About Us

Black Roofing is primarily a commercial roofing company that has operated out of Boulder, Colorado since 1975. We specialize in complex projects, requiring all phases of commercial low-slope roofing, architectural sheet metal and specialized steep slope applications, and offer assistance with material and specification choices. In addition to commercial roofing, we offer full-service residential roofing in Boulder and the Front Range.

Black Roofing provides roofing maintenance, leak repair and emergency leak repairs on residential and commercial buildings. We repair all low-sloped applications, shingles and tile of every variety across the Denver Metro area, the Front Range and the high mountains.

Call Black Roofing Now!

303.449.5176 for help with your roofing or waterproofing needs.


Tim Black began his roofing career in 1965 as a student at Boulder High School and continued roofing as a student at the University of Colorado to help pay his college tuition. After several years in the field, Tim started Black Roofing in 1975, catering primarily to residential customers.

In 2003, Dan Zahtila became the Vice President and part owner of Black Roofing. Dan’s experience in the Marine Corps, and his extensive commercial flat roofing experience, have added a more complete dimension to Black Roofing’s commercial abilities.

Over the years, Black Roofing gradually began to emphasize commercial projects–the more complex, the better. Three of the most complex projects were The Denver Art Museum, The Clyfford Still Museum, and the Museum of Contemporary Art. Both the Denver Art Museum and the Museum of Contemporary Art won national recognition for their innovative roofing solutions and safety. Since 1975, Black Roofing has installed the roofs on 45 buildings at the University of Colorado, many of the City of Boulder facilities, and the majority of the Boulder Community Health properties, including the new campus at Arapahoe and Foothills Parkway.

Today, Black Roofing continues to pursue projects that are challenging and fun and that serve the local communities. We mentor and nurture Black Roofing employees, not only to encourage strong, future leadership, but also to continue the tradition started by Tim Black more than four decades ago.


Black Roofing takes safety seriously and is committed to providing its employees with a safe worksite environment. We have a full-time safety manager and a part-time safety consultant to help with special training. Training involves fall protection, ladder safety, personal protection equipment, risk assessment when requested, and daily Toolbox Talks.

Black Roofing rewards its employees financially, monthly and annually, for performing their jobs safely. A monetary fine system is in place to specifically discourage negative behavior, and an employee will be terminated for too many violations.

Because of our safety program, we have one of the lowest workmen’s compensation experience modification rates (EMR) for the industry in the state.

Here’s a great article (PDF) about Black Roofing’s commitment to safety during our work on the Denver Art Museum roof.