Industry News

Roof Assembly Ventilation Coalition

Increasingly Air Vent is hearing folks question if it’s really necessary to vent an attic. “Why not seal the attic and not worry about venting?” is what we are hearing because some research is making the claim it may not be necessary to vent.

Through the Asphalt Roofing Manufacturers Association Air Vent (and many of our fellow vent competitors) are pooling our resources to combat this argument. We’re organized under the “Roof Assembly Ventilation Coalition” under the arms of ARMA.

Read more about the debate to ventilate attics in this white paper prepared by RAVC:
Debate over Sealed Attics vs. Ventilation Intensifies Amid Calls for More Scrutiny

To learn more about visit the Roof Assembly Ventilation Coalition website.

Before;
Unbalanced

After;
Balanced

Air Vent Case Study: Balanced Attic Ventilation vs. Unbalanced Attic Ventilation

Air Vent partnered with Risk Management and Engineering to study a house in Mansfield, TX (a suburb of the Dallas-Fort Worth Metroplex) analyzing temperature readings in 30 different attic and living space locations. On both the “before” (unbalanced attic ventilation) and the “after” (balanced attic ventilation) test days thermo-graphic photo readings were taken during 12-hour periods on days with similar maximum outdoor temperatures and solar insolation (the radiant heat energy from the sun that heats the roof deck).

The unbalanced attic consisted of a mix of ridge vents and electric power fans without intake ventilation. The balanced attic consisted of electric power fans repositioned for maximum efficiency and Air Vent’s new Edge Vent™ – a shingle-over intake vent.

Read more about the case study in a three-page “Executive Summary” (PDF 76k)* authored by the 3rd Party RME or our one-page “quick hit” summary (PDF 1MB)*.

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