Metal Roof Retrofit and Restoration in Pompano Beach, FL
A screw-down metal roof has a fastener hole every few inches, and every afternoon storm in the wet season finds the loose ones. By the second or third summer of neglect, a roof that was tight at install is dripping at dozens of points that nobody can see from the ground. Any warehouse, shop or light industrial building in Pompano Beach, FL that wears this kind of ribbed panel can be in that spot, and the panels underneath may still be sound. That is the good news about a metal retrofit. You often do not need to tear the roof off. You need to decide whether the panels can be saved with new fasteners, sealant and a coating, or whether they should be covered with a new system on top.
Screws and Washers: how exposed-fastener roofs fail
An exposed-fastener panel is held down by screws with rubber washers that seal the hole. Sun and ozone harden those washers until they crack. Thermal movement works the screws loose, and the panel holes elongate around them. Water follows the thread into the purlin or the deck below. Some screws back out entirely. Others strip, spin and stop gripping, so the panel rattles and pulls up at the edge.
Panel laps are the other weak point. Where two ribs overlap, a thin strip of tape or butyl sealant is all that stands between rain and the building. When that dries out or pulls apart, you get a long, thin leak that tracks along the rib. Trim, ridge caps and wall flashings leak next. A leak the owner blames on the panels often traces to flashing, which is where flashing failure repair starts.
A retrofit starts with the existing framing, not with the new panel profile. We measure purlin spacing, inspect the condition of the supports and confirm that the proposed clips and fasteners match the structure. The new assembly also changes the height at eaves, ridges and wall intersections, so those transitions need detailed drawings before fabrication. Where gutters or drains carry water from a long metal slope, their capacity and outlet path should be checked at the same time; a new roof surface cannot make an undersized drainage route work.
Heat Cycles: the daily push and pull of a Broward summer
Metal expands in the heat and shrinks when the afternoon rain hits, and with summer dewpoints in the 70s and warm nights, it never gets a long rest. A long panel moves a little every day, and screws that hold it rigidly take the full load of that movement. Over a few seasons, the washers rub, the holes wear and the coating around each fastener cracks. That is why fasteners fail first, not the panels themselves.
Dark panels move more than light ones, and a long run moves more than a short one. When we inspect, we look at where the screws sit relative to the ribs, whether they are backing out in rows and whether the panel edge has a pattern of damage. That tells us whether we are looking at routine wear or a deeper attachment problem.
Restore First: re-screwing, sealing and coating
If the panels are sound, restoration is the budget-friendly path. We replace backed-out and stripped screws with larger-diameter fasteners that bite into fresh metal, set new washers, reseal laps with butyl or sealant tape, rebuild flashings and clean off chalking and rust. Then the whole roof gets primed where needed and coated with a liquid-applied system, often silicone because it sheds standing water and bonds well to prepared metal. The restoration locks the fasteners under one continuous film and adds reflectivity, which helps with heat.
Restoration only works when the metal is solid. Panels with rust-through, loose purlins or a rotted deck underneath are past the point where a coating helps. Our roof coating restoration work begins with a close look at the metal and the structure, and we will tell you if a coating is not enough.
Over the Top: framing and a new standing seam roof
When the old panels are tired but the building is sound, a retrofit can leave the existing metal in place and install a new roof above it. The usual method is to attach sub-purlins or support framing over the old ribs, add insulation between and above them, and then install new standing seam panels on concealed clips. The old roof becomes a deck. The building stays dry and occupied, nothing is torn off over the tenants, and the new system is no longer dependent on exposed screws.
That approach also lets us add insulation, change the slope or the profile and tidy up the details. The framing must be sized for the wind, and the structure must carry the added weight, so an engineer's review may be part of the job. The building department decides what is allowed over an existing roof, and we handle the permit work that goes with it.
Wind, Salt and the Hurricane Zone
Broward is in the High Velocity Hurricane Zone, so a metal retrofit is not a swap of parts. The new panels, clips, framing and fasteners need a valid Miami-Dade Notice of Acceptance as a tested system, and Hurricane Wilma's 98 mph gust at Pompano Beach in 2005, with roof damage reported across Broward, shows what is at stake. For an old screw-down roof, the question after a storm is whether panels lifted at the edges, whether trim is still tied down and whether fasteners are pulling out. Our wind damage roof repair crews start there.
Close to the water, along the city's roughly 3 miles of beaches or around Hillsboro Inlet, salt adds rust at cut edges, screw heads and fasteners. We use corrosion-resistant fasteners, coated trim and a rinse schedule where the building sits near the coast or the inlet.
Which Buildings Benefit Most: and what to ask first
Metal-clad warehouses, shop buildings and flex space are the natural candidates, and a screw-down roof anywhere in the industrial areas mapped around Alpha 250 and Blount Road is a fair one to look at. Before you decide, ask three questions: how many leaks are there and where, how much rust is on the panels, and what is under the roof. A short survey answers most of it, and a commercial roof leak repair visit is a fair place to start if water is already getting in.
Questions We Hear Often
Why does my metal roof leak at the screws?
The rubber washers harden in the sun and the screws work loose as the panel expands and shrinks. Water follows the thread. New oversize screws with fresh washers usually stop it if the metal around the hole is sound.
Can a metal roof be coated instead of replaced?
If the panels are solid, yes. We clean, re-fasten, seal the laps and coat the surface. Rust-through or a weak structure rules it out, and we say so after a close look.
Does a metal roof retrofit mean tearing the old roof off?
Usually not. A retrofit adds a new roof over the existing metal one, on support framing with new panels on top. The old roof stays as a deck, so there is no tear-off over tenants.
Will a retrofit add too much weight?
Metal is light, but framing and insulation add something, and the wind loads change. We confirm that the structure can carry the new system, sometimes with an engineer.
How long can I wait on a leaking metal roof?
Not through another wet season. A small drip lets water into insulation, rusts purlins and corrodes fasteners from the inside. Call us before the next storm line rolls through.