The Importance of Attic Ventilation

Attic ventilation is important for so many reasons. Many homeowners don't recognize they have a problem until a roofing professional points it out. Poor attic ventilation can lead to costly roof problems that may go unnoticed until it's too late.

What Is Attic Ventilation?

Your attic's ventilation system allows your house to breathe. A properly ventilated attic allows air to flow in at the lowest point and escape at the highest point. Ventilation helps address excess heat and moisture that can otherwise wreak havoc on your home. It helps protect the roofing system from the inside out in virtually all climates and weather conditions. Your attic's ventilation system works by pulling fresh air in and allowing the heat to escape through your vents. In Texas, where we have both cold and warm weather depending on the month, poor ventilation can quickly lead to a variety of problems.

The Effects of Poor Attic Ventilation

1. Energy Efficiency - In warmer months, hot air can get trapped in the attic if not properly ventilated. Excessive heat in an unventilated attic can cause your AC unit to work overtime and lead to higher energy bills. The temperature in rooms below your attic will be uncomfortably hot and you end up spending money on a problem your extra AC usage won't be able to fix.
2. Moisture Damage - Humidity and moisture may get trapped in your attic and lead to a variety of problems. Over time, that excess moisture can cause damage and deterioration of the roof system, interior structural elements and insulation. It can also allow mold and mildew to grow and flourish.
3. Ice Damming - In colder months, heat from the home's interior can collect in the attic. Snow on the roof should melt slowly and naturally as the outside temperature increases. When warm air in your attic causes snow and ice on your roof to melt too quickly, the water runs down the cold eaves towards the gutters where it refreezes. The ice causes a blockage that can send water back up and under your roof and cause damage to the attic, ceilings and walls. Proper ventilation allows cool exterior air into the attic to reduce that interior heat build up that can lead to ice damming.
4. Roof Lifespan - Your roof's lifespan is how many years the roofing system and materials last. If your attic doesn't have proper ventilation, the trapped air, moisture and heat can cause extensive damage to your roof and shorten your roof's lifespan. The last thing you want to do is invest in a roof only to have it ruined because your attic was not checked for proper ventilation.

Signs of Poor Attic Ventilation

A poor attic ventilation system can cause a variety of problems. As a homeowner, these problems may grow and lead to bigger problems and expensive repairs. It's important to contact a professional roofing contractor, such as Corey Construction if you notice any of the problems below:

1. You notice an unexpected increase in your household heating and cooling bills.
2. Problems with your HVAC system require the need for frequent repair visits.
3. Noticeable buildup of ice can be seen along your roof edge during colder weather.
4. Your roofline and shingles have a wavy or rippled appearance. This could be a sign of warping caused by moisture-damaged decking below.
5. You see dampness, water stains and/or frost on the attic side of your roof sheathing.
6. Evidence of deterioration. rot and decay of the roof's structural supports or other wooden components are found in the attic.
7. Those living in your home experience uncomfortable allergy systems or respiratory illnesses. This could sign mold growth in your attic.
8. Rusted or corroded metal components are found in the attic such as nail heads, electrical boxes, light fixtures and/or HVAC components.
9. Heat radiates from your attic.
10. Your soffit vents are clogged or blocked by debris.

There are many reasons a well ventilated attic is important when it comes to your protecting your home and roofing system. Whether you want to avoid costly roof repairs or simply want your home to be as energy efficient as possible, a properly ventilated attic is a must. It plays an essential role in maximizing the life of your roof. If you're local to Texas, don't hesitate to contact Corey Construction if you think you have a ventilation problem. We've been serving customers since 1999 and will make sure that all of your ventilation issues are resolved. Contact us at 855-752-6739 or email us for assistance.

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