Proper attic ventilation is one of the most critical, yet overlooked items required for healthy roofs. Poor ventilation can cause numerous problems that may result in serious roof damage, even though it may seem to be unrelated. It is also one of many reasons why it is necessary to hire experienced roofer services that understand the importance of proper attic ventilation and the problems that can occur without the right system.
Proper Attic Ventilation Is Essential
Every attic serves as a critical buffer space that helps regulate the temperature under the roof. By maintaining a temperature that is lower inside than outside, the attic can help the external materials function effectively in all types of weather. Yet for this to happen, there must be adequate airflow moving through the attic space to control the temperature and humidity under the decking.
Proper ventilation lets homeowners enjoy improved energy efficiency when homes stay cooler in the summer and warmer in the winter. Air moving through the attic keeps temperatures at a mid-range between the living space and the roof. This prevents the accumulation of condensation, which can lead to mold growth and poor indoor air quality.
It also prevents many of the serious and damaging conditions that affect roofs when the temperature in the attic gets too hot. Considering the important role that attic ventilation plays in the life of a roof, experienced roofer services know ventilation is key to a healthy roof and the avoidance of costly damage.
How Poor Ventilation Damages Roofs
There are a number of ways that poor ventilation can result in serious damage to home roofs as follows:
- Mold and Mildew - Condensation is one of the main concerns if there is inadequate ventilation under the roof. Without enough airflow to keep moisture levels down, condensation can encourage the growth of mold and mildew on attic surfaces. Mold growth can destroy indoor air quality and even make some people sick.
- Rotting Wood - In addition to mold and mildew, condensation can cause wood rot under the roof decking or on the support structure. Over time, this damage can be extensive. It can overtake the trusses and beams that hold up the entire top of the house, making expensive repairs by roofer services necessary.
- Shingle Damage Due to Overheating - Lack of ventilation can also cause temperatures under the roof to get so high that it affects the shingles from the underside. A hot attic can cause buckling and bubbling and even loosen and lift shingles off the decking, making them more prone to leaks or being blown off in high winds.
- Ice Damming - In areas with snow, poor attic ventilation may cause ice damming. This occurs when the underside of the roof is hot while the temperatures outside are cold. Snow melting and refreezing can work its way under the shingles, cause them to spread and lift up, and create leaks.
Left unresolved, ventilation issues can cause extensive damage to all kinds of roofs. Fortunately, all such problems can be avoided by improving airflow in the attic space. This is usually done by installing the appropriate type and number of attic vents to provide increased airflow to reduce temperature and humidity.
Homeowners who have experienced any of these issues or have noticed moisture in their attic should arrange an inspection with roofer services to determine the cause and decide if their attics need additional ventilation. Resolving attic airflow problems today will ensure a longer lasting, healthier roof in the future!
