Welcome to DriTherm International Inc.
World's Largest Manufacturer of Pour-In-Place Insulation

DriTherm^® is a field applied underground insulation and corrosion protection product designed for below grade applications. First brought to market in 1967, DriTherm remains one of the most cost effective and environmentally friendly methods of insulating underground thermal systems.

Proven performance

When evaluating underground thermal insulation one of the single most important factors is resistance to moisture ingress. DriTherm is the only insulation of it's kind to pass a 10ft head of water test for 14 days with less than 0.02% moisture gain. An underground blanket of DriTherm^® offers excellent thermal, moisture and corrosion protection. Our references include over 4.5 million cubic feet (over 300 miles) of product successfully installed at some of the nation's largest universities, military bases, refineries, hospitals, and government institutions.

Environmentally friendly for over 40 years

DriTherm^® has been the environmentally conscientious choice for over forty years. The DriTherm^® formula has never been altered in anyway and still remains the safe and effective choice for insulating underground thermal energy piping.  DriTherm consists of nontoxic ingredients commonly found in pharmaceutical and food grade products.

Largest distribution channel in North America

With five nationwide factories DriTherm International Inc. is the most prevalent manufacturer of underground pipe insulation. Our multiple locations allow us to serve the entire North American market in the most cost effective and efficient manner. More local factories eliminate long lead times and reduce CO² creating freight costs.

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