January 2014

To vent or not to vent

To vent or not to vent 5 stars5 stars5 stars5 stars5 stars

Attic ventilation options can be confusing to roofing contractors

by Joan P. Crowe, AIA
Be the first to comment

Attic ventilation can be a confusing, complex subject and is the topic of many discussions, research papers and articles. For example, in the June 2012 issue, the article "Vexing ventilation issues" focuses on building code requirements for attic ventilation. In the article, there was some discussion about unvented attic assemblies because the 2009 International Residential Code® (IRC) introduced provisions allowing this construction type. Some readers found the concept of unvented attics even more confusing than attic ventilation. And NRCA has received numerous calls from homeowners and contractors regarding converting existing attics into unvented attics.

Basic concepts

Ventilating attic spaces is viewed by many roofing professionals as a technical requirement for steep-slope roof assemblies and often is a building code requirement. However, as mentioned, attics can be designed to be vented or unvented.

To read the article in its entirety, please log in or register (registration is free).

Log in or register for FREE access to this article and other Professional Roofing online content.

Not a professionalroofing.net user?

Register now for free access
  • Full access to every article
  • Online Web exclusive information
  • Photo gallery
  • Breaking news
  • Online classified ads

Already a professionalroofing.net user?

Log in now

User name:



Login help
Click here to have your user name and password emailed to you.

Comments (0) Login to post a comment or rating
There are no comments posted.