Cooler Weather Offers a Chance to Clean Up Summer's Grime

There is a noticeable change in the air this time of year. After months of sticky summer humidity, we're finally enjoying cooler mornings, crisp afternoons and the kind of weather that makes working outside a pleasure rather than a chore.

While the humidity may have moved on, it often leaves a few reminders of what moisture can do to a home. Take a walk around your house and look closely at your siding, porch railings, steps, and shaded areas. You might notice green patches, dark streaks, or a dingy film that wasn't there in the spring. Months of warm, damp weather create ideal conditions for algae, mildew and other organic growth to take hold, particularly on the north side of a house or anywhere that doesn't get much direct sunlight.

Since we aren't quite into the thick of leaf cleanup season yet, and it's not cold enough to put away the outdoor tools, mid-October is a good time to tackle some of the grime that's been building up around your home's exterior.

Start with the siding.

Green algae and other discoloration can develop in areas that stay damp, particularly behind shrubs, beneath overhangs and along shaded walls.

Fortunately, you don't necessarily need to drag out the pressure washer to address it. Products like Wet & Forget and other exterior cleaning solutions are designed to treat organic growth on siding, decks, and other outdoor surfaces. Some are sprayed on and left to work gradually with the help of rain and weather. They generally won’t damage your landscaping or plants, although I would take care around vegetable gardens. 

Just remember that these aren't instant fixes. Depending on the product and the amount of buildup, it can take weeks or even months to see the full results. Always follow the manufacturer's instructions, including temperature requirements and precautions for pets and vegetation.

Don't overlook porches and railings.

Porches are another place where summer moisture tends to linger. White railings, columns and trim can develop dark spots or green discoloration, especially where there's limited airflow.

A gentle cleaning can make a noticeable difference. Before reaching for a strong chemical or pressure washer, check what cleaning methods are recommended for your particular surface. Painted wood, composite materials, and vinyl don't all respond the same way.

Be careful with pressure washing too. A lot of pressure can damage paint, force water behind siding, or splinter wood. More pressure isn't necessarily better.

Pay attention to what's underfoot.

Algae and other organic growth aren't just unsightly. They can make steps, walkways, and decks surprisingly slippery, particularly after rain.

Check shaded entryways, concrete steps and areas around downspouts where water tends to collect. These are worth cleaning before fallen leaves and colder temperatures make footing even more unpredictable.

If you're using a cleaning solution, make sure it's approved for the surface and follow any instructions about rinsing or keeping people and pets off the treated area.

Look for the reason it's growing.

Here's something I always tell homeowners: Cleaning is one thing, but understanding why a problem keeps coming back is just as important.

If the same section of siding turns green every year, take a closer look. Are shrubs growing too close to the house? Is a gutter overflowing? Does a downspout empty right next to the foundation? Is there an area that never gets enough sunlight or airflow to dry out?

Sometimes a little pruning, improved drainage, or a simple gutter repair can make a bigger difference than another round of cleaning.

And remember, not every dark stain is mold. Algae, mildew, dirt, and other buildup can look similar. If you suspect significant mold growth or moisture damage inside the home, that's a different issue that deserves professional attention.

Take advantage of the weather while you can.

One of the nice things about October in Connecticut is that we often get a stretch of beautiful, comfortable days before winter settles in. They're perfect for smaller outdoor projects that are easy to put off during the heat of summer.

Choose a day that meets your cleaning product's temperature and weather requirements, and pay attention to the forecast. Some treatments need several hours without rain, while others shouldn't be applied when freezing temperatures are expected.

A little attention to what summer left behind can help keep your home looking its best and give you one less thing to worry about when spring rolls around.

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 odonnellbros.com. Advice is for guidance only.

What's Under Your Roof Matters

When you’re getting estimates for a new roof, most of the conversation naturally revolves around the things you can see, including the shingles, color, style and, of course, the final price.

There is another part of your roof that deserves just as much attention, even though you will probably never see it once the job is finished: the plywood underneath.

The plywood, also called roof decking or sheathing, is essentially the foundation of your roofing system. The underlayment and shingles are installed over it, so the decking needs to be solid, dry and structurally sound enough to properly support the new roof. The tricky part is that we often do not know exactly what condition that plywood is in until the old roof comes off.

A roof can look relatively normal from the outside while hiding deteriorated plywood underneath. Years of small leaks, condensation, poor ventilation, or moisture intrusion can leave sections of the decking soft, rotten, moldy or otherwise compromised. Once the old shingles and underlayment are removed, the roofing crew finally gets a good look at what has been happening underneath.

