Flat Roof Coating
Low-slope roofs behind parapets on offices and stores.
View ServiceAsphalt Roofs
Owensboro Modified Bitumen Roof Coating Contractor
Extend an Asphalt Roof's Life by Sealing Cracks and Blisters
Owensboro modified bitumen roof coating covers granulated and smooth asphalt roofs, after blisters and cracks are repaired and a bleed-blocking primer goes down.
Asphalt Surfaces
What Owensboro Modified Bitumen Roof Coating Involves
Owensboro modified bitumen roof coating works on the granulated cap sheets and smooth built-up roofs found on many older offices, schools, and shops. Asphalt roofs crack, blister, and lose granules with age, but the layers below often stay dry.
The catch with asphalt is bleed-through: oils in the asphalt can stain a white coating brown. A primer made for asphalt roofs blocks that before the coating goes on, and loose granules are washed off first so the primer reaches the asphalt itself.
- Granulated cap sheet roofs on offices and schools
- Smooth built-up roofs on older shops
- Gravel roofs once the gravel is cleared
- Lap edges resealed before priming
Is This Roof a Fit?
Can Your Asphalt Roof Be Coated?
Asphalt roofs can be coated when blisters are limited, the layers are dry, and any loose gravel can be removed.
| Roof Condition | Coat It | Repair, Then Coat | Replace First |
|---|---|---|---|
| Granule loss and fine crackingClean, prime, and coat. | Usual path | Possible after testing | Not the usual path |
| Scattered blistersBlisters cut and patched. | Possible after testing | Usual path | Not the usual path |
| Gravel surface on built-up roofLoose gravel removed first. | Not the usual path | Usual path | Not the usual path |
| Wet layers in parts of the roofWet areas cut out. | Not the usual path | Usual path | Possible after testing |
| Blisters across most of the roofReplacement is the better path. | Not the usual path | Possible after testing | Usual path |
- Usual path
- Possible after testing
- Not the usual path
Roof Conditions
Modified Bitumen Roof Coating Problems Around Owensboro
Modified bitumen and built-up roofs in Owensboro wear out in these four ways.
- 01
Alligator Cracking
Sun-dried asphalt on the roof breaks into a pattern of small cracks that looks like scales, especially on south-facing slopes.
What We Do
Clean, fill cracks with compatible mastic, and prime.
- 02
Blisters in the Field
Trapped moisture or air between layers swells into blisters that crack open when stepped on.
What We Do
Cut each blister, dry it, and patch with matching material.
- 03
Granule Loss
Bare black patches on a granulated roof show where the cap sheet has lost its protective stone.
What We Do
Prime the bare areas so the coating bonds and blocks bleed.
- 04
Open Laps at Edges
Lap seams near roof edges and walls dry out and curl back from the sheet below.
What We Do
Reseal laps and reinforce edges with fabric.
Coating Options
Commercial Roof Coating Options for Owensboro
Coatings for asphalt roofs in Owensboro start with a bleed-blocking primer.
| Option | Where It Fits | Watch For |
|---|---|---|
| Silicone over asphalt primer | Mod bit roofs with some ponding | Recoat with silicone later |
| Acrylic over asphalt primer | Mod bit roofs that drain well | Needs a dry cure window |
| Mastic plus fabric repairs | Cracked or blistered areas | Done before any field coat |
Asphalt Roof Cracking and Shedding Granules?
Call and describe what the roof surface looks like. Cracks and granule loss usually mean coating is still an option.
Qualified Benefits
Benefits of Coating Your Roof
On an asphalt roof with dry layers, coating brings these benefits. Widespread blisters or wet layers point to replacement.
Asphalt Layers Stay
Coating over the existing cap sheet skips tear-off of heavy asphalt layers, keeping the job in the coating price range.
Business as Usual Below
Offices, classrooms, and shops below keep working because the job is limited to the roof surface.
Less Asphalt in the Landfill
Asphalt tear-off is heavy and bulky, and coating keeps most of it on the building.
White Instead of Black
A white coating reflects much of the sunlight dark asphalt absorbs, so the roof surface runs cooler.
Process
How We Coat a Modified Bitumen Roof
Asphalt roofs get the four-stage process with extra repair time on cracks and blisters.
Inspect Your Roof
We count and mark blisters, check cracking and granule loss, take moisture readings across the layers, and cut cores where readings run high.
- Blisters counted and marked
- Cracks and bare spots noted
- Cores where readings run high
Cut Blisters and Seal Cracks
Blisters are cut open, dried, and patched. Cracks are filled with compatible mastic, and lifting laps are resealed.
- Blisters cut and patched
- Cracks filled
- Laps resealed
Clean and Block Bleed
Loose granules and dirt are washed off, the roof dries, and a primer made for asphalt goes down to stop oils from staining the coating.
- Loose granules washed off
- Dry time
- Bleed-blocking primer
Coat the Roof
Fabric-reinforced coats go over repaired areas and laps first, then the field is coated at the specified thickness.
- Repairs coated first
- Field to spec
- Thickness checked
More Services
Services Related to Modified Bitumen Roof Coating
Asphalt roof owners also compare these services.
Commercial Roof Restoration
Repair, cleaning, and a full system in one project.
View ServiceSilicone Roof Coating
For flat roofs that hold some water after rain.
View ServiceFAQ
Modified Bitumen Roof Coating Questions in Owensboro
Answers for owners of asphalt roofs.
Cost Questions
What does it cost to coat a modified bitumen roof?
Modified bitumen coating falls in our $2.50 to $4 per square foot ballpark. Blister and crack repair, gravel removal, and the bleed-blocking primer decide where in the range a roof lands.
Process Questions
Why does an asphalt roof need a special primer?
Oils in asphalt can migrate into a white coating and stain it brown. A primer made for asphalt roofs blocks that bleed so the coating stays white.
Coating Choice Questions
Can you coat a modified bitumen or built-up roof?
Yes. Granulated modified bitumen and smooth built-up roofs are coated after cleaning, blister and crack repair, and priming. Gravel built-up roofs need loose gravel removed first.
Is coating an option if my asphalt roof has blisters?
Scattered blisters are cut, dried, and patched before coating. When blisters cover most of the roof, the layers have trapped moisture and replacement makes more sense.
Can a gravel built-up roof be coated?
Yes, once the loose gravel is removed. The flood coat underneath is cleaned and checked for soft spots, wet areas are cut out, and a bleed-blocking primer goes down before the coating.
How do you find wet layers in an asphalt roof?
Moisture readings are taken in a grid across the roof, and cores are cut where readings run high. Each core shows how many layers are wet, which decides what gets cut out before coating.
Next Step
Quote Owensboro Modified Bitumen Roof Coating
Get a ballpark range for your asphalt roof, then book the blister and moisture check that comes first.
