Is Fall Mold Creeping Onto Your Roof

As the crisp autumn air settles in and the leaves start to fall, most homeowners are focused on pumpkin decor and raking their yards. But there’s something sneaky that may be settling in overhead: roof mold. Yes, fall is prime time for mold to make itself at home on your shingles, and ignoring it could lead to bigger (and more expensive) problems down the road.

Let’s break down what roof mold is, why it thrives in the fall, and what you can do to kick it to the curb before it spreads.

Why Fall Is Mold’s Favorite Season

Mold is a fungus that loves moisture, shade, and organic debris - all of which come together perfectly during autumn in New England. Here’s why:

• Falling Leaves: Leaves that land on your roof can trap moisture and block sunlight, creating damp, shaded pockets where mold thrives.

• Cooler Temperatures: As temperatures drop, homeowners may not notice excess moisture buildup because it’s not evaporating as quickly.

• Shorter Days: Less sunlight means less natural drying power for your roof.

• Clogged Gutters: Leaf-filled gutters lead to poor drainage and water pooling on the roof. Mold eats this up, literally.

What Mold Does to Your Roof (It’s Not Just Ugly)

Roof mold might seem like just a cosmetic issue, until it isn’t. Here’s what can happen if mold takes hold:

• Shingle Damage: Mold can deteriorate asphalt shingles and shorten your roof’s lifespan. It eats away at the granules that protect your roof from UV rays and weather damage.

• Wood Rot: If moisture seeps beneath the shingles, it can lead to rotting of the underlying wood structures, threatening your roof’s structural integrity.

• Insulation Issues: Mold creeping into your attic or insulation can ruin energy efficiency, sending your heating bills through the roof - pun intended.

• Health Concerns: Mold spores can make their way into your home’s air, potentially triggering allergies, asthma, or other respiratory issues for your family.

How to Stop Fall Mold Before It Starts

The good news? Roof mold isn’t inevitable. With a little proactive maintenance, you can keep your roof mold-free all season long. Here’s how:

1. Clean Your Roof (and Gutters)
   Leaves, twigs, and debris are mold’s favorite housewarming gifts. Clear your roof and gutters regularly, especially after a big wind or rainstorm.

2. Check Your Attic Ventilation
   Poor airflow in the attic can trap moisture and encourage mold growth from the inside out. Make sure vents are clear and consider installing an attic fan if airflow is limited.

3. Trim Back Overhanging Branches
   Shade is great for picnics, not for roofs. Cutting back branches allows more sunlight to hit your roof and dry up any lingering moisture.

4. Inspect for Leaks and Damaged Shingles

   Take a walk around your home and look for signs of water damage, cracked shingles, or dark streaks. If you spot anything suspicious, call in a pro.

5. Consider Copper or Zinc Strips
   These metal strips, installed near the peak of your roof, naturally kill mold and algae as rainwater washes down over them. It’s a smart investment for long-term mold prevention.

6. Book a Professional Roof Inspection
   Fall is an ideal time to have a professional take a look. They can spot early signs of mold or damage you might miss from the ground.

When in Doubt, Call It Out

If you already see mold growing on your roof, don’t panic, but don’t ignore it either. DIY solutions may help with small patches, but for widespread or stubborn growth, it’s best to bring in the experts. Professional mold removal will ensure it’s safely and thoroughly taken care of, without damaging your roof in the process.

A clean, mold-free roof isn’t just about curb appeal. It’s about protecting your investment, your home’s structural integrity, and your family’s health. So this fall, while you’re sipping cider and enjoying the foliage, take a few minutes to look up. Your roof might be trying to tell you something.

Bob O’Donnell is the owner of O’Donnell Bros. Inc., a Bristol-based home improvement company established in 1975. Email your questions to info@odonnellbros.com with the subject line “Ask the Pro.” All questions may be considered for publication. To contact Bob for your remodeling needs, call O’Donnell Bros. Inc. at (860) 589-5155 or visit http://www.odonnellbros.com. Advice is for guidance only.

Put a Roof Check on Your Fall Maintenance List

When it comes to protecting your home, your roof is the unsung hero. It shields you from rain, wind, snow, and sun every single day. Yet most homeowners don’t think twice about it until a problem pops up. By then, it’s usually more than just a minor inconvenience. That’s why fall is the perfect time to give your roof some attention. Taking a little time now can save you a lot of stress and money once winter sets in.

Take a Quick Look

Start simple. Stand back in your yard and scan your roof from the ground. Do the shingles look flat and uniform? Or do you see sagging areas, dark streaks, or patches that just don’t look right? Those could be early warning signs of bigger problems.

Don’t forget the inside of your home either. Water stains on the ceiling, peeling paint, or small cracks in your walls can all signal that moisture is making its way in. Even if you don’t see active dripping, these issues usually start small and then spread. Catching them early is the key.

Remember the Roof’s Birthday

Age is one of the biggest factors in how your roof performs. Most roofs last about 20 years, but that number isn’t set in stone. The quality of the installation, insulation, and ventilation all make a difference. A roof that’s well-installed and properly ventilated can easily last a few extra years, while a poorly maintained one can wear out much sooner.