Does that mean every roof replacement needs all-new plywood? Not necessarily. If the existing decking is dry, solid, properly installed, and in good condition, there may be no reason to replace it. However, if portions have deteriorated, replacing those sections is an important part of doing the roof correctly.

This is also one of the areas where homeowners can get caught off guard by cost. Plywood is expensive, and depending on how much needs to be replaced, it can add a noticeable amount to the final bill. When you are already making a major investment in a new roof, it is understandable to wonder whether the old plywood can simply stay in place.

Putting brand-new roofing materials over deteriorated decking is a little like installing beautiful new hardwood floors over a damaged subfloor. You may save money that day, but you have not solved the underlying problem.

Weak or damaged decking may not hold roofing fasteners as securely as sound material. It can also contribute to uneven or sagging areas and leave the roofing system more vulnerable to problems in the future. Most importantly, you are installing a product designed to last for decades over a foundation that may already be deteriorating.

There is also the issue of the manufacturer’s warranty. Roofing manufacturers generally require shingles to be installed according to their specifications and over an appropriate, sound roof deck. Installing shingles over compromised or improperly prepared decking can potentially affect warranty coverage. The exact requirements vary by manufacturer and product, which is another reason the condition of the decking should be addressed during installation rather than ignored.

I always encourage homeowners to look beyond the big number at the bottom of a roofing estimate and review what is actually included. Ask your contractor what the estimate says about plywood or roof decking, whether any replacement is included and what the additional cost will be if deteriorated sections are discovered after the old roof is removed.

This is especially important when comparing estimates from different contractors. One contractor may appear considerably less expensive than another, but the two estimates may not include the same scope of work. If one accounts for replacing damaged decking and another barely mentions it, the lower price may not tell the whole story.

Nobody likes unexpected costs during a home improvement project, and contractors do not particularly enjoy delivering that news either. However, when we uncover rotten or deteriorated plywood, replacing what needs to be replaced is usually money better spent than covering up the problem and hoping for the best.

A new roof is a significant investment in your home, and ideally, you should be able to install it and not worry about it again for a very long time. When the old shingles come off, homeowners should understand what is underneath, review the condition of the decking with their contractor and know how any necessary replacement will affect the project.

Saving money is always worthwhile, but cutting a corner that could compromise the life of your new roof rarely is.

Bob O’Donnell is the owner of O’Donnell Bros. Inc., a Bristol-based home improvement company established in 1975. Have a question? Email info@odonnellbros.com with the subject line “Ask the Pro.” For your remodeling needs, call O’Donnell Bros. Inc. at (860) 589-5155 or visit www.odonnellbros.com. Advice is for general guidance only.

When you’re getting estimates for a new roof, most of the conversation naturally revolves around the things you can see, including the shingles, color, style and, of course, the final price.

There is another part of your roof that deserves just as much attention, even though you will probably never see it once the job is finished: the plywood underneath.

The plywood, also called roof decking or sheathing, is essentially the foundation of your roofing system. The underlayment and shingles are installed over it, so the decking needs to be solid, dry and structurally sound enough to properly support the new roof. The tricky part is that we often do not know exactly what condition that plywood is in until the old roof comes off.

A roof can look relatively normal from the outside while hiding deteriorated plywood underneath. Years of small leaks, condensation, poor ventilation, or moisture intrusion can leave sections of the decking soft, rotten, moldy or otherwise compromised. Once the old shingles and underlayment are removed, the roofing crew finally gets a good look at what has been happening underneath.

Does that mean every roof replacement needs all-new plywood? Not necessarily. If the existing decking is dry, solid, properly installed, and in good condition, there may be no reason to replace it. However, if portions have deteriorated, replacing those sections is an important part of doing the roof correctly.

This is also one of the areas where homeowners can get caught off guard by cost. Plywood is expensive, and depending on how much needs to be replaced, it can add a noticeable amount to the final bill. When you are already making a major investment in a new roof, it is understandable to wonder whether the old plywood can simply stay in place.

Putting brand-new roofing materials over deteriorated decking is a little like installing beautiful new hardwood floors over a damaged subfloor. You may save money that day, but you have not solved the underlying problem.

Weak or damaged decking may not hold roofing fasteners as securely as sound material. It can also contribute to uneven or sagging areas and leave the roofing system more vulnerable to problems in the future. Most importantly, you are installing a product designed to last for decades over a foundation that may already be deteriorating.

