By Jacqueline Lane, Owner and Operator of Tony’s Roofs | Knoxville, Tennessee

One of the strangest phone calls we get at Tony’s Roofs usually starts something like this:

“My roof looks perfectly fine, but I have water coming through my ceiling.”

Unfortunately, a roof does not have to look like it survived a tornado to have a leak.

Sometimes the shingles look great from the ground while a tiny problem somewhere else is quietly letting water into the house. And with Knoxville averaging roughly 52 inches of rainfall per year, according to National Weather Service climate normals, even a small weak spot can eventually make itself known.

Usually right after a good East Tennessee downpour.

Here are seven hidden roofing problems homeowners should know about.

1. Cracked or Worn Pipe Boots

Those little pipes sticking through the roof may not look important, but the rubber boots sealing around them can crack, dry out or deteriorate over time.

Once that seal fails, rainwater can follow the pipe down into the attic.

The shingles around it may still look perfectly normal.

That is why looking at a roof from the driveway and saying, “Looks good to me,” is sometimes a little like checking the tires and assuming the engine is fine.

2. Flashing Problems

Flashing is installed around areas such as chimneys, walls, roof transitions and other places where water needs to be redirected.

When flashing becomes loose, damaged or improperly installed, water can slip underneath the roofing system.

And water is persistent.

Give it an opening the size of a toothpick and it will eventually find somewhere expensive to go.

3. Chimney Leaks

Chimneys are one of those roof features everybody notices but very few people inspect.

Leaks can develop around chimney flashing, mortar joints, chimney caps or the area where the chimney meets the roof.

Sometimes homeowners assume the roof itself is leaking when the actual problem is somewhere around the chimney system.

4. Roof Valleys

A roof valley is where two sections of roof come together.

A lot of rainwater travels through these areas, so valleys need to be properly installed and maintained.

Debris, damaged shingles, installation problems or deteriorated materials can allow water underneath the roofing.

And considering how much rain East Tennessee can receive, valleys are definitely not an area where anyone wants shortcuts.

5. Exposed or Backed-Out Nails

Roofing nails can occasionally work loose over time.

A nail that backs out creates a very small opening.

Small opening.

Big rainstorm.

Wet ceiling.

It does not take a hole the size of a baseball to cause trouble. Sometimes one improperly sealed nail is enough to create a leak that leaves a homeowner wondering where in the world the water came from.

6. Old Sealant Around Roof Penetrations

Roofing sealants do not last forever.

Areas around vents, flashing and other roof penetrations can eventually crack or separate.

This is one reason routine roof inspections matter.

Catching a deteriorating seal before water reaches the attic is much cheaper and considerably less exciting than discovering the problem because the ceiling starts dripping during dinner.

7. It Might Not Be a Roof Leak at All

Here is one that surprises homeowners.

Sometimes moisture in the attic is caused by condensation or ventilation problems, not rain coming through the shingles.

Poor attic airflow can allow moisture to accumulate on roof decking, rafters or insulation.

That moisture may eventually show up as staining or damp areas inside the home and look very similar to a roof leak.

That is why finding the source of the problem matters more than simply putting sealant on the first suspicious-looking spot.

Don’t Ignore a Small Water Stain

One of the biggest mistakes homeowners make is assuming a small ceiling stain means a small problem.

Water can travel along roof decking, rafters and other materials before finally appearing inside the house.

The spot showing on the ceiling may not even be directly underneath the actual leak.

And once moisture gets inside, the concern is no longer just roofing. Wet insulation, damaged drywall, deteriorated wood and mold-related moisture problems can become part of the equation.

The Bottom Line

If a roof is leaking but the shingles look fine, do not automatically assume the entire roof needs replaced.

The problem could be something relatively small.

A pipe boot.

A piece of flashing.

A nail.

A valley.

A ventilation issue.

Or one tiny opening that has been letting East Tennessee rain sneak inside.

At Tony’s Roofs, the goal is to determine where the problem is actually coming from before recommending a solution.

Because sometimes a roof is not asking to be replaced.

Sometimes it is just asking somebody to find that one annoying little leak before it becomes a really expensive one.

Tony’s Roofs
Knoxville, Tennessee
Roofing • Repairs • Siding • Gutters • Decks
865-455-3820