Multi-Ply Roof System Featured in Retrofit Magazine as Solution to Asbestos Roofing


The MR Multi-Ply® roof system from Thermal-Tec/ Michigan was recently featured in Retrofit Magazine as a sustainable solution to obsolete asbestos-laden roof panels still present in manufacturing facilities.

CEDAR SPRINGS, Mich., May 2, 2023 /PRNewswire-PRWeb/ — Thermal-Tec/ Michigan Inc, a go-anywhere commercial roofer The United States, was recently featured in Retrofit Magazine for its alternative solution to asbestos-laden roofing products like Transits. The company has been installing its unique solution on large production facilities with passage roof systems for 40 years.

Environmental regulations have cracked down on outdated and unsafe roofing materials. Too often businesses and building owners have to bear the costs without even knowing what is on their roof. Obsolete asbestos cement roofing products like Transits are among the regulated materials that have remained hidden for decades.

What building owners and facility managers need to look out for is when their aging, asbestos-laden roof systems begin to fail. It is imperative that they act now rather than wait until it is too late. The Occupational Safety and Health Administration (OSHA) and Environmental Protection Agency (EPA) have costly abatement procedures and will close facilities to get rid of the obsolete roofing materials. A good way to forestall this is to renovate your Transit roof with an environmentally responsible system.

“Re-covering a Transit roof not only protects the people working in the facility, but also the business itself by saving usable floor space without having to shut down operations.”
– President of Thermal-Tec, Robert Siterlet

As shown in the magazine, one such example is a successful – albeit complicated – roof restoration of an Indiana foundry established in 1893. The company produces gray iron for the agricultural, construction, transportation and manufacturing industries. Foundry plants are built to withstand intense heat stresses due to the high temperatures of furnaces and other equipment used in materials processing. When the plant was built, asbestos had long been praised for its heat resistance and durability. Of course, it has been widely accepted as a necessary additive to improve the performance and durability of building products, especially roofing panels.

In fact, many of the older equipment used in manufacturing today still have the once-popular pass-through installed. Once considered a “super product,” Transite peaked in production and use in the 1930s through the 1980s. It wasn’t until 1989, after the US government banned the product due to the health complications caused by asbestos, that the product fell out of use.

By re-covering an existing roofing system – no demolition required – a customer retains the original roofing investment and intended functionality; the entire building structure is reinforced by the additional tensile strength of the MR Multi-Ply® roof system; and thousands of pounds of roofing material remain in use and out of landfill.

The foundry only added 12-14 ounces per square foot to the structure and had no trouble supporting the weight of the new roofing system. Now the surface is renewed every 10-15 years with a fresh layer of asphalt and additional reflective roofing granules. You can read the full article about the Indiana Foundry roof renovation here.

About Thermal-Tec, Michigan Inc: Thermal-Tec is a family-owned roofing specialty company headquartered in Cedar Springs, MI. Today, Thermal-Tec manufactures and installs its proprietary MR Multi-Ply® roofing system throughout industrial and commercial manufacturing facilities The United States. Visit the company’s website for information on transit roof refurbishment at

media contact

Linda BlanchardThermal-Tec/Michigan Inc, 1 6166694000,

SOURCE Thermal-Tec/ Michigan Inc