Adding ISO board under siding??
I have a 160 year old ballon framed farm house in NE Pennsylvania. I want to add insulation to the exterior walls. The current wall profile is 1/2" sheet rock, 1.5" foil faced ISO board, 1.5" verticle rough cut planks, wood lap siding. Most of the siding is original and is very weathered but has no rot issues whatsoever. Can I add ISO board under the siding or will I run into moisture problems by having 2 vapor barriers??
Posted Jul 10, 2013 9:54 AM ET
Other Questions in General questions
I have a 800 sq ft home in Asheville,NC and am looking to put on a 550 sq ft addition. I have looking into all options of radiant floor heat vs mini splits for our heating and get stuck between preference and practicality. I am adding three floors with e