Understanding and Preventing Roof-Related Condensation

Most of us have experienced the following sensation during summer: You pour yourself a nice cool glass of water or a soda with ice in it, and almost immediately notice beads of moisture collecting and running down the outside of the glass. This is a process called condensation, and it’s a common, everyday moisture behavior.

At Knockout Roofing, we’re here to tell you about how condensation can be a problem when it comes to your roofing solutions in your home or building. Let’s go over why this is the case, how condensation can impact your roof, and how you can take the right steps to prevent it and avoid significant residential or commercial roofing repairs as a result of condensation.

understanding preventing roof condensation

Why Condensation is a Problem

In the roof area, condensation takes place due to warm air that escapes from the living space up into the attic or even simply just out of the roof. The right temperature imbalances can make it even more common.

And when condensation takes place in or around the roof, it has several potential issues associated with it. For one, it’s a primary precursor to mold and mildew formation, which can impact everything from air quality and human health to structural integrity. That’s not the only way condensation can wear down the roof, either – the warmth that comes up from inside the structure can even melt the bottom layer of snow that’s sitting on your roof, leading to water running down your eaves and freezing. This leads to ice damming and water backups, which can damage several parts of the home and lead to significant additional concerns. It’s clear that condensation buildup is a significant risk.

Prevention Tactics

Luckily, there are two simple areas you can prioritize to keep condensation from causing any of the issues listed above:

  • Ventilation: The primary combatant against condensation is proper ventilation in the roof and attic area. While it’s vital, of course, to insulate this area and protect it from any water passage, it’s also vital for natural air circulation to be possible that allows warm air to circulate. Most areas require at least one square foot of venting per 300 square feet of attic floor space, but check yours to be sure this is the case. We generally recommend an even split of ridge and roof vents, allowing natural wind movement to pull warm air from the attic while intake vents bring in new air.
  • Block heat and moisture: It’s easy for warm air to get into the attic through bad light sealing, poor chimney access, bathroom exhaust fans or several other areas. To stop this from happening, ensure your various exhaust vents are routed outdoors, plus have leaks sealed and insulated properly. We recommend blown-in fiberglass insulation, which will expand and contract as needed based on temperature while allowing for good ventilation.

For more on condensation and how to stop it from becoming an issue for your roof, or to learn about any of our roofing services, speak to the staff at Knockout Roofing today.