Loose Curb Flashing
- You See
- Gaps or lifted metal where the HVAC curb meets the roof panels.
- What It Means
- Vibration from the unit has worked the flashing loose. It gets refastened, sealed, and reinforced with fabric before coating.
Curbs, Vents, And Rooftop Units
New Fairfield Metal Roof Coating Contractor
Coating That Keeps Equipment Curbs And Pipe Boots Watertight Longer
As a New Fairfield metal roof coating contractor, we reflash HVAC curbs, vents, and pipe penetrations on small commercial buildings, then coat the surrounding metal roof.
Penetrations First
Metal Roof Coating Around New Fairfield Rooftop Equipment
On a small commercial building, most New Fairfield metal roof coating work centers on what pokes through the panels: HVAC curbs, exhaust fans, plumbing vents, and gas lines. Every opening is a joint between flat steel and something rigid.
Those joints leak long before the open panels do. We reseal curb flashing, replace cracked pipe boots, and set counterflashing where needed, then carry the coating up each curb wall so the detail and the field cure as one layer.
- Curb flashing under HVAC units resealed and fastened tight to the panels
- Cracked pipe boots and vent collars replaced before coating starts
- Water dams behind curbs cleared with crickets or extra coating build
Curb and Vent Problems on New Fairfield Metal Roofs Ahead of Coating
Rooftop units and penetrations on New Fairfield buildings show wear in predictable spots. These six come up most.
Split Pipe Boots
- You See
- Rubber boots around plumbing vents cracked, shrunken, or pulled away from the pipe.
- What It Means
- Sunlight breaks down the rubber over time. We replace the boot with a new one sized to the pipe and panel profile.
Water Behind Curbs
- You See
- Standing water, silt, or rust streaks on the uphill side of a unit.
- What It Means
- The curb is blocking drainage down the slope. A diverter or cricket moves water around it, and that area gets heavier coating.
Dented Service Paths
- You See
- Crushed ribs and scuffed paint where HVAC techs walk to units.
- What It Means
- Repeated steps open seams and fasteners along the path. We repair dents and can add a walkway pad over the coating.
Rattling Exhaust Fans
- You See
- Fan hoods or vent caps shifted on their bases with open caulk joints.
- What It Means
- Wind gusts loosen the base fasteners. The base gets refastened and sealed so the coating has a firm edge to wrap.
Rust Around Gas Lines
- You See
- Orange staining where gas or electrical lines pass through the roof.
- What It Means
- Sealant around the line has dried out. Old caulk is cut out, the steel primed, and a new sealed collar installed.
Benefits of Coating Your Roof
On a New Fairfield metal roof crowded with equipment, coating ties the curbs, vents, and panels into one membrane.
Wrapped Curbs
Coating runs up each curb wall so water meets no open joint at the base.
Tight Penetrations
New boots and collars sit under the coating instead of exposed to sun.
Sealed Panel Laps
Laps between curbs get the same seam treatment as the open roof field.
Cooler Unit Area
White coating reflects heat around rooftop units that pull in outside air.
Better Drainage
Diverters behind curbs send water downslope rather than letting it sit.
HVAC Work Coordinated
Units can be disconnected, lifted, or serviced on a schedule we set with your HVAC company.
Panels Stay On
Existing metal remains in place, so rooftop equipment never has to come off for a tear-off.
Easier Recoats
Future recoats go over a clean surface around each curb and vent.
Commercial Roof Coating Options for New Fairfield
Small commercial roofs in New Fairfield differ in slope and how much equipment sits on them. Those two details guide the system we recommend.
Metal Roof Coating
Elastomeric base and finish coats over repaired curbs, boots, and laps. This is the standard fit for New Fairfield shops and offices with a few rooftop units on exposed-fastener panels.
Commercial metal roof coating
Silicone Roof Coating
Handles the standing water that collects behind curbs on low-slope sections. We plan silicone recoats with the same material later, since other coatings will not bond to it.
Silicone roof coating
Acrylic Roof Coating
Bright, water-based, and easy to touch up after HVAC service. Best on pitched roofs where water clears the curbs quickly, applied in warm and dry stretches.
