Product Brochure
22
Intake Ventilation
Soft/Undereave 
Vents
Master Flow
®
 offers a full line 
of easy-to-install options for  
providing critical intake  
ventilation at the soft or 
undereave portion of the roof.
• Versatile... All-purpose intake ventilation
• Easy Installation... Pre-punched nail holes
• Excellent Design... Surface-mount design makes installation 
a snap
• Corrosion Resistant... Screened aluminum construction
EAC
Our Most Popular Aluminum Soft Vents
EmberShield
®
Closeable Soft Vents
During wildres, embers are often carried about by the wind. Once 
airborne, these embers can be sucked into a home’s attic by way 
of unprotected soft vents, causing extreme re risk and potential 
property loss.
Vent Closed
Vent Opened
• Protects... When closed, EmberShield
®
 Closeable Soffit Vents 
help prevent wildfire embers from being drawn into the attic
• Intelligent Design... Allows homeowners or first responders to 
close the vents during a threat of wildfire
• Easy to Use... Opens and closes with typical extension poles or 
broom handles
• Versatile... Paintable, if desired, and installs on new construction 
or retrofit applications










