JM Open-Cell Spray Foam Insulation
Johns Manville is a Berkshire Hathaway company operated by none other than Warren Buffett. On May 27, 2010 they announced that their company was releasing the ocSPF insulation made of low-density polyurethane open-cell spray foam insulation. This insulation was designed for both residential and commercial applications. They recommend use in floors, walls, attics, and ceilings. Attic insulation is well known as one of the most important aspects of making a home energy efficient. The main benefit of JM ocSPF however is its ability to insulate cavities of any shape which can create a seamless protective barrier. This barrier minimizes and even eliminates air leakage providing the most potent advantage.
This insulation is both mold and mildew resistant, has sound barrier properties, and gives an impressive R-value of 3.8 per inch. That means that 5.5 inches of this insulation will give you an R-value of 19. When the insulation is sprayed, it expands at a measure of 120 times its initial volume. This new insulation reduces jobsite odor and improves safety for installers due to its 100% reactive catalysts.
From the press release Mike Lawrence vice president and manager of the business stated, “We’re excited to announce the expansion of our spray foam product line with the launch of JM ocSPF insulation. We’re introducing JM ocSPF insulation with our customers in mind. Now, JM customers can order both fiber glass insulation and closed- and open-cell foam efficiently from one manufacturer, and with the reassurance that they are receiving quality products from Johns Manville.”
Photo by ann-dabneyThis insulation will maintain its performance over time and is recommended for climate zones 1,2,3, and 4 including the South and Pacific coast of the U.S. Another advantage is that JM ocSPF can be installed with any of JM’s fiberglass insulation products. They highly recommend putting an intumescent ignition barrier coating over the insulation.