How long can Rockwool comfort board be exposed? - GreenBuildingAdvisor

How long can Rockwool comfort board be exposed? coldClimateHouse | Posted in General Questions on April 9, 2026 02:33pm 2″ Comfortboard is being installed over a self adheared WRB soon.  From contractor it sounds like it may be a while until siding is installed over it.  Should I be concerned about leaving it exposed to sun, rain and wind?  Is 30 days OK?  90 days?  Night temps could be down to mid 20s or so but generally warmer now in spring weather.thanks for any ideas, Answer GBA Detail Library A collection of one thousand construction details organized by climate and house part Search and download construction details Join the leading community of building science experts Become a GBA Prime member and get instant access to the latest developments in green building, research, and reports from the field. Start free trial Related Questions How long can a new mound system go unused? How long can PEX be exposed to sunlight through a window? How long can CDX be exposed for? How long can the air tightness of construction be maintained? Replies Expert Member MALCOLM TAYLOR | Apr 09, 2026 03:17pm | #1 coldClimateHouse, https://www.rockwool.com/syssiteassets/o2-rockwool/documentation/technical-bulletins/commercial/storage-and-exposure-of-rockwool-exterior-insulation.pdf? coldClimateHouse | Apr 09, 2026 03:57pm | #2 Thanks Malcolm, I did not see that instruction from Rockwool. So, they’d preferred that you didn’t do it at all, but up to 90 days might be OK if there are no big dow...