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  Cor-A-Vent V-400E Ridge Ventilation System
• Our NEW V-400E - with enhanced snow screen
• V-400E - Certified 17 sq. inches NFVA per foot
• Exceeds all national building codes for ventilation
• Easy to handle 4' pieces - 12 pieces (48 l.f.) per carton
• 2 1/2" roofing nails & 4 end caps included with V-400E
• Can be applied on hip roofs
• More flexibility on steep pitch roofs - now works on 16/12 pitch
• Solid base provides a weather-tight seal under vent
• Cuts with a utility knife - no waste
• "Live" flexible hinge - makes it easy to match roof pitch
• Leaves a well defined ridge - "no hump or domed shaped" peak
• Won't crack or shatter in cold weather application
• No baffles to clog with leaves or pine needles
• Proven by 30+ years of "On the Roof Performance"
• Lifetime Warranty
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Key Benefits
• 17 sq. in NFVA per lineal foot
• Enhanced Snow Screen™ design to prevent fine blowing snow from entering the vent
• Can be used with shingle and metal roofing applications
• Use on  all slopes from 3/12 to 16/12
• 2 widths to choose from:  11" and 8 1/2"
• Made from heat resistant polypropylene
• Crush proof design
• Can be used with Asphalt Shingle and Metal Roof applications.

General Installation Instructions
For dimensions open the End View 1 PDF & End View 2 PDF files.
For dimensions if you have AutoCad open the End View 1 DWG & End View 2 DWG files.


You can also view our "Balanced Ventilation How it works" FAQ sheet.
V-400E Brochure click here.
Frequently asked questions (FAQ) click here.
Click here for our complete list of Technical Drawings.

Product Packaging and Shipping Information
Pcs per Unit Accessory Items Included Shipping Weight per Box
12 - 4 foot pcs 2 1/2" Nails & 4 End Caps 30 lbs

 
Figure your Ventilation Needs
Enter your Square footage of your building footprint below and click "Calculate" to find the amount of Lineal Feet of V-400E you need for your project.

Specify your vent ratio:
1/300 ratio 1/150 ratio
Building Footprint : sq. feet.      

You need Lineal feet of V-400E.

Note: Remember to provide balanced soffit ventilation also.  
 
 
 

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