If it looks like a duck and quacks like a duck…well, you’ve heard the phrase before. But what exactly do you have when a spray foam project looks like a roofing application, but will end up functioning as attic insulation? Can a project be categorized by the way it’s installed, or by how it’s intended to function? Or can a project blur the line altogether? Enter the Gold Miner Hotel, located in picturesque Eldora, Colorado, in the midst of the Rocky Mountains. The historic 19th century bed and breakfast brought its facilities up to date with two applications of spray foam, completed a year apart. It was the second project that blurred the line on what could be seen as a roofing project and what could be seen as an insulation application. The Gold Miner’s first encounter with spray foam came when the hotel added a single story addition to its main two-story structure. With an energy-conscious mindset, the owner focused on properly insulating the new wooden structure, so it would retain heat more efficiently during the colder, windier months. The owner opted for spray foam insulation after taking into account the material’s additional air and vapor barrier characteristics. Ebase Insulation, located in nearby Boulder, completed the application in 2011. The hotel’s new addition performed well, though it brought to light glaring deficiencies in the main building’s capacity to retain heat, and its resulting energy waste.