Mooresville NC Roof Problems and Signs You Need a New Roof

You can spot most worn-out roofs in Mooresville before they leak. Some signs are easy to miss from the driveway, and a few show up only in the attic. If you know what to look for, you can catch a worn-out roof before a leak stains a ceiling or soaks the insulation.

Catawba Valley Roofing and Restoration inspects and replaces asphalt shingle roofs across Mooresville and the Lake Norman area. We tell homeowners to watch for the signs below. After them come the problems we find most on Mooresville roofs, so you can tell a roof that needs a closer look from one that's near the end.

Warning Signs You Can See From the Yard

Walk the full outside of the house on a dry, sunny day. A pair of binoculars helps on a two-story home. Look at each slope, since one side can wear out years ahead of the others.

Curling or Cupping Shingles

A healthy shingle lies flat. As it ages, the edges can turn up or the middle can sink into a cup shape. Curled shingles catch the wind and let rain blow underneath. Curling across a whole slope, instead of one or two spots, means the shingles on that side are close to the end of their life.

Missing, Cracked or Creased Shingles

A shingle that's gone leaves the layer underneath open to the weather. Cracks and creases are harder to spot. A crease is a straight line across the shingle where the wind bent it back, and it means the shingle has come loose from its seal at least once.

Bare Spots and Granules in the Gutters

The rough, sandy surface on a shingle is a layer of granules that protects the asphalt from sunlight. A new roof sheds some loose granules in its first year. After that, a steady stream of them in the gutters, or dark bare patches on the roof, means the shingles are wearing through. Our post on granule loss on asphalt shingles shows what normal and heavy loss look like.

A Roofline That Dips

Stand back and look along the ridge and the edges of the roof. They should run straight. A dip or a sag between the rafters can mean the wood deck under the shingles has taken on water and started to soften. Call for an inspection before the next heavy rain if you see one.

Warning Signs Inside the House

Some of the clearest signs of a failing roof show up indoors, sometimes months after water first got in.

• Brown or yellow stains on ceilings, often near an outside wall or under a chimney
• Peeling or bubbling paint high on walls near the roofline
• Daylight showing through the roof boards when you stand in the attic with the lights off
• Damp or matted insulation, or dark marks on the roof boards overhead
• A musty smell in the attic or the upstairs closets
• Upstairs rooms that stay hot all summer even with the air conditioning running

Hot upstairs rooms can also point to poor attic ventilation. Trapped attic heat cooks shingles from underneath and takes years off the roof.

The Roof Problems We Find Most in Mooresville

Mooresville roofs deal with hot, humid summers, afternoon thunderstorms that bring wind and hail, tall trees in the older neighborhoods and damp air off Lake Norman. These are the problems we find on inspections around town again and again.

Broken Seals After Storms

Each shingle has a strip of adhesive that bonds it to the shingle below. A strong summer gust can break that bond without tearing the shingle off. From the ground the roof looks fine, but water can now slip under the loose tab, and the next storm has an easier time ripping it away. Shingles nailed outside the marked nailing line come loose first.

Hail Bruising

Hail tends to knock granules loose in small round spots and bruise the mat underneath, often with no crack you can see. You may notice dents in the metal vents, gutters or downspouts before you notice anything on the shingles themselves. If you find dented metal after a hailstorm, call for an inspection.

Leaks at Chimneys, Walls and Pipes

Anywhere the roof meets something else, metal flashing keeps the water out. Chimneys, side walls, plumbing vents and pipe boots all rely on it. Rubber pipe boots crack in the sun, and older flashing can pull away or rust through. Flashing is one of the most common leak sources we find, and it's why ceiling stains so often show up near a chimney or an outside wall.

Valleys Packed With Leaves and Needles

A valley is the channel where two slopes of the roof meet, and it carries more water than any other part of the roof. Around the lake, oaks and pines fill valleys and gutters every fall. Debris that dams up a valley or gutter sends water back under the shingles, and over time it rots the edge of the roof deck.

Attic Ventilation

On inspections we often find attics with too few vents for their size. Without enough intake vents at the eaves and exhaust vents up high, summer heat and moisture build up under the roof deck. You'll see it as curling shingles on a roof that isn't that old, or rusty nail tips and damp spots in the attic.

Algae and Moss Near the Lake

The black streaks on so many Lake Norman roofs come from algae, and they start on the slopes that stay damp longest. Algae starts as a cosmetic problem. Moss is a bigger concern, because it holds water against the shingles and lifts their edges as it grows.

Is It a Problem Spot or the End of the Roof?

One damaged area on a younger roof is a different situation from wear on every slope of an older one. Age matters most. Around here, we see asphalt shingle roofs last about 15 to 25 years, and our guide to how long a roof lasts in NC explains how to find out how old yours is.

If your roof is in that range and you're seeing several of the signs above, replacing the roof often makes more sense than paying to chase one problem after another. If the roof is younger and the damage sits in one spot, the answer may be different. After a free inspection, we'll tell you which one you're dealing with. We look over the shingles, flashing and vents, go up into the attic, and walk you through what we found.

What to Do After a Storm

After a big storm, walk around the house and take photos of anything that looks different, including shingles in the yard and dents in the gutters. Stay off the roof. Then call us for a free inspection before you file anything with your insurance company. We'll document the damage with photos and notes so you have a clear record in hand.

Every policy is different, and your insurance company decides what's covered. Our roof insurance claims page explains how we support homeowners through a claim, and our Mooresville roofing page answers the questions we hear most from homeowners in town.

Get a Free Roof Inspection in Mooresville

If you've spotted any of these signs, or you want to know where your roof stands, call Catawba Valley Roofing and Restoration LLC at (828) 962-0617 for a free inspection. If you'd like a price range first, our free instant roof estimate tool gives you one in a couple of minutes, no phone call needed.

We serve Mooresville, Cornelius, Huntersville, Denver, Sherrills Ford, Statesville, Hickory and the surrounding communities of western North Carolina.