If your roof is pushing the two-decade mark - or if you’re not sure how old it is - it’s time to start planning ahead. This is especially important if you’ve recently bought your home. Knowing when your roof was last replaced can help you budget and avoid surprises down the road.

Check Those Shingles

Shingles are your roof’s first line of defense, and they’re also one of the easiest things to inspect. Look for shingles that are curling at the edges, splitting down the middle, or missing altogether. These issues often happen as roofs age and are exposed to the elements year after year.

While you’re at it, take a peek at your gutters and downspouts. If you notice piles of shingle granules collecting there, it’s a sign that the protective coating on your shingles is wearing away. Once that happens, your roof is much more vulnerable to leaks.

Don’t Brush Off Moss or Mold

It’s not unusual to see a little moss or dark staining on a roof, but don’t ignore it. Moss and mold thrive in damp, shaded areas, and they can signal that moisture is getting trapped under your shingles. Left unchecked, that moisture can lead to rotting plywood and costly structural damage.

Sometimes, the fix is as simple as cleaning the roof and improving ventilation. Other times, it may require replacing damaged areas. If you’re not sure which it is, calling in a professional is the safest route.

Look Inside, Too

Your ceilings and walls can often tell you what your roof can’t. Yellowish-brown stains, bubbling paint, or cracked drywall are all signs of water damage. Even if the issue looks small, it’s best not to wait. Roof leaks don’t heal themselves - they only get worse. Acting quickly can prevent a small drip from becoming a major repair job.

Call in the Pros

If you’re not comfortable judging the condition of your roof - or just want peace of mind - bring in an expert. Many roofing companies, ours included, offer free inspections. A roofer can tell you how much life your roof has left, point out any problem areas, and recommend the best next steps.

One of the most common reasons roofs fail before their time is poor ventilation and insulation. These issues can cause shingles to age faster, trap moisture, and even lead to rot. A good roofer won’t just look at the surface - they’ll check what’s going on underneath, too.

A little preventative maintenance this fall can make all the difference. Your roof protects everything beneath it. Giving it a checkup now means fewer surprises, fewer headaches, and fewer bills later on.

Bob O’Donnell is the owner of O’Donnell Bros. Inc., a Bristol-based home improvement company established in 1975. For questions, email info@odonnellbros.com with the subject line “Ask the Pro.” Questions may be selected for publication. To contact Bob for your remodeling needs, call O’Donnell Bros. Inc. at (860) 589-5155 or visit www.odonnellbros.com. Advice is for guidance only.

A Roof and Gutter Inspection Checklist for Spring

After a long New England winter, your roof and gutters deserve a little TLC. Spring is the perfect time to inspect for any damage left behind by winter and prep your home for the warmer season ahead. Here’s a simple 10-step checklist to help you spring into action because a quick, proactive check now can save you serious money and headaches down the road. 

1. Safety First. Start smart. Use a sturdy ladder on flat ground, wear shoes with good traction, and don’t go it alone. If your roof is steep or high, consider a safety harness or call in a pro.

2. Ground-Level Walkaround. Before climbing anything, take a walk around your home. Look up and scan for missing or damaged shingles, sagging rooflines, or any debris buildup from winter storms. A pair of binoculars is a handy tool here.

3. Inspect the Roof Surface. If it’s safe, climb up for a closer look. Winter’s freeze-thaw cycles can loosen shingles, damage flashing, and open up trouble spots. Focus on high-risk areas like valleys, chimneys, and skylights.

4. Flashing & Seal Check. Snow and ice can crack flashing and wear down seals around vents and roof joints. Look for gaps or rust, and re-seal any areas that no longer look watertight.

5. Clean Out the Gutters. Winter storms can clog your gutters with leaves, pine needles, and shingle grit. Clear out all debris and make sure water flows freely through the downspouts—otherwise, you’re risking water damage and foundation issues.

6. Confirm Gutter Slope. Gutters should slope slightly toward the downspouts. If water pools or overflows, grab a level and check. Adjust the hangers as needed to restore proper drainage.

7. Check Fascia & Soffits. Cold, wet weather is hard on wood. Look for signs of rot, peeling paint, or pest activity on the fascia boards and soffits—these areas often show the first signs of hidden water damage.

8. Peek Into the Attic. Head inside and inspect the underside of your roof. Water stains, mold, or musty smells could mean you’ve got a leak. Also check that your attic vents are clear to allow air to circulate and moisture to escape.

9. Take Photos. Snap pictures of anything that looks questionable. These will come in handy if you need to call a contractor—or if an insurance claim is necessary.

10. Schedule a Pro Inspection. Even if everything looks good, a professional inspection once a year is a smart move. Pros know where to look for hidden issues and can help extend the life of your roof with early fixes.

Spring is the season for fresh starts and smart maintenance. Your roof worked hard all winter. Give it the attention it deserves this spring so it can keep doing its job all year long. A little maintenance now means fewer surprises later.

Bob O’Donnell is the owner of O’Donnell Bros. Inc., a Bristol-based home improvement company established in 1975. Email your questions for Bob to info@odonnellbros.com with the subject line “Ask the Pro.” All questions may be considered for publication. To contact Bob for your remodeling needs, call O’Donnell Bros. Inc. at (860) 589-5155 or visit http://www.odonnellbros.com. Advice is for guidance only.