Wadsworth, Ohio -- An intumescent coating is now approved for use over BASF's Enertite NM spray foam at the lowest tested wet thickness, surpassing previous results, claims manufacturer No Burn Inc.
The development allows No Burn Plus XD, used in lieu of a prescribed ignition barrier for the Enertite NM and Plus XD assembly, to be applied at a thickness of only 6 mils (0.154 mm) wet (4 mils dry). This is significant, says the manufacturer, because the new system is a more economical choice.
At this thickness, No-Burn Plus XD will cover about 267 sq.ft. per gallon.
Enertite NM is a low-density, open-cell polyurethane foam insulation for non-structural insulating in Type V construction.
Use of the No-Burn Plus XD intumescent coating is permissible with Enertite NM within limited-access attics and crawl spaces in accordance with the applicable sections of the International Residential (IRC) and International Building Codes (IBC), the manufacturer explains.
When Plus XD is applied at this thickness, No Bun says savings include: increased productivity, decreased job durations, simple installation by spray foam contractor sand access to national distribution centres for local pick-up.