WebCut 1-in.-thick rigid polyiso insulation into 2-in.- wide spacer strips, and glue them to the inside face of each rafter with a spray-foam adhesive like Pur Stick ( www.todol.com ). Cut the polyiso insulation to fit snugly in each rafter bay, and foam it in place against the spacer to create a 2-in. chute or baffle. WebSep 18, 2011 · The plans called for 2x4 walls and EFIS finish on the exterior. Our insulation contractor suggested a 'flash and batt' system. spraying 1/2 to 3/4 of foam...then installing fiberglass batts. Yesterday, another insulation company rep stopped by …
Flash and Batt insulation....yes, no, maybe - Houzz
WebNov 29, 2010 · For a flash-and-batt job like yours to be effective, you need to be sure that your closed-cell foam is thick enough. In your cold climate, 2 inches is the bare minimum -- so if you have substantial areas of 1 1/2 inch insulation, that's … WebSep 18, 2011 · Flash and Batt problems? 09-14-2011, 01:37 PM I'm building new home in Illinois. The plans called for 2x4 walls and EFIS finish on the exterior. Our insulation … signs of a calf dvt
Flash and Batt - Am I in trouble? - Houzz
WebJun 23, 2024 · If a flash & fill is being specified, the "flash" needs to be closed cell foam that is at least 1/2 of the total R-Value of the insulation...that calculation gets a little fun, but...This puts a vapor barrier in the center of the wall, allowing it to dry in both directions. WebYes you definitely want unfazed batts. Might also consider throwing in mineral wool batts instead of fiberglass 8 years ago In theory, this should be fine. In practice, it may be difficult for the applicator to ensure a minimum one-Inch coverage to ensure the inner side of the sheathing stays below the dew point. I would increase the "flash" to 2". WebMar 18, 2024 · Flash and Batt Insulation Problems 1. No Air Seal Is Created. Your contractor may suggest just an inch of closed cell spray foam coupled with the... 2. Flash and Batt Moisture Builds Up On the Foam … the range delivery charges