Roof Damage Isn't Just What's on the Outside

I recently did work for a homeowner who was shocked to see black, rotten plywood underneath her roof. She never had a leak and wondered how there could be so much damage without any signs, other than an old roof that was deteriorating and needed to be replaced.

I see this problem a lot more often then you might think. In our area of Connecticut, 90 percent of attics don’t have enough insulation and aren’t properly ventilated. I meet people who need a new roof and want me to just replace the shingles to save money. What they don’t realize is how much deterioration exists where they can’t see. Once the plywood is exposed, warping, delamination, and rot from moisture usually come as quite a shock. 

So why does this happen? The issue is actually airflow. Attic ventilation allows your house to “breathe” by taking air in from the outside and letting air out from the inside. Too many homes that I work in aren’t properly ventilated and most have their bathroom and even dryer vents exhausting into the attic instead of outside. 

In order to have proper ventilation, your home needs a system that includes intake ventilation through the soffit or a new product called SmartVent which is installed on top of the roof near the gutter edge. Louver vents were typically used at an exhaust vent in the 1950s and 1960s but now ridge vents are more common. If your house has both louver vents and ridge vents, the louver vents should remain closed, otherwise, the louver will act as an intake vent and will only cool the top third of the attic. 

In the colder months, it’s not uncommon for me to see frost on attic plywood because of inferior insulation. Insulation and ventilation work hand in hand - the ventilation controls the airflow and the insulation controls the temperature. You’re probably familiar with insulation - it’s a cotton-looking fiberglass material that often comes in pink or yellow rolls. It can also be loose-filled into tough to reach areas with a blowing machine. Remodeling professionals put insulation between walls, in attics, and in basements to retain heat in the house in the winter and keep it cooler in the summer. However, without proper ventilation, insulation is just as susceptible to moisture and deterioration as plywood.

My customer never went up into her attic, so she didn’t notice the problem. What she thought was a simple roof replacement ended up being a bigger job simply because, after years of decay, the plywood she had was no longer strong enough to properly support the new roof. Ignoring the problem and laying new shingles over the existing plywood would have voided the new roof’s 30-year warranty.

The lesson for this week? If you’re going to reroof your home, make sure that the plywood is healthy and that your contractor has given you a thorough plan to ensure that your home is properly insulated and ventilated. It might cost a bit more today, but it will regulate the heat and cooling in your home, saving on energy costs and making you much more comfortable for years to come.

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.

A House That Can Breathe is Crucial To Its Health and Yours

I’m not shy about educating my readers on the importance of proper insulation in a house. But even if you’re one of only 20 percent of homeowners I meet with the right amount of insulation, chances are you’re still missing a critical piece of the puzzle. The missing component is ventilation and not enough of it 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 into our homes than any other time of year. We all know that heat rises, which means a lot of what we’re pumping into the house will quickly find its way through the ceiling and into the attic. 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 air flowing inside 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 feed on your insulation and rot the wood. If the attic is cold enough, the moisture will freeze into little domes or even icicles until the temperature rises enough for the water to thaw and then be absorbed into all the places that it shouldn’t. Neither is a good scenario.

So what’s the best way to protect your home? Start by investing in a hygrometer that 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, it’s going to be susceptible to mold, mildew and bacteria growth.

Remember, attic ventilation allows your house 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 that are installed underneath the overhang of the roof and take in the air and ridge vents that 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. Remember, it’s always a good idea to get advice from a professional before taking on a big remodeling project. 

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.

Keep Energy Bills Down In Winter With These Tips

Outdoor lights, Christmas trees, and colder temperatures mean that December is usually one of the most expensive months in terms of utility bills. But with the holiday season behind us, January is a great time to take a closer look at how much energy you’re using and address the issues in your home that are causing those high costs. 

One resource that not enough people take advantage of is an energy audit by Energize Connecticut. For a fee, a home energy consultant will come to your home and conduct a full assessment, covering your furnace and water heater, air ducts, windows, doors and more. Plus they can offer rebates for upgrades and repairs. To apply, visit the EnergizeCT website and choose your service provider.

If you’re not in the market for an assessment would still like to enjoy some serious home energy savings, here are the top five spots I always check for air leaks and heat loss. 

1. Windows. Believe it or not, hanging heavy fabric drapes can help you retain up to 25% of the heat in your home. This is especially true with large glass doors that aren’t being used in the winter months. Also, be sure to check for gaps. Wooden window frames get warped with age and can lead to serious air leakage. For cracks that are smaller than a quarter of an inch, a silicone caulk will work to plug up areas where heat is escaping. Also, if you feel air coming right through your single panes and the glass rattles with the wind, beef them up with some shrink film. This product can be found at any home supply store and can be cut to fit any size. 

2. Doors. We don’t often open the windows in the winter, but doors are a different story. They let lots of air escape, but they can’t be sealed completely because we need to use them. I always suggest inspecting your door sweep to ensure it’s not damaged and replacing it if the bristles have come loose. A door snake or seal can also come in handy, which can be purchased at any big box store or even made at home with an old pair of stockings and some rice, beans, newspaper or another filling.

3. Attic. Those of you with an attic hatch are likely losing a ton of warm air through its frame. We all know that hot air rises, so seal up that hatch with heavy duty plastic, or build yourself an insulated box to fit over the entryway if you still need access to storage. 

4. Water Heater. Insulate your water heater’s tank and pipes with fiberglass. For the tank, fit a fiberglass blanket using foil tape, but be sure not to cover any valve or pipe openings. For the pipes, you can use fiberglass wrap or foam insulation. By adding a layer of insulation to your water heater, you’ll keep the warmth from escaping into the air and you’ll protect the machine from condensation in the warmer months. 

5. Insulation. Most homes simply do not have enough insulation in the walls and attic, which is probably the number one contributor to sky-high energy bills. Insulation acts as a barrier against heat flow, helping to keep the warm air inside the house by slowing the flow and stopping the heat from getting outside. The United States Environmental Protection Agency says that with proper insulation, the average home in our area can save approximately 16 to 50 percent in total heating and cooling costs depending on the age and condition of the home. Plus it’s one of the highest rated home improvements in terms of real estate resale value. 

Happy New Year Everyone! Here’s to a warm, happy and healthy 2020!

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.