Yes! There is an IBHS rating system for this. The foam adhesive strength keeps the OSB sheathing attached to the rafters even when nails pull. Growing segment for us in South Florida.
For Florida: unvented attics with closed cell on the underside of the roof deck is standard practice now. Keeps the attic in the conditioned envelope, dramatically reduces AC load, and protects ductwork.
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Mike T. (TX) posted in Contractor Talk: "Best temp settings for 2lb foam in summer heat"New article: "Spray Foam R-Value: The Complete Guide" — Read it nowSarah K. (OH) rated a contractor 5 stars in ClevelandWebinar: Cold Climate Installations — June 18 at 2PM EDT — Register Free28 new members joined this week!Texas Chapter Meetup: June 24 in Dallas — RSVP nowFoamPro_Dave replied: "Graco vs Gusmer after 8 years — my verdict"Mike T. (TX) posted in Contractor Talk: "Best temp settings for 2lb foam in summer heat"New article: "Spray Foam R-Value: The Complete Guide" — Read it nowSarah K. (OH) rated a contractor 5 stars in ClevelandWebinar: Cold Climate Installations — June 18 at 2PM EDT — Register Free28 new members joined this week!Texas Chapter Meetup: June 24 in Dallas — RSVP nowFoamPro_Dave replied: "Graco vs Gusmer after 8 years — my verdict"
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Mike T. (TX) posted in Contractor Talk 2 min ago
Sarah K. (OH) asked in Ask An Expert 9 min ago
FoamPro_Dave replied in Equipment and Rigs 15 min ago