In specific applications, absolutely. Crawl space and rim joist closed-cell spray foam encapsulation eliminates the cold-floor complaints that affect a large percentage of Utah homes with crawl spaces — permanently. Unvented attic spray foam brings HVAC equipment into conditioned space, reducing equipment temperature extremes and duct losses. Spraying all wall cavities is not always the highest-value use of the spray foam budget, however. RainFire Builders will identify where spray foam delivers the most impact versus where batt or blown insulation achieves equivalent performance at lower cost — and present both options clearly.