Metal Trades Department International Affiliates

International Association of Heat and Frost Insulators and Allied Workers

Headquarters 9602 M. L. King Jr. Hwy. Lanham MD 20706 Work Phone: 301-731-9101 Work Fax: 301-731-5058 Website: http://www.insulators.org/

HFIAW is affiliated with the AFL–CIO and the Canadian Labour Congress and represents nearly 30,000 craftsmen in a series of construction trades. Today’s union insulator is skilled in the installation of mechanical insulation, fire stopping, asbestos and lead mitigation or abatement, sound attenuation and specialty fabrications required in custom mechanical insulation installations for commercial, industrial, medical, bio-technical, governmental and educational facilities among other customer types. This work is installed by our professional mechanical insulators that have achieved journeyman status in the union through a multi-year classroom and 1,600 hour per year on-the-job training program second to none in North America.

The International Association of Heat and Frost Insulators and Allied Workers has persevered since 1903, a testament to our founders’ commitment to the dignity, skills and well-being of our membership. For over 100 years our union has endured, through good times and bad, in peacetime and at war, through economic depression and prosperity, in favor and out of favor with governments and politicians. Through it all we not only have survived; we have flourished.

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