Diversified Thermal, Inc. of Austin, TX is a branch of the Houston based Diversified Thermal, Inc.. We specialize in Waterpro ... ofing, Building Insulation, Fireproofing and Firestopping. Collectively Diversified Thermal, Inc. is the nations 2nd largest Icynene foam Distributor, installing sprayfoam insulation on the Interior side of Roofs and Exterior walls of Commercial and Residential structures. read more