Acrylic roof coating
Spray Foam Roofing
Foam can be shaped to build slope around curbs and fill uneven panel profiles. It also insulates buildings where rooftop units work hard to heat and cool the space below.
Spray foam roofing
Shingle Roof Coating
For small commercial buildings with a shingled front section and vents through it. We coat shingles that still lie flat after flashing every vent stack on that slope.
Shingle roof coatingLeak Showing Up Under A Rooftop Unit?
Drips near a supply diffuser or under an HVAC unit usually trace back to its curb flashing. Let us know which unit and we will start the inspection there.
Get A Free Ballpark EstimateHave These Ready
- Number of rooftop units
- Your HVAC service contact
- Where the leak appears inside
- Photos of curbs and vents
How Metal Roof Coating Works in New Fairfield Around Rooftop Units
Five steps carry a New Fairfield roof from curb repairs to a finished, measured coating.
Inspect Your Roof
We check every curb, vent, pipe boot, and exhaust fan base, note water stains behind units, and count loose or rusted screws across the panels between them.
Coordinate With HVAC Service
Before work begins, we set dates with your HVAC company so units can be shut down, raised on their curbs, or serviced while the flashing is open.
Rebuild Curb And Vent Flashing
Loose curb flashing is refastened and sealed, split boots are replaced, and fabric-reinforced sealant goes around every penetration so each detail is watertight on its own.
Clean, Prime, And Coat
Panels are washed and rust spots primed. Coating then goes on the field and up each curb wall, with extra thickness around vents and pipe collars.
Verify Mil Thickness
We take gauge readings on the open panels, at curb bases, and around penetrations to confirm the coating reached the thickness the manufacturer calls for.
Nearby Towns Where We Coat Metal Roofs Like Those in New Fairfield
We bring the same curb and penetration work to commercial metal roofs in the towns surrounding New Fairfield.
Answers on New Fairfield Metal Roof Coating
Common questions from owners of small commercial buildings in New Fairfield with equipment on the roof.
Most Asked
Do you offer metal roof coating for New Fairfield businesses with HVAC units on the roof?
Yes. Most small commercial roofs we coat in New Fairfield carry at least one rooftop unit, exhaust fan, or vent stack. We repair the flashing at each curb and penetration first, then coat the panels and carry the coating up the curb walls so every joint is covered.
Why do metal roofs leak around HVAC curbs?
The curb is a rigid box sitting on panels that move. As steel expands and contracts and the unit vibrates, the flashing at the curb base loosens and the sealant cracks. Water that runs down the slope hits the uphill side of the curb, finds those gaps, and gets in.
Does my HVAC company need to be involved in the coating work?
Usually, yes. Units sometimes have to be shut off, lifted, or disconnected so the curb flashing can be rebuilt underneath. We set the dates with your HVAC service provider ahead of time, and they handle anything involving refrigerant, electrical, or gas connections.
How do I pick New Fairfield metal roof coating near me that handles curbs and vents?
Ask how the contractor treats penetrations before coating. A quote that only measures square footage skips the details that leak most. Our inspection lists each curb, boot, and vent with what it needs, and those repairs are priced alongside the coating.
What does a metal roof coating contractor near New Fairfield charge for a roof with equipment?
The ballpark is about $2.50 to $4.00 per square foot of roof area for coating, compared to about $5 to $8 per square foot for replacement. More curbs, vents, and pipe boots add detail work, as do units that need lifting. Final pricing comes after a site visit.
Can rooftop units stay in place while the roof is coated?
In most cases they stay put. We mask intakes and coils, coat around the curb, and wrap the coating up its sides. Units only need lifting when the curb flashing underneath is rusted through or the curb sits too low to flash properly.
Will coating help with water pooling behind a rooftop unit?
Coating handles the water better, but drainage needs its own fix. We add a cricket or diverter on the uphill side of the curb to steer water around it. Silicone coating is a strong choice where some ponding remains after that change.
Hire a New Fairfield Metal Roof Coating Contractor
Send the number of rooftop units and where leaks show inside, and we will schedule a walk of your New Fairfield roof.