Adequate Attic Ventilation Can Reduce Your Home’s Risk of Winter Damage

Schedule Now

You may not know it, but a lack of attic ventilation could be putting your home at risk of all kinds of damage. Namely, damage from increased moisture compromises the building’s structure without an effective attic ventilation system in place.

Further damage may result from mold growth and ice dams. Learn how attic ventilation improves conditions within the home.

Moisture and mold

During the heating season, moisture control is essential. Moisture in the attic not only leads to damage to the wood structure, causing wood rot, but it eventually leads to the growth of mold in the space, a hazard to home occupants’ health and the health of the attic. Here’s how moisture develops in the attic:

  • When warm, humid air from the interior of the home is able to access the attic, the warmer air condenses when it meets the cooler attic walls and other spaces.
  • This warm air holds more moisture than the cooler air around it, which is released as water vapor and then accesses the dryer, porous wood in the attic.
  • Without ventilation, this condensation builds up, eventually rotting wood, compromising the sub-roof, causing exterior paint to peel and more.

Ice dams

Ice dams are another concern that results from lack of ventilation. Without a means to move heated air out of the space, the attic’s temperature becomes uneven. The much warmer temperatures at the peak of the roof allow snow and ice that form there to melt, which refreezes once it reaches the cooler temperatures at the edges of the roof. This dam of ice causes any water that’s trickling down the roof to back up, penetrating beneath the shingles and possibly resulting in moisture damage to the home, mold problems and more.

During the winter season, effective attic ventilation prevents moisture problems and heat buildup that leads to ice dams. An added perk: It prevents heat buildup in summer that greatly increases energy costs. Schedule a free home consultation with the experts at Apollo Home Heating, Cooling and Plumbing to find out if your attic ventilation requires an upgrade. We’ve served homeowners in greater Cincinnati since 1910.

Image via

"Ernie & Mike did a superb job on my new furnace and A/C installation. Despite having more than a day’s work to do, they came in and stayed until the job was done. They were organized, efficient, and protected the rest of the house well. Got both furnace and A/C installed the same day. Ernie was courteous, informative, and clearly knew his job better than anyone I’ve encountered before. The units look so good guests now get The Tour of our new system. Apollo is clearly not a fly-by-night company. I would recommend them to anyone in need of a new furnace and/or A/C."
- Jerry A.
"I called Apollo because of a water leak I thought I had in our upstairs shower going into the kitchen. Robbie came and assured me everything was fine & looked at all the other plumbing. He ended up changing a few pipes for our washer & clearing a drain. He was very nice & knowledgeable with all my questions. I ended up signing up for the care plan & was very happy with my service."
- Cassandra B.
"The team at Apollo exceeded my expectations. As a business owner, my attention to the details and commitment to providing excellent service is high. From the sales rep. to the installation team, everyone’s performance was outstanding. For example, the installation team went to great lengths to protect our floors, placing floor runners and across the wood floors and up the stairs. They even were spot washing walls upon their departure. I highly recommend this company."
- Randy B.
"We scheduled an estimate AND a tune-up. We knew something was wrong with our furnace, but hoped we could make it through the rest of the season. Upon telling Bill what our furnace was doing, he warned us immediately what the possible outcome was going to be; a cracked heat exchanger. He watched the flames roll backward, tested carbon monoxide levels, which were so high they meter’s last reading was 5,600 before saying “high”. He immediately shut it down, tagged it, and explained that with levels that high and children in our home he wanted off right away. He continued his inspection and showed us via a camera that not only was it cracked in multiple places, but had holes all over it. He gave us a few options for repairing it; his knowledge as well as genuine concern was beneficial and refreshing. Luckily we also scheduled an estimator, Micah, to come too and we were able to get costs between repairing and replacing (with several options). We decided to replace with a much higher efficiency furnace and one sized properly to our home. Hands down, not only did they both provide us great service and knowledge, but without sounding dramatic, they may have saved our lives. This was our first time calling Apollo, but it won’t be our last."
- Sarah B.
"Apollo is an excellent company. I always receive great service. Alex A. was professional and friendly. He kept me informed during the process of checking my furnace and heat pump to make sure they were working properly. The company makes sure you are notified who is coming and when they are on the way. All my interactions with the company have been wonderful."
- Beverly S.



    Apollo Care Plan