Ventilation is Key To Your Home's Health

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 key piece of the puzzle. The critical 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 humidity gauge 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.

Don't Let a Chimney Leak Ruin Your Roof

Of all the places on a roof to have a leak, the chimney is one of the most common. Because it sits up above the roofline, it’s also the most susceptible to damage from harsh winter weather, wind, and rain. While it might seem like a tough task, waterproofing a chimney is actually a pretty simple project, as long as you’re comfortable on a ladder. Here are my tips to tackle the job. 

To seal your chimney, the first thing you’ll have to do is measure the surface area. Take care to measure all sides and add the measurements together to find the total surface area. This will help you to determine how much material you will need. 

Now, it’s time to clean. Your chimney will most certainly have mold, dirt, rust, and stains on it, and you’ll want to remove them before starting the waterproofing process. I like Chimney RX Safer Brick and Masonry Cleaner which you can use instead of muriatic acid for the same cleaning power without the harsh fumes or risk of burns. Applying the solution is easy, just use one part cleaner with four parts water and apply to the area with a pump sprayer. You can then either scrub the surface or use a power washer to remove the debris. Let everything dry for at least 24 hours before moving on to the third step. 

Next, you can start to prepare the area for any potential repair work. You don't want to damage your roof and shingles when waterproofing your chimney, so use a canvas drop cloth to cover the area as plastic can get very slippery. Make sure to cover over any windows or skylights that are in reach as well. Once waterproofing overspray has been applied, it will be incredibly difficult to remove. 

If you have minor cracks in the chimney, now is the time to fill them. Chimney RX makes a Masonry Crack and Joint Sealant that works really well on small cracks up to one-eighth of an inch. It simply paints on and then dries a milky white color. However, if you have larger cracks or if you need any part of the chimney rebuilt or tuckpointed, I highly suggest calling a professional to manage the repair.

Once minor work has been completed, you’re ready to apply the waterproofing agent. Again, ChimneyRX makes a Water Repellent that’s great for the job. No matter what you use, be careful. Most people don’t realize that there is a difference between water repellent and sealant. A sealant will form a hard surface, trapping water inside and making the area susceptible to leaks, whereas a repellent will still enable the porous bricks to breathe and move the way they are supposed to. 

Applying the sealant is as easy as the cleaning step - all you’ll need is a pump sprayer with a fan nozzle. The product that you use will give instructions for the amount that you’ll need, so just go by your surface area and the directions provided. I always suggest starting from the base and working your way up, applying heavy coats using a side to side spraying motion. Unlike painting, it’s a good idea to apply a “flood coat” first and then top it up with a second coat within just a few minutes to even it out. For areas that feel oversaturated, have a soft bristle brush handy. Also, be sure you’re working in good weather - while waterproofing products do dry quickly, you’ll want to give them a good six hours in the sun to fully set before a bout of bad weather. 

Finally, just like any job on a roof, please make sure you’re comfortable with heights and working from a ladder before you tackle this project. The last thing anyone wants is a trip to the emergency room from a nasty fall.

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.

Moldy Siding? Don't Leave It Alone

Here in this part of Connecticut and in most of New England, vinyl siding is a popular cladding option for many homeowners. Starting in the 1950’s, it became a favorite aluminum replacement for its low maintenance and high durability. With a wide variety of colors and textures, it continues to be a fantastic option, offering personalized style without having to worry about sanding, painting, or major maintenance. 

While vinyl siding is beneficial in so many ways, one complaint is the potential for mold growth, often on the north side of a home. To be clear, mold can grow anywhere, but the north side is the most susceptible because it gets the least amount of sun exposure. Mold, mildew and fungus thrive in dark, damp places, which is why the north side of any home is generally the most vulnerable. Constant shade, high vegetation, or anything that stops a house from getting regular sunlight is an invitation for mold to grow in that area, whether it’s clad in vinyl or not.

In addition to a lack of sunlight, excess moisture is another mold inhibitor. The cause could be as simple as trapped rainwater that’s unable to drain properly. Another possible issue could be a faulty drain pipe or a gutter that’s dripping on the siding, causing constant dampness. Either way, a moisture problem is something you’ll definitely want to deal with as the water will continue to feed the mold, which will then spread. 

Another reason for mold growth on siding is a build-up of dirt, which is actually a food source for all different types of fungus. Something as simple as a dryer vent can cause dirt and dander to stick to the siding. Tree sap is also common and can be tough to remove. Homes on high traffic roads tend to get dirty more easily as well. All of these causes quite literally make a meal for mold spores to feast on.

So what can you do to keep mildew at bay and ensure your vinyl siding looks great for years to come? Assessing your sunlight and moisture exposure is key, but what if you don’t want to cut down a tree or you happen to live in an area where moisture is a problem? A professional will be able to inspect your siding and treat the mold using a cleaner and blocker that removes spores and keeps them from coming back. It’s important to use a specially designed cleaner that is strong enough to tackle mold but not too harsh that it will damage the house. You also want to be careful not to use any bleach-containing materials so as not to harm the vegetation surrounding your home. 

Once your house is cleaned, be sure to maintain your vinyl siding by assessing your home for moisture, treating leaks promptly, and keeping your gutters clear and free of debris. An annual inspection will help to ensure that any problems are dealt with promptly so they don’t get out of control. 

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.