NRCA's attic ventilation guidelines

NRCA's guidelines on attic ventilation can be found in the Condensation Control section of The NRCA Roofing Manual: Architectural Metal Flashing, Condensation Control and Reroofing—2010.

NRCA members can view the manual online for free by clicking here.

This Web exclusive information is a supplement to Vexing ventilation issues.