This may not be something you often think of, but the ventilation in the roof system is important and unique to every home. When ventilating the roof, it is necessary to consider factors such as climate and roof/ceiling design.
Proper ventilation can keep the airflow through the bottom of the roof consistent, thereby preventing the accumulation of heat, cold and moisture under the roof according to the season.
In winter, proper ventilation helps to keep the roof temperature low and avoid the formation of ice dams from melting snow. In addition, any moisture generated by the warm internal living space is discharged. Lack of ventilation will trap cold air, causing moisture accumulation, mold and mildew, which can damage roofs and drains.
In summer, poorly ventilated roofs can cause extreme heat and moisture accumulation in the attic space, which can cause various problems, including warping and damaged shingles. Over time, too much heat will also make the roofing material age prematurely.
A well-ventilated attic will not only extend the life of the roof, but also help reduce energy costs. When the outdoor temperature rises, a properly ventilated roof can let the heat dissipate, thereby reducing the workload of indoor fans and air conditioners. In general, reduce your energy consumption.
Properly ventilating the roof during installation is essential to prevent problems caused by seasonal weather patterns.