Leaks Around the Chimney? Blame it on the Squirrels

I received a question from a reader that I wanted to share with you. She asked: 

Dear Bob, I've had some leaking around my chimney. I thought this didn’t seem very strange considering all the snow we’ve had, but when we went to take a look at it, we noticed lots of small holes around the flashing. What would be the cause of this? - Dot B.

Dot, this is a great question and I have received so many calls about it recently so you’re not alone. Believe it or not, the culprit of the small holes around your chimney flashing is squirrels. Flashing is often made of lead, which is a soft metal that squirrels feast on because it supposedly has a sweet taste. More practically, it also helps our rodent friends gnaw down and control their fast-growing teeth. Then, of course, there is the warmth that is escaping from your attic which makes for a pretty cozy place to spend these cold winter days.

Of course, we all know that lead is poisonous, so squirrels chomping down on your flashing is very likely going to kill them in addition to opening up your roof to potential leaks. Flashing bridges the gap between the chimney and your roof, creating a watertight barrier. If it’s damaged, water can easily get into the attic and eventually down into the home. So I’d suggest dealing with the problem right away before it becomes more costly and complicated.

One simple DIY method is to cover the flashing with the taste that squirrels hate the most - capsaicin, the active ingredient in cayenne pepper. You can mix pepper sauce or powder with water and spray it on the affected areas which will deter them in the short term. Of course, a cheap and easy solution like this also has its drawbacks, and in this case, you’ll be pulling out the ladder again every time it rains or snows. 

You can also try deterring the squirrels from your roof by cutting back the branches and trees that make it easily accessible to them. Also, if food is more readily available, they are going to follow the path of least resistance. So fill up those wildlife feeders and keep them at a distance from your house.

If the pests persist, I recommend getting a professional to cover your current flashing with heavy duty copper which is neither attractive nor penetrable. Investing in one of these simple solutions will save both your home and your furry friends from an untimely demise.

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 www.odonnellbros.com. Advice is for guidance only.

Let Your House Breathe and Say Goodbye to Dangerous Moisture

You hear me talk a lot about the importance of insulation in the home, especially at this time of year and with our recent, frigid temperatures. But even if you’re the one in every four houses I visit that actually does have the right amount of insulation, chances are that your ventilation is inadequate, which can be harming both your home and your personal health in more ways than you think.

In the winter, we crank up the thermostat, sending more heat and moisture into the living quarters of our homes. We all know that heat rises to the top, which means a lot of what we’re pumping into the house will quickly find its way through the ceiling and into the attic. Now, think about when you’re in a car and the windows fog up. What do you do? Usually, you’ll increase the airflow either by using the vents or just cracking a window. A house works much the same way, except that if you don’t have airflow in the attic, the heat and moisture just gets stuck there. If the attic is very warm, that moisture will develop into mold and mildew which can fester in your insulation and rot the wood. If the attic is cold enough, the moisture will freeze into little domes or even icicles until the temperatures rise enough for the water to thaw and then be absorbed into all the places it shouldn’t be going. Neither is a good scenario.

So what’s the best way to protect your home? Start by investing in a hygrometer which measures water vapor in the air. A comfortable humidity reading is 30-60%, but 45-55% is an ideal level to maintain. If you’re seeing higher than 60% humidity in any area of your home, you’re going to be susceptible to mold, mildew and bacteria growth.

Remember, attic ventilation allows your home to “breathe” so you want to balance your intake and exhaust to ensure that what is coming in is going out equally. The best ventilation system will include soffit vents which are installed underneath the overhang of the roof to take in the air and ridge vents which are installed at the top of the roof for the hot air to escape. For this method to work efficiently, all louvered vents must be sealed off and you have to ensure that your insulation isn’t blocking the airflow. Believe it or not, most roof manufacturers will void the warranty if a proper ventilation system is not installed. Luckily, new roofing technology enables contractors to add intake ventilation directly into the roof as opposed to using soffit vents so if you’re in the market for a new roof, be sure to ask for that option.

It’s important to note that homes have different characteristics and what works well for one may not work well for another. With the right balance of air, homeowners can optimize their roof and maintain the overall health of their home and their families, but it’s always a good idea to get advice from a professional before taking on a big remodeling project. Stay warm friends.

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 www.odonnellbros.com. Advice is for guidance only.

Don’t Hesitate, Insulate and Ventilate

I have to admit that I’m a big fan of the winter. I love skiing, playing ice hockey and hiking in the snow, but what I don’t love is coming home to a cold house. It’s around this time of year when I start to get calls from people all over town wondering why their home is so drafty and freezing when they’re paying a fortune in heating bills. The answer to their question is almost always a lack of insulation. Unfortunately, over 75% of houses in our area are under-insulated which means that heat is quite literally going through the roof.

Insulation is a cotton-looking fiberglass material bundled in pink or yellow colored rolls that you may have seen in your attic or behind the wall of new construction. It also comes in what we call “loose fill” which can be blown into harder to reach areas. Contractors use insulation between walls, in attics and in basements to retain heat in the house in the winter and keep the heat from getting into the house in the summer. The amount of insulation needed for a home is measured by its R-Value, which equates to its resistance to heat moving through it. Simply put, the higher the R-Value, the better the insulating properties.

Back 50 years ago when many of the homes in Central Connecticut areas were built, R-Value wasn’t a popular unit of measurement. Instead, they kept it simple and measured insulation by its thickness in inches. When a home was constructed, the contractor would put about three inches of insulation into the attic, if any was used at all. Three inches of insulation would give that homeowner an R-Value of about R-10. According to EnergyStar, homes in our area should be fitted with insulation that measures between R-49 and R-60. So if you have a home from the 50’s or 60’s and have never done an upgrade to your insulation, your home is definitely not equipped to handle our harsh Connecticut winters.

If you’re one of those homeowners scratching your head, trying to figure out why the house is so cold, take a trip up into the attic. Chances are your insulation isn’t up to scratch and it’s probably time for an upgrade. As a general guideline, insulation with an R-Value of between R-49 and R-60 will sit at between 19 and 22 inches thick when settled. How does your insulation stack up to that? If it doesn’t, you don’t have to worry - insulation is easy and inexpensive to install and has one of the highest resale values of any home improvement job going.

With any proper insulation job also comes ventilation, which allows air to move through the attic, preventing over and under heating and reducing the risk of mold buildup. We will talk about that in detail next week.

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 www.odonnellbros.com. Advice is for guidance only.