10/22/2026
Yes, a roof keeps the rain out. But it also deals with heat and moisture that build up within the assembly.
Without proper ventilation, hot air and moisture can become trapped in the roof space and that can contribute to condensation, elevated temperatures, material degradation, and reduced roof-system performance.
Proper ventilation helps create a pathway for air to move through the assembly, allowing heat and moisture to escape. The Viper Ridge Vent was created to do just that: https://keenebuilding.com/products/viper-ridge-vent/
It's not the most visible part of a roof system, but it can have a very visible impact on how the system performs over time.