Billy Bob
2/18/2016
I recently had a new metal roof put on over my previous shingles. I had off ridge vents on top of my roof with my shingles along with soffits at the bottom. The roofer did not cut new along the top of the roof for the ridge vents but rather placed metal over my off ridge vents. He did this because he believes that the heat will rise and come up the off metal ridge vents and go up the raised parts of the metal and out the top of the roof. Has anyone heard of using previous off ridge vents as a substitute for cutting along the entire top of the roof? I also have gable vents by the way. I just want to know if I will still have adequate ventilation in my home. Thanks.
Todd Miller
Classic Products, Inc.
2/18/2016
Thanks. I do not know enough details here to calculate net free air flow of this for exhaust but ultimately you want a balance between intake vents and exhaust vents. My hunch is you do not have that at present. A great source of venting information is available at www.airvent.com

If you would like to reply to this thread, please log in. If you do not have an Ask the Experts forum user account, create one here.

Find a Contractor

Get Started Today

Take the first step to increasing the value of your home with a great looking, durable, fire resistant and energy efficient metal roof. Browse our list of qualified MRA Member Roofing Contractors in your area for a free consultation and estimate.