June Lesson Plan

ARMA Technical Bulletin: Considerations in Attic Ventilation System Selection

This document, published by The Asphalt Roofing Manufacturers Association (ARMA), takes a deeper dive into the considerations when evaluating an attic’s ventilation needs

Key takeaways from Considerations in Attic Ventilation System Selection:

Attic ventilation fights heat, moisture, and ice dams

• To work properly, attic ventilation should be balanced with intake and exhaust airflow

• Do not mix different types of attic exhaust vents on the same roof above a common attic.

There’s also a review of the various attic design configurations in the field: insulation at the underside of the deck, insulation at the floor of the attic, and conditioned attics.

Access the document here:
Considerations in Attic Ventilation System Selection

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