Gaps Widening at Screw Heads
- You See
- Washers split and screw heads rocking when pushed.
- What It Means
- Ice forms under loose washers and lifts them further each winter. New oversized screws and sealed heads close the path.

As a Bedford metal roof coating contractor, we seal screw rows, eave laps, and trim on steel shops and warehouses, then coat the roof before winter.

Bedford metal roof coating jobs often start with a winter leak that showed up at a screw row or an eave lap. Water that gets under a loose washer freezes, expands, and pries the gap a little wider each cycle.
Sealing those points in early fall closes them before the first hard freeze. The coating then covers the whole field so new gaps have nowhere to start.
Four winter-driven problems show up most on older Bedford steel roofs.
On a Bedford shop with solid steel, coating stops winter leaks for far less than new panels.
| What Changes | Coating The Roof | Replacing The Roof |
|---|---|---|
| Winter Leaks | Laps and screws sealed in fall | New panels and new screws |
| Price Range | About $2.50 to $4 per sq ft | About $5 to $8 per sq ft |
| Shop Use | Doors and bays stay open | Bays exposed during the panel swap |
| Eave Rust | Primed and covered | Removed with the old panels |
| Timing | Done in a few fall weeks | Longer job, weather dependent |
Most Bedford steel roofs take the full metal system, with other options where the roof calls for them.
Primary choice for Bedford shops: rust primer, reset screws, sealed laps, then a field coat.
Low wings and flat additions that hold meltwater after a thaw.
Steep panels that drain fast, coated during mild fall weather.
Cold shops that need insulation added over the existing metal.
Shingled office fronts attached to steel buildings.
Winter leaks at the eave point to laps and screws that need sealing. Call us and we will plan the work for the next dry stretch.
Call UsA Bedford job is timed so the sealing work finishes before cold weather.
We walk the eaves, purlin lines, and ridge, test screws, and look for rust at the bottom panel edges where meltwater sits longest.
Loose and stripped screws are swapped for oversized ones with new washers, and every head is sealed.
Scale along the eave is ground off, and the bare steel is primed before the crew leaves the roof.
Eave laps, end laps, and closures get fabric and mastic, since freeze-thaw attacks these points first.
The field coat goes on during mild, dry days so it cures fully before the first hard freeze.

We also coat metal roofs in the towns below. For a building outside them, please call us or send us a message.


Store and office roofs coated in sections during open hours.
Martinsville metal roof coating
Answers for Bedford owners planning metal roof work.
Our coating range is about $2.50 to $4.00 per square foot, priced after an inspection. On Bedford steel shops the number moves with the count of screws to reset, the rust at the eaves, how many laps need fabric, and lift access around the building.
Steel shops, warehouses, and storage buildings with solid panels and leaks at screws or laps fit best. Office and retail buildings with metal roofs work too. Buildings with panels rusted through across the roof are better off with new steel, and we say so after the inspection.
Call or send a message with the address and roof size, and we set a time to walk the roof. Bedford is part of our regular service area, so the visit fits into normal scheduling rather than counting as an extra trip.
Every freeze turns trapped water at a loose washer or an open lap into a small wedge. By spring a pinhole can be a drip line across the floor. Reinforcing laps and sealing each screw head in the fall removes the water that ice needs to do that work.
Inspections and screw work can happen in cold weather. Coating waits for dry days above the product minimum, which in Indiana means spring through fall. That is why we push Bedford owners to book sealing work early in the fall.
The coating itself handles snow and ice well. The weak points are laps, eave closures, and screw heads, so those get reinforced first. Keeping gutters clear in winter helps meltwater leave the roof instead of backing up under the eave.
A clogged gutter holds ice at the eave, and that ice pushes meltwater back into the bottom lap. We check gutter pitch and outlets during the inspection, and clearing them before winter keeps the sealed eave from carrying more water than it should.
Send the address and a note on where winter leaks show up. We inspect the roof and price the sealing and coating.