5 surefire signs your roof needs repairs – or a replacement

Your roof is one of the most important components of your home. It protects you, your family and your belongings from rain, snow, wind and sun, acting as the first line of defense against external elements. Your roof contributes significantly to the structural integrity of your home and helps regulate indoor temperatures.

As such, maintaining your roof is key to avoiding costly repairs , according to Mark Roberts, project manager at Nova Roofing and Restorations , a commercial and residential roofing company located in Dedham, Mass. "Your roof is arguably the most important part of your house," he says. "Any problems you experience with the roof can compromise your home. If it leaks, you're inviting wood rot, bugs, water damage — a whole host of issues."

Roofs are generally difficult to access, and it's easy for homeowners to overlook worrisome conditions until serious problems arise. Proactively identifying warning signs can help address issues before they worsen, saving time, money and stress.

Here's a look at five warning signs your roof may need to be repaired or replaced. You may also want to read our in-depth guide on how to determine if a full roof replacement or basic repairs are right for your roof . 

1. Age of the roof

A roof's age is a good indicator of when it may be time to be replaced, said Larry Canoni, owner of Canoni Roofing , a roofing contractor in Natick, Mass. You should realistically expect a modern roof to last 25 to 30 years, according to Canoni.

The lifespan of a roof depends on a variety of factors, including local weather conditions, building and design, material quality and adequate maintenance, according to the International Association of Certified Home Inspectors (InterNACHI). Hot climates, for example, will drastically reduce asphalt shingle life, while roofs in areas that experience severe weather, such as hail, tornadoes or hurricanes, may also experience shorter roof lifespans.

InterNACHI says, in general, homeowners can expect the following lifespans of roofs based on the roofing materials.

• Asphalt shingles:20 to 30 years

• Wood shingles:25 years

• Metal roofs:40 to 80 years

• Copper roofs:70 years

• Slate roofs:60 to 150 years

If your roof is near or exceeding its typical lifespan, Roberts says it's wise to call a professional roofing company for an inspection. 

"Honest roofing companies will tell you whether you can get another few years out of your roof, or whether it might be time to replace it," he said. 

Some roofing companies do free inspections, too, so you might not have to pay anything for the information.

2. Granules in your gutters

Asphalt shingles are coated with mineral granules that protect them from the sun's UV rays and other weathering factors, such as heavy rain and snow. Over time, shingles start to shed these granules, which accumulate in gutters and downspouts. According to Roberts, this is a warning sign that your shingles are degrading.

"When that sandy layer comes off and the asphalt is exposed, the sun will cook the shingle fast, and that's when the shingles really start to deteriorate," he said. This can happen quickly, too. "At the beginning of the year, your shingles can look fine, and after the summer, they look like they were boiled in oil."

Aside from granules in the gutters and downspouts, other signs of granule loss include:

• Increased water runoff.This leads to less protection and faster runoff, which can cause water damage.

• Bald spots on the shingles.This indicates that the shingles have lost their protective layer.

Homeowners may notice granule loss immediately after the first rainstorm following a new roof installation, Canoni said. This isn't a cause for concern. 

"When a roof is being replaced, workers are moving around on it a lot and some will fall off," he said. "Once that first rainstorm washes those away, you shouldn't have any more granule loss until the end of the lifetime of the shingle."

3. Curled, cracked or missing shingles on your roof

Curled or cracked shingles are a sign that your roof is aging and the shingles are losing structural integrity, according to Canoni. "There's a layer of tar that sticks the shingle to the one underneath it," he said. "Once that deteriorates, wind can get under them, and that's when pieces of shingles or entire shingles fly off the roof in heavy wind."

Curled and cracked shingles compromise the roof's ability to protect your home, and missing shingles create gaps where water can penetrate. Sometimes, the integrity of the shingles is not apparent unless viewed from the roof. For this reason, Canoni suggests reaching out to a roofing company to perform an inspection if you suspect there may be damage. Again, you may be able to get a free inspection from a reputable local roofer.

4. Damaged roof flashing

Flashing is a thin material, typically made of galvanized steel, copper, or aluminum, that is installed around the edges of a roof and along the chimney, vent pipes, and skylights to direct water away from vulnerable areas and prevent leaks. This flashing is essential for your roof's performance and structural integrity. If it's not installed properly — or if it sustains damage — water can leak into your home, according to Roberts.

"If the flashing isn't installed properly, like around the chimney, and it isn't down tight, you're going to have water coming right down the chimney and leak into the house," he said. "You'll get water damage in your home every time if this becomes a problem."

Inspecting roof flashing is an important part of annual roof maintenance and can save homeowners from costly roof repairs and problems before they start.

5. Roof leaks and water damage

Perhaps the most noticeable sign that your roof needs repairs or replacement is leaking and water damage, Roberts said. Stains on the ceiling, walls and attic indicate that the roof may be leaking. Peeling or bubbling paint also suggests that moisture may be trapped in the walls or ceiling.

"If you notice a stain, you want to find out whether it's old or new, and try to locate the area on the roof," Roberts said. "Maybe you don't notice anything amiss outside, so perhaps it's an old stain and you just keep an eye on it. But if you do notice a hole or a gap or a missing shingle, it's worth exploring further."

Leaks are often symptoms of underlying issues, such as damaged shingles or poor flashing installation. Untreated leaks can create significant problems for the homeowner, Canoni said. Persistent moisture from leaks encourages mold growth, which can cause health issues and require expensive eradication.

If water damage is widespread, a roof replacement may be necessary to ensure your home remains dry and safe. When in doubt, get an estimate from the professionals.

A little roof awareness and maintenancegoes a long way

Maintaining your roof is critical for protecting your home's structure. Recognizing signs like aging, damaged shingles, flashing problems and leaks can help homeowners make informed decisions about when it's time to replace a roof. 

Calling a licensed roofing contractor for an inspection can help you make the right decision about replacing or repairing your roof. Make sure to ask the roofing company the right questions before hiring to ensure it is a good fit for your roof repair or replacement. 

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