture
Process
How a Flat Roof Replacement Runs
The building stays dry because only one section is open at a time.
Inspect Your Roof
A moisture survey and core cuts map wet areas, count existing layers, and mark ponding and drain heights.
Pick the Path
The findings decide repair, recover, or tear-off, and set the taper plan for each drain and curb.
Open One Section
The crew removes one area to the deck after checking the National Weather Service forecast, and replaces any bad deck.
Build It Back
Insulation, taper, cover board, and membrane go down on that section, and the edge is sealed to the old roof that night.
Close Out the Roof
Drains are water-tested, edge metal is fastened, and the finished roof is walked and photographed.
Related Services
More From Your Ashland Flat Roofing Contractor
A flat roof rebuild ends with a membrane. Leaks at a few details may only need repair.
TPO Roofing
TPO is the most common sheet on rebuilt flat roofs, with welded seams and a white surface.
TPO Roofing
Commercial Roof Repair
If core cuts show dry insulation and one leaking detail, a repair handles it for now.
Commercial Roof RepairQuestions
Affordable Flat Roofing Options for Ashland Buildings
More answers are on the commercial roofing FAQ.
Cost
What drives the cost of a flat roof replacement in Ashland?
Roof size, the system, insulation and taper thickness, and how many curbs, drains, and skylights need flashing. Edge metal and coping lengths add to it.
Hidden conditions found at tear-off, such as rusted deck, rotted nailers, and wet boards, add more. Unit prices for those are agreed before work starts.
Ponding
How do you fix ponding on a commercial flat roof?
Ponding is fixed with slope. Tapered insulation and crickets built during a replacement send water to drains and scuppers, and drains set too high get lowered or replaced.
A new membrane alone over the same low spots leaves the puddles in place.
Recover
Can a new flat roof go over the old one in Ashland?
Sometimes. A recover needs dry insulation, a solid deck, and only one existing roof. Code limits recovers over wet roofs and multiple layers, so core cuts and the permit office settle it.
Built-Up
Can a built-up roof be replaced with single-ply?
Yes. Old built-up roofs are often torn off and replaced with TPO or EPDM over new insulation. Gravel and felts come off to the deck, which also lets the crew inspect it fully.
Moisture
How do you find wet insulation under a flat roof?
Infrared scans at dusk, capacitance or impedance meters on a grid, and core cuts all find wet boards. Each core cut is patched the day it is taken.
Edges
Why does added insulation change the roof edges?
New insulation and taper raise the finished roof. Edge metal, gutters, scuppers, parapet flashing, curb heights, and door thresholds onto the roof all get checked against the new height.
Timing
How long does a flat roof stay open during replacement?
Only one workday per section. The crew opens what it can close that day and seals the edge to the old roof with a night seal before leaving.
Work With an Ashland Flat Roofing Contractor
Tell us where water sits on the roof and where it shows inside. Core cuts and a moisture check come first.