Spray foam roofing for Georgetown metal buildings that run hot, run cold, or leak at hundreds of screws: closed-cell foam over the panels, then a protective topcoat.
Foam makes sense when a metal building needs insulation as well as a dry roof. These lists show when to foam and when a coating alone is enough.
Foam reshapes the roof surface. These are the five parts of a metal building that change once inches of foam go on.
Closed-cell foam fills the ribs and valleys of the panels and leaves a smooth, continuous surface. Water stops running in channels toward end laps, and the laps themselves are buried.
Every exposed screw ends up under continuous foam instead of being sealed one by one. Loose and stripped screws are still fixed first so the panels stay tight under the new layer.
Inches of foam raise the roof edge, so gutters, ridge caps, eave trim, and rake trim are adjusted or extended. Counterflashing at walls is reset to the new height.
Overspray travels, so rooftop unit intakes are shut down and covered, and parking under the work area is cleared. Curbs get foam up their sides and a coating over the top edge.
Foam can be tapered thicker in low spots, steering water toward gutters instead of letting it sit. Taper is planned on the roof walk from where water collects today.
Three foam setups cover most metal buildings around Georgetown.
Clean and prime the panels, spray closed-cell foam to the planned thickness, then apply a coating to shield the foam from sunlight. This fits buildings that need insulation across the whole roof.
Silicone topcoats over foam
Sections over offices, break rooms, or equipment that drip from leaks or condensation get foam, while the rest of the roof takes a metal coating.
Metal coating for the rest
Existing foam roofs get cleaned, checked for soft or damaged spots, patched, and given a fresh topcoat to keep sunlight off the foam.
Qualified benefits of foam over a metal roof in good structural shape.
Closed-cell foam runs about R-6 per inch, per DOE Building America, so a metal building gains insulation without work inside the building.
Foam buries fasteners and laps under a single layer, which removes hundreds of small leak points that a coating would otherwise seal one at a time.
Tapered foam fills low spots so water drains toward the gutters instead of sitting on dented or sagging panels.
Insulating the panels from above keeps their underside warmer in cold weather, which cuts the condensation that drips on stock and equipment.
Tell us how the building is used, whether it has insulation now, and where the roof leaks. Those three answers tell us whether foam belongs on your roof.
Five steps from the first walk to a finished topcoat, with edges and code points planned up front.
We confirm the panels and purlins are solid, check for wet insulation from inside, and measure where water collects. Edge heights at doors, walls, and gutters are noted for the foam thickness.
On The Roof
Foam thickness, fire classification of the assembly, recover rules, and edge metal wind resistance are checked against the Kentucky Building Code and the maker listings before ordering material.
PaperworkPanels are washed and primed, screws are tightened, and intakes, vehicles, and walls near the work are covered against overspray. Rooftop units are shut down at their disconnects.
At The Building
Passes of foam build to the planned thickness, with extra taper in low spots. The surface is checked for even texture before the topcoat goes on.
On The RoofA coating goes over the foam to protect it from sunlight, then gutters, ridge caps, and trim are adjusted to the new roof height.
On The RoofFoam pairs with a coating, and some buildings need only the coating.
Metal roof coating is the lighter option when the building already has enough insulation and only the screws and laps leak.
Silicone is a common topcoat choice over foam on low-slope roofs where some water still sits after rain.
Acrylic topcoats suit foam on pitched sections that drain fast and need a bright white finish.
Insulation, code, thickness, and topcoats for foam over Georgetown metal buildings.
Foam suits metal buildings that run hot or cold inside, because it adds insulation and fills the panel corrugations. A coating alone seals and reflects without adding much R-value, which suits buildings where the panels just leak. Closed-cell foam runs about R-6 per inch, per DOE Building America, and inches of it raise edges and trim.
The Kentucky Building Code, published by the Kentucky Department of Housing, Buildings and Construction, covers commercial roofs statewide, including recover work over metal. The points that come up most are fire classification of the foam assembly, recover rules for layers over an existing roof, wind resistance of edge metal and trim, and insulation requirements. Local inspectors enforce it.
Foam over metal is more likely to need a permit than a coating-only job, because it adds insulation and raises the roof edge. Inside Georgetown, call Georgetown Building Inspection with the roof area, panel type, and foam thickness. Buildings in Woodford, Harrison, or Grant County start with their county inspector instead.
Thickness is set by the insulation goal, the drainage taper, and the maker listings for the assembly. Foam is sprayed in passes, and low spots get extra so water drains toward the gutters. The planned thickness is written into the work order, and edge trim is sized to match before spraying starts.
A coating over the top. Sunlight breaks down bare foam, so a silicone or acrylic topcoat goes on once the foam is sprayed and checked. The topcoat is the part that wears, and recoating it on schedule keeps the foam underneath protected.
Yes, with planning. Overspray is the main concern, so rooftop unit intakes near spraying are shut off, vehicles under the work are moved, and nearby walls and windows are covered. Work is done in sections on calm days, and staff keep working inside while the crew sprays above.
Tell us how the building runs in summer and winter, and we will follow up with a roof walk and a free estimate.
Leave a name and number and we will call to talk through the leak, rust, or coating question. Or call us now at (502) 293-5467.