PAC Offers Ventilation Products for the Commercial Market


Petersen Aluminum is pleased to offer its line of SS Airflow systems, designed specifically with commercial buildings in mind. Highly suitable for both shingle and metal roofs, the system allows for balanced intake and exhaust ventilation to provide optimal airflow, greatly increasing the roof’s longevity and energy efficiency.


Petersen offers a complete line of ventilation products, which in unison, provide consistent airflow under the roof covering:


  • PAC SS Vented Eave
  • PAC Eco Eave Vent
  • PAC SS Rake Fascia/Rake Panel
  • PAC SS Ridge Vent



Plain and simple, proper airflow designed into the roof structure will extend the life of the roof. Premature re-roofing is expensive, and inconvenient to the building occupants. Without consistent and balanced airflow and proper NFA (Net Free Area), moisture build-up will occur, which can damage the roof covering over time. Temperature fluctuations will cause snow melting and refreezing, resulting in ice dams on the roof that can cause structural damage as well as hazards to life and property on the ground.


In addition, providing constant air movement prevents heat build-up in the summer and heat loss in the winter, resulting in a more sustainable building with lower operating costs.


PAC SS Airflow systems, designed specifically for ventilation needs at the eave and the ridge of each project, contribute to the green roof system for superior sustainability and life-cycle value.

PAC SS Ridge Vent – Standing Seam

PAC SS Eave Vent – Nailbase
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