Humidity
Rain Inside With No Rain Outside
You See
Wet floors and dripping purlins on clear, cool mornings.
What It Means
Warm, moist air is hitting cold steel; foam on the outside warms the panel and cuts the drip.
Insulation Over Steel Roofs
Shepherdsville Spray Foam Roofing
We install spray foam roofing in Shepherdsville over metal and low-slope roofs. First we check that the roof is dry and solid; then we spray foam and topcoat it.
- Foam Plus Protective Topcoat
- Adds A Continuous Insulating Layer
- Can Taper Toward Drains
- Cuts Condensation Drip
Is This Roof A Fit?
Foam earns its cost when the building needs more than a seal. These four cases show when it does.
If Your Roof
Drips condensation on cool mornings
An exterior foam layer keeps the steel closer to inside temperature, which cuts the drip that bare panels cause.
Start WithSpray Foam Roofing
If Your Roof
Covers an uninsulated shop or plant
One continuous insulating layer goes across ribs and fasteners in a single pass.
Start WithSpray Foam Roofing
If Your Roof
Ponds water in dips and low corners
Tapered foam moves water toward drains, which a coating alone cannot do.
Start WithSpray Foam Roofing
If Your Roof
Only needs leaks sealed and a white finish
A coating by itself seals and reflects for less money when insulation is not the goal.
Start WithMetal Roof Coating
Conditions That Point To Foam
Each card names something an owner notices first, and what it says about foam versus coating.
Heat
Bake-Oven Shops
You See
Workspace under bare steel that runs hot by midday.
What It Means
There is no insulation between the sun and the room, and foam supplies a continuous layer.
Age
Hundreds Of Leaking Screws
You See
Drip lines below every screw row on an older roof.
What It Means
Foam buries the fasteners and ribs in one layer, then the topcoat seals the foam.
Rain
Water Trapped In Low Corners
You See
Puddles against parapets and in dips between purlins.
What It Means
Foam can be built up and tapered so water moves toward drains or gutters.
Moisture
Damp Roof Surface
You See
Soaked insulation or damp laps found during the walk.
What It Means
Foam needs a dry roof to bond, so wet areas are dried out or replaced first.
Site
Cars Parked Along The Eaves
You See
Employee or customer parking right under the roof edge.
What It Means
Overspray travels, so parking near the work is blocked off and wind is watched during spraying.
Commercial Roof Coating Options for Shepherdsville
Foam is one of several ways to deal with an uninsulated or ponding metal roof. Here is how the choices line up.
Foam Over Metal Panels
Foam fills the flats or buries the ribs, then a silicone or acrylic topcoat protects it from sunlight.
Foam Tapered To Drains
Extra foam is built up in low areas so ponding water runs off toward drains or gutters.
Coating Only, No Foam
Roofs that need sealing and reflectance but no insulation get a primed, detailed coating system.
Recoat An Older Foam Roof
Chalking foam topcoats are cleaned, damaged spots repaired, and a fresh topcoat applied.
Benefits of Coating Your Roof
Foam answers problems a thin coating cannot reach. These are the four most owners care about.
No Insulation
A shop that swings with the weather all year.
What Coating DoesFoam adds a continuous insulating layer over the whole roof deck.
Condensation Drip
Drips falling from purlins on cool mornings.
What Coating DoesThe steel stays closer to inside temperature, so less moisture condenses on it.
Poor Drainage
Water standing in dips long after a storm.
What Coating DoesFoam can be tapered to move water toward drains.
Tear-Off Waste
An old metal roof that would otherwise be stripped.
What Coating DoesFoam goes over the existing panels, so the old steel stays out of the landfill.
Water On The Floor With No Rain?
Tell us when the drips show up and whether the building has any insulation. That usually tells us if foam belongs in the plan.
(502) 293-5676How We Plan A Foam Roof
Five decisions behind every foam job, starting with the roof walk.
Inspect Your Roof
We look for wet laps and soaked insulation, check the deck and framing, and measure edges, gutters, and curbs that foam will raise.
Can Foam Go On?
Bonding takes a dry, firm surface. Wet insulation or rotted framing is replaced before any spraying is scheduled.
How Thick, And Where?
Thickness follows the insulation goal and the drainage plan, with extra foam built up where water needs to move toward drains.
What Changes At The Edges?
Gutters, edge metal, and curb flashings are re-detailed to meet the higher foam surface.
What Will It Cost Over Time?
The topcoat protects foam from sunlight and needs periodic recoating. Walks after storms catch punctures before water reaches the foam.
Shepherdsville Spray Foam Roofing Alternatives
When insulation is not the goal, one of these systems fits better.
Metal Roof Coating
Screws, laps, and rust on exposed-fastener panels.
Silicone Roof Coating
Standing water on low-slope panels calls for silicone.
Acrylic Roof Coating
Pitched roofs that shed water fast suit acrylic.
Shingle Roof Coating
Flat, well-attached shingles the maker approves for coating.
Spray Foam Questions
Answers about spray foam over metal roofs in and around Shepherdsville.
Should foam go over our metal roof instead of a coating alone?
It makes sense when the building needs insulation or slope; a coating alone fits when the roof only needs sealing and reflectance. Foam adds thickness, fills flats or buries ribs and screw heads, can be tapered toward drains, and gets its own protective topcoat. It raises edges and curbs and needs careful overspray control around parking.
How do we compare the reflectance of topcoats?
Ask for two numbers on any topcoat: solar reflectance and thermal emittance, each on a 0 to 1 scale where higher means cooler, as the Department of Energy's cool roof guide explains. The Cool Roof Rating Council and ENERGY STAR list rated products. Compare aged values too, since dust from nearby truck traffic dulls a bright surface.
How can we tell if the roof is too far gone for foam or coating?
Large areas of rust-through, daylight showing through panels in many places, rusted purlins, bent framing, and wet, sagging insulation along whole bays all point past coating. Scattered problems point to restoration with some panel replacement; widespread ones point to re-paneling or a new roof before any foam or coating is considered.
Does foam stop the roof from sweating inside?
An outside layer of foam keeps the steel closer to the temperature inside the building, so far less moisture condenses on the underside of the panels. Buildings that also run humid processes or open dock doors all day can still see some moisture, which is worth discussing during the walk.
What happens to our gutters and edge metal?
The roof surface rises at the eaves once foam adds height. Gutters, drip edge, and edge metal are reset or extended to meet the new surface, and curb flashings are carried up so water still sheds over them. Those changes are part of the scope from the start.
Can foam be sprayed with the building open?
Usually, yes. Spraying happens outside on the roof. Parking near the eaves is blocked off for overspray, rooftop air intakes are shut down or covered nearby, and wind is watched closely, with spraying paused when gusts would carry foam toward cars or neighbors.
Price A Foam Roof
Enter the roof size for a ballpark range, or call and tell us how the building handles heat and cold today.