Self-Storage Roofing in Sherman, TX

A storage roof is a row of long metal panels. Each panel is screwed to a purlin. Each screw passes through the sheet and seals under a small washer. Heat stretches the panel. Cold pulls it back. In Sherman, TX temperatures have run from 113 F down to -3 F on record. Over the years the screw holes elongate and the washers crack. Water finds the gap and runs down the purlin.

In a storage building that water lands on boxes, furniture, papers and appliances that belong to tenants. They never see the roof. They only see the damage. One leak can follow a purlin across several doors before anyone opens the first one. We read the roof for those paths early, then repair the fastener, the lap or the flashing before a tenant calls the office.

Metal expands along its length. A long panel moves more than a short one. Where a roof is fastened through the face, the screw holds the sheet in place while the sheet tries to slide. Each cycle wears the hole a little wider. Sealant at laps dries and splits under the same motion. Standing seam panels handle the movement differently, with concealed clips that let the sheet float. They still need clean seams and sound end laps.

Many storage buildings are low-slope, so water leaves slowly. A small gap at a lap can take on water for hours after a storm. Dust and leaves collect at the eave and hold moisture against the panel edge. Rust starts there first. We check the lower few feet of every run because that is where the oldest damage hides. A standing seam metal roof avoids the face screws altogether, which is why it is worth pricing when a screw-down roof wears out.

A drip over unit 40 rarely starts over unit 40. Water enters at the high point and slides along the underside of the panel until it finds a low spot. So we do not chase the stain. We start at the ridge and work down.

• Back out and replace screws that spin freely or sit crooked.
• Reseal laps where the sealant has cracked or pulled away.
• Check ridge caps, end closures and the foam closures beneath them.
• Inspect the flashing at every vent, light and wall-mounted unit.
• Look at the gutter and downspout for rust and clogged outlets.

A moisture scan helps on buildings with insulation under the panels. Wet batts show up as cool, dark areas. We mark them and cut them out. A commercial roof inspection that includes the roof, the eaves and the interior ceilings gives the owner a map of where water has been.

Storage panels are thin. Hail dents them. Light dents are cosmetic. Deep dents at seams, ribs or fasteners are not. A June 8, 2025 hail report from the Denison side measured half-dollar stones, the same day an EF1 touched down along Rockport Road. Hail north of Sadler in April 2014 was dime-size. A storm in that range can pop screws and open laps without leaving a visible hole.

Wind lifts the edge of a metal roof first. Because tornadoes bunch up in April and May here, the edge trim, the ridge cap and the gable rake take the load. We check them after each season and tighten what has moved. Where the damage points to a covered loss, the photographs and measurements support the claim. Our work on a hail-damaged roof starts with the panel count and the dent pattern, then moves to the fasteners.

Three paths are common. A repair replaces failed screws, reseals laps and renews flashing. It suits a roof with sound panels and scattered leaks. A coating covers the whole surface with a liquid system that seals the heads of the fasteners and the laps together. It suits panels that are still flat, dry underneath and free of heavy rust. A retrofit puts new framing and a new panel over the old one. It suits a roof past the point of repair.

The choice depends on the panel condition, not the age on the invoice. We cut a sample, measure the steel and check the purlins. If the panel is thin from rust, a coating will not hold. A metal retrofit then makes more sense. When the panels are sound, the coating or repair costs less and keeps the units in service. We put the options in writing, with the cost drivers named, so the owner can compare.

A storage site stays open. Tenants come and go, and loaded trucks pull through the drive aisles. We stage materials at one end and keep lifts away from the doors in use. Work moves building by building so most units stay open. Where a roof sits over climate-controlled units, we tarp each opening before panels come off, and we never leave a section exposed overnight.

A storage site on US 75 or US 82 frontage depends on how it looks from the road. Howe, on the south side of Sherman, sits where US 75 and Highway 5 meet. A sign, a gate and a clean roofline all tell customers how the site is run. The same long, repeating roof planes show up on a warehouse or a flex building, and the same fastener checks apply. We schedule noisy work around the office hours and keep debris off the lot.

Preventive visits twice a year catch the next loose screw. A written preventive maintenance plan lists each building, the findings and the next date. An owner with several sites can put them on one schedule. Each visit records the screws reset, the laps resealed and the gutters cleared, so the next crew starts from the last set of photographs. Where a building has been tarped, the file also shows the date the tarp came off and the repair that replaced it.

Why does one unit leak when the roof above it looks fine?

Water travels. It enters at a screw or lap, then runs along the underside of the panel or a purlin. It drops where the line dips. We find the entry by working from the ridge, not from the stain.

Can a screw-down metal roof be sealed instead of replaced?

Often. If the steel is thick enough and not heavily rusted, a fastener reset and a liquid coating can close the gaps. We cut a sample and measure it first. A thin or pitted panel needs a retrofit.

How much hail damage is too much for a storage roof?

Dents on the flat of a panel are mostly cosmetic. Dents that crack a seam, flatten a rib or loosen a fastener let water in. We count them by panel and photograph each one so the owner has a clear record.

What happens to tenants' belongings during roof work?

We tarp every opening before a panel comes off. Interior units under the work stay closed, and we tell the office which buildings are active each day. Nothing is left open overnight.

Should the gutters and downspouts be part of the work?

Yes, when they are rusted or clogged. A full gutter sends water back under the eave panel. We clear the outlets, reset the hangers and replace sections that have failed.