While walking around the house, I noticed a couple ShingleVent® IIboxes laying around, so I thought I’d look into them a bit and see what they were all about.  The ShingleVent® II is a ridge vent that gets installed on the peaks of roofs.  The point of the vent is to allow exhaust ventilation along the roofline, end-to-end.  This vent theoretically works in conjunction with the Soffit air intake to “exhaust” the attic.

I like to check up on the materials that are going into the house, just be sure that the right stuff is being used.  I have to live there a long time, and the fewer headaches I have over time, the better!  The ShingleVent® II does have a lifetime, limited warranty that:

  • It will be free of manufacturing defects for the life of the original purchaser
  • IF, that there is a warranty claim, Air Vent Inc. will provide a replacement component, but you have to pay labor (NOT A BIG FAN OF THIS)
  • Warranty transfers to any replacement needed
  • Warranty lasts until the original purchaser sells the house or dies
  • For any non-personal residence (office, etc…) the warranty is 50 years
  • The warranty is transferrable to a new owner for a period of 50 years

They state several times that they won’t cover anything that was installed incorrectly, which I feel is a huge scapegoat because they could easily make that claim 20 years down the road, and who would be around to back your side up?  Some of my research elsewhere online (discussed below) reassured me though that I shouldn’t have issues, as long as the guys install them correctly.

Comparing ShingleVent® II to the Competition – According to the Manufacturer

**Disclaimer – the following information came from their website, so I’m certain some of it was probably biased, but that’s just my opinion.***

Air Vent, Inc. did some research on the performance of the ShingleVent ® II in comparison to the competition and found the following:

Airflow

The test to the left was a 1-hour, early morning test.  The wind speed was 3.5 miles per hour.  The numbers are the airflow coming OUT of the ridge vent.  The comparison was to the Cobra Vent ®.  You can see the airflow allows was much greater for the ShingleVent.

 

 

 

 

Weather Infiltration Prevention

You can see from the results in the chart on the left that ShingleVent II dominated this test with no leakage of water.

 

 

 

 

My Online Research

I was very comforted to find that many roofing companies and builders give glowing recommendations for the ShingleVent® II ridge vent.  The issues that I came across were due to improper installation.  One example is provided in the video below:

This professional strait out says that they are big fans of the ShingleVent ® II, but the contractor didn’t use long enough nails.  The nail that they used was not even 2”, and the minimum is 2.5”.  The gentleman in the video states that they use 3” nails, and in some cases 3” screws.

I came across these discussions while researching the competitors to ShingleVent:

http://www.diychatroom.com/f9/best-ridge-vent-23910/

http://www.diychatroom.com/f9/cobra-ridge-vent-problems-22815/index2/ 

http://www.roofing.com/forum/about5919-0-asc-45.html&sid=643b4e6c75fc4f9fc6fe1fdceeb6e1d6

This site seems to have a lot of good information on roofing, with videos and photography: http://www.homerestorationsmd.com/Roofing_Job_Pictures.html 

My Conclusion

Overall, I feel confident in the ShingleVent as a building material for my Barden Home.  I will certainly be asking the roofing crew what length of nail they used on the vent!