This technical bulletin "Attic Ventilation Best Practices for Steep Slope Asphalt Shingle Roof Systems" is the result of the work of the ARMA Ventilation Task Force. It highlights important best practices including:
- Balance the system with INTAKE and EXHAUST vents.
- DO NOT mix different types of exhaust vents.
- When reroofing DO NOT reuse the old vents. Replace them with new vents.
Read the full article: Attic Ventilation Best Practices for Steep Slope Asphalt Shingle Roof Systems