There is also the issue of the manufacturer’s warranty. Roofing manufacturers generally require shingles to be installed according to their specifications and over an appropriate, sound roof deck. Installing shingles over compromised or improperly prepared decking can potentially affect warranty coverage. The exact requirements vary by manufacturer and product, which is another reason the condition of the decking should be addressed during installation rather than ignored.

I always encourage homeowners to look beyond the big number at the bottom of a roofing estimate and review what is actually included. Ask your contractor what the estimate says about plywood or roof decking, whether any replacement is included and what the additional cost will be if deteriorated sections are discovered after the old roof is removed.

This is especially important when comparing estimates from different contractors. One contractor may appear considerably less expensive than another, but the two estimates may not include the same scope of work. If one accounts for replacing damaged decking and another barely mentions it, the lower price may not tell the whole story.

Nobody likes unexpected costs during a home improvement project, and contractors do not particularly enjoy delivering that news either. However, when we uncover rotten or deteriorated plywood, replacing what needs to be replaced is usually money better spent than covering up the problem and hoping for the best.

A new roof is a significant investment in your home, and ideally, you should be able to install it and not worry about it again for a very long time. When the old shingles come off, homeowners should understand what is underneath, review the condition of the decking with their contractor and know how any necessary replacement will affect the project.

Saving money is always worthwhile, but cutting a corner that could compromise the life of your new roof rarely is.

Bob O’Donnell is the owner of O’Donnell Bros. Inc., a Bristol-based home improvement company established in 1975. Have a question? Email info@odonnellbros.com with the subject line “Ask the Pro.” For your remodeling needs, call O’Donnell Bros. Inc. at (860) 589-5155 or visit www.odonnellbros.com. Advice is for general guidance only.

Summer Humidity Problems Nobody Talks About

Every summer, homeowners start noticing strange things around the house: foggy windows, musty basement smells, peeling paint, damp air vents, or condensation showing up where it shouldn’t. It’s not your imagination. Your house is sweating.

Connecticut summers create the perfect conditions for humidity problems, especially in basements. When warm, moisture-filled air comes into contact with cooler surfaces, condensation forms on windows, pipes, vents, walls, and floors. Left unchecked, that excess moisture can lead to mold, water damage, poor air quality, and expensive repairs over time.

Basements are often the biggest trouble spot because they naturally stay cooler than the upper floors of a home. During humid weather, outdoor air sneaks inside through doors, windows, foundation gaps, and poorly sealed areas. Once that humid air hits cool basement surfaces, moisture forms quickly.

One of the biggest misconceptions is that basements simply “feel damp because they’re basements.” In reality, excessive moisture should not be ignored. Over time, high humidity levels can contribute to mold growth, warped materials, peeling paint, mildew, and damage to stored belongings.

Another common mistake homeowners make is opening basement windows during extremely humid weather in an attempt to “air things out.” Ironically, this often makes the problem worse by allowing even more moisture-heavy air inside.

In many homes, a properly sized dehumidifier can make a dramatic difference. Ideally, homeowners want indoor humidity levels to stay somewhere around 40–50 percent during the summer months. Anything consistently higher can start causing issues throughout the home.

Air conditioning also plays a major role in humidity control. Many people think of air conditioners as simply cooling systems, but they also remove moisture from the air. If a home feels cool but still sticky or damp, it may indicate that the system is oversized, not running properly, or struggling to remove humidity effectively.

Sometimes homeowners unknowingly create humidity issues themselves through simple daily habits. Long hot showers without proper ventilation, drying laundry indoors, poor bathroom fan use, and cooking without exhaust ventilation can all add moisture into the air.

Bathroom exhaust fans are another overlooked issue. Many older homes either have undersized fans or fans that simply vent into attics instead of fully outside the home, which can create an entirely different set of moisture problems over time.

Condensation around air conditioning vents is another frequent summer complaint. In many cases, this happens when humid air meets very cold ductwork or vents. While some minor condensation can be normal during extremely humid weather, excessive dripping or staining may indicate insulation issues around ductwork or poor airflow.

Homeowners should also pay attention to signs of exterior moisture intrusion during summer storms. Clogged gutters, poor grading, and improperly directed downspouts can allow water to collect around foundations, increasing humidity problems inside the home.

The good news is that many humidity-related problems are manageable once identified early. Proper ventilation, dehumidification, drainage improvements, and regular HVAC maintenance can go a long way toward keeping homes more comfortable and preventing bigger issues down the road.

Because while nobody wants their house to feel like a Florida greenhouse in July, your basement also shouldn’t smell like a forgotten beach towel by mid-August.

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.