FastenersCracked Washers On Screw Lines
Rubber washers harden and split after years of sun, and the screw stops sealing. Replacing every failed fastener along the run, with a larger screw and new washer, ends the drip.

We do Avoca commercial roof repair on metal shops, farm-service, and storage buildings, replacing failed screws, resealing laps, and swapping rusted panels one at a time.

Avoca commercial roof repair is mostly metal work. Shops, equipment storage, and farm-service buildings in this Pottawattamie County town often have exposed-fastener panel roofs that leak along screw lines and laps.
Those roofs can usually be repaired panel by panel. New fasteners, resealed laps, and refastened ridge caps stop most leaks, and only the panels rusted through need replacing. Gutters and eaves get checked on every visit, since rust there spreads up into the panel ends.
Metal shop roofs leak in a handful of places. These four account for most of the Avoca calls, and each card names the part that fails.
FastenersRubber washers harden and split after years of sun, and the screw stops sealing. Replacing every failed fastener along the run, with a larger screw and new washer, ends the drip.
GuttersGutters that hold water and debris rust the panel ends above them. We clean and repair the gutter, cut back rusted panel ends, and seal the eave.
RidgeWind lifts ridge caps and pulls the foam closures out, so rain blows under the cap. We refasten the cap, replace the closures, and seal the laps.
SkylightsFiberglass skylight panels crack and their laps open with age. Matching replacement panels go in with new sealant at both laps.
Most metal shop roofs have years left in the steel. Repair keeps them working while the panels stay solid and the purlins under them stay dry.
Solid panels keep working once the fasteners, laps, and ridge closures around them are renewed.
Tractors, parts, and stored feed under a sealed roof stay out of the drip line and the rust it brings.
Sealing the laps and gutters halts the water that feeds rust along the panel and up from the eave.
Repairs can be timed around planting, harvest, and other busy weeks when the shop is full of equipment.
These repairs cover most metal shop and storage roofs in and around Avoca.
Larger screws with new washers along every failed run, each driven into fresh metal.
See Metal Roof RepairClean, reseal, and refasten end laps, side laps, and ridge caps with new closures.
See Leak RepairReplace only the panels rusted through, matched to the existing profile and gauge.
Swap cracked fiberglass panels and reseal both laps with fresh sealant and screws.

Tell us which bay drips and how long it has. We count the failed screws over it and send a written price for the fasteners and laps.
Get A Free EstimateShop roof repairs follow four steps, starting inside the building.

With the lights off, daylight through screw holes and laps shows where the panels have opened. We mark those spots before going up.
On the roof, every screw line and lap over the marked bays gets checked, and the failed ones get counted for the price.
Gutters get cleaned and resealed, and rusted panel ends at the eave get trimmed back, so water leaves the roof instead of sitting at the panel edge.
New fasteners, lap sealant, and replacement panels go in starting at the eave, so each lap sheds water over the one below.
After the repair, a second look from inside in daylight confirms the repaired laps and screw lines show no light.
We also repair commercial roofs in these towns around Avoca.
Somewhere else? Call us or send us a message.
Warehouses, dealer shops, and cold storage across the city.
Brick storefronts and offices near the Mills County courthouse.
Low, flat lots west of the Missouri River.
Shops and warehouses timed around freeze and thaw.
Harrison County seat offices with past leak records.
Answers about metal shop roofs, cost, and repair timing.
In most cases, yes, as long as the panels are still solid. Worn screw washers, open laps, and loose ridge caps cause most shop leaks, and all three can be repaired. We replace the fasteners, reseal the laps, refasten the trim, and swap only the panels rusted through.
The number of failed screws, the length of lap to reseal, and how many panels need swapping set the price. Roof height and whether a lift is needed change the labor. A shop with one bad screw line costs far less than one with rust across many panels.
Most jobs include fastener replacement along the leaking runs, lap and ridge sealing, and a few panel or skylight swaps. Gutters and eaves get checked too, since rust there spreads up into the panels.
A contractor should look from inside for daylight at screws and laps, then check every fastener on those runs from the roof. Ridge closures, skylight laps, and gutters need a look too, since those leak next once the screws are fixed.
Repair comes first either way. Failed fasteners, open laps, and rusted-through panels have to be fixed before any coating goes on, or the leaks continue under it. Once the roof is tight, a coating is a separate decision you can make later.
Yes. Replacement fiberglass panels need the same rib profile as the steel panels beside them, or the laps will not seal. We match the profile on the roof before ordering, and set the new panels with fresh sealant and fasteners at both laps.
Tell us which shop leaks and where. We check the screws, laps, and ridge, and send a written repair price for each item we find.