Specification

Master Flow
®
Power Attic Vent – Roof Mount
ERV4, ERV5, & ERV6 Basic Specification Sheet
ERV4
 For attics up to 1,600 sq. ft.
 1,000 cubic feet per minute airflow
 Adjustable thermostat
 Colors: Mill, Black, Brown, Weathered Wood
 5-year ltd. warranty with 2-year Labor Plus Protection**
ERV5
 For attics up to 2,200 sq. ft.
 1,250 cubic feet per minute airflow
 Adjustable thermostat, optional humidistat available
 Colors: Mill, Black, Brown, Weathered Wood
 Optional humidistat/thermostat available
 5-year ltd. warranty with 3-year Labor Plus Protection**
ERV6
 For attics up to 2,800 sq. ft.
 1,500 cubic feet per minute airflow
 Adjustable thermostat, optional humidistat available
 Color: ShingleMatch
™
Weathered Wood
 10-year ltd. warranty with 5-year Labor Plus Protection**
** See Master Flow
®
Powered Ventilation Products Ltd. Warranty for complete coverage and restrictions
Total Attic Size
(Sq. ft.)
Recommended
Power Attic Vent
Minimum Intake Ventilation Needed
(Net Free Area in Sq. in.)
Up to 1600
ERV4
480
Up to 2200
ERV5
600
Up to 2800
ERV6
720
Note: Always have a balanced attic ventilation system. In no case should the amount of exhaust ventilation exceed
the amount of intake ventilation. Always ensure there is proper intake ventilation at the soffit, undereave or fascia areas
of the roof. Visit www.gaf.com/ventcalculator for more information.
© 2016 GAF
 Cool The Attic… Help remove hot and humid air from the attic
 PSC Motors… Permanent split capacitor motors provide enhanced efficiency
 Resists Infestation… Heavy-duty internal screen helps prevent animal infestation
 Weather-Resistant… Pass the 110 mph wind-driven rain test*
*Under controlled laboratory testing
Miami-Dade Product Control Approval
Texas Department of Insurance
Florida Building Code
UL Listed in US & Canada