Owatonna Power Plant, Owatonna, MN
One of the benefits of spray foam insulation is its ability to conform to unique architectural characters of a building project. The renovation at the historic Owatonna Power Plant is the perfect example. This extensive retrofit project required insulation in and around hard to reach areas such as existing stairwells, walls, pipes and wires. Any sort of traditional batt or loose-fill insulation would have been extremely difficult to install and would leave gaps and voids in the insulation. Since the renovation project was to convert the historic power plant into city offices, any insulation voids would make the office space drafty and uncomfortable in winter months.
Energy Efficiency in Hard to Insulate Areas
In the case of the Owatonna Power Plant, spray foam insulation not only conformed to insulated hard to reach areas, it also provided a high R-value. At a depth of 2 inches thick, spray foam insulation provided the new office space with an R-value of 14.
Many building projects use sheetrock as a 15 minute fire barrier. Installing sheetrock in the historic power plant’s hard to reach areas also proved an issue. In this case, the 15 minute fire barrier was achieved with 18 mil of fire barrier coating. Two coats of the fire barrier was easily installed over the spray foam.
By Jenny Bulfer