Steamy Temps Bring Summer Window Woes

This past week’s brutal heat and sky-high humidity had many of us hiding indoors, glued to the AC. But while we were doing our best to stay cool, our windows may have been trying to tell us something. If you’ve noticed water droplets forming on the inside of your windows—or a foggy film that just won’t quit—you’re dealing with summer window condensation. And no, it’s not just a minor annoyance. It can be a sign of bigger problems brewing in your home.

So, what’s going on here?

Condensation forms when warm, humid air hits a cooler surface. In the winter, that’s usually on the inside of your windows. But in the summer, it’s the reverse. Your air conditioner is keeping your indoor air refreshingly cool, while the air outside is heavy and hot. When those two climates meet, like when humid air seeps in and touches your chilly window glass, moisture condenses, and you get that telltale fog or water buildup.

In reality, a little condensation now and then isn’t the end of the world. But if you’re noticing it regularly, especially during extreme heat and humidity, it can point to problems with ventilation, insulation, or moisture control in your home.

In our Connecticut climate, summer humidity is no joke. Add in long showers, laundry, cooking, and even houseplants, and you’ve got a recipe for excess indoor moisture. If your home doesn’t have proper airflow or if your windows aren’t up to the job, that moisture sticks around, and your windows become the battleground where it all shows up.

And here’s the thing: if you ignore it, condensation can go from cosmetic to costly. Excess moisture creates the perfect environment for mold and mildew, which can trigger allergies, irritate lungs, and leave a lingering musty smell. Over time, moisture can also cause wood window frames to warp or rot, damage seals, and reduce your windows’ effectiveness. Even if it’s just clouding your view, you’re still losing out on natural light and visibility.

So, what can you do?

Start with airflow. Use exhaust fans in bathrooms and kitchens, and don’t be afraid to crack a window when the outdoor air is drier. A dehumidifier can also make a significant difference, especially in areas prone to moisture, such as basements.

Next, take a hard look at your windows. If they’re single-pane or older double-pane units, they might not be insulating properly. Modern double- or triple-pane windows are designed to prevent this kind of condensation by minimizing temperature swings on the glass surface.

And don’t forget the little things like sealing air leaks around windows and doors, opening blinds or drapes during the day to improve air circulation, and keeping indoor plant collections in check. Every small step helps.

Condensation might seem like a minor inconvenience, but it’s often a symptom of bigger issues in your home’s comfort and energy efficiency. Take care of it now, and your windows and your wallet will thank you later.

Bob O’Donnell is the owner of O’Donnell Bros. Inc., a Bristol-based home improvement company established in 1975. Got a home issue you’d like Bob to tackle? Email info@odonnellbros.com with the subject line “Ask the Pro.” 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.

Why Is My Roof Streaky? Here’s What You Need to Know

If you’ve noticed black streaks, moss, or patches of discoloration on your roof, you’re not alone. These stains are common and may seem like a minor issue at first, but they can lead to bigger problems if ignored.

The most common cause of roof streaking is algae, specifically, a type called Gloeocapsa magma. It spreads through airborne spores and tends to thrive in warm, humid environments. Once it lands on your roof, it starts to grow, especially on shaded areas where moisture hangs around. Over time, you might also see moss or lichen, which can cause even more damage by holding moisture against the surface of your shingles.

These growths aren’t just cosmetic. Algae and moss can wear down your roofing materials, shorten the life of your shingles, and in some cases, lead to leaks or water damage. That’s why regular roof cleaning is important.

So, what’s the best way to clean your roof? It’s not a job for a pressure washer. In fact, using high-pressure water can damage your shingles and lead to costly repairs. Professional roof cleaners use a method called soft washing, which combines low-pressure water with specially formulated cleaning solutions that safely remove algae, moss, and dirt without harming your roof or surrounding landscaping.

A proper roof cleaning usually takes just a few hours and can dramatically improve the look and health of your roof. It also gives a roofing professional the chance to inspect for other potential issues like cracked flashing, loose shingles, or clogged gutters that could cause problems later.

It’s also important to pay attention to any warning signs that there might be a deeper issue. If you notice a musty smell in your attic, signs of water damage on your ceiling, or poor ventilation, there may be moisture getting inside. That could mean your roof needs more than just a cleaning. It might be time to check insulation, repair parts of the roofing structure, or even have the roof replaced. 

Having your roof inspected and cleaned at least once a year, especially in the spring or early summer, is a smart habit. It helps catch small issues before they become bigger problems, protects your home, and keeps your roof looking its best.

And remember, roof work can be dangerous. Between the height, the angle, and the risk of damaging your shingles, it’s not something you want to tackle on your own. Always call a licensed professional who has the right tools, training, and safety equipment to get the job done right.

Your roof is a big part of what keeps your home safe and dry. A little regular care goes a long way in keeping it that way.

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.

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.