The following are the leaders and individuals who have been with Black Roofing for many years and who are responsible for the satisfaction of our customers.

Tim Black, President, founded Black Roofing in June of 1975. Tim’s 40+ years of experience in the roofing industry, is reflected in his day-to-day involvement in the company, managing marketing, interacting with the project managers, and problem solving. He has served on the Board of Directors of the National Roofing Contractors Association and is a past-president of the Colorado Roofing Association. A hometown Boulder boy, Tim is active in the local community as well.

Dan Zahtila, Executive Vice President, began his roofing career in 1978 and became part owner of Black Roofing in 2003. He oversees the daily operations of the company and provides management support to the various company department heads. 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. He is the former President of the Colorado Roofing Association.

Flat Roofing

Ricki Chesney-Giddens joined Black Roofing in 2003 as an Estimator /Project Coordinator for the commercial roofing department. She has over 40 years of construction experience, including 18 years in the roofing industry. She provides support for the project management staff through bid and submittal preparation, LEEDS documentation, contract administration, and accounting.

Projects of Note: Denver Art Museum, Jennie Smoly Caruthers Bio Technology Building at The University of Colorado, University of Colorado Center for Community, University of Colorado Visual Arts Building, Coors Field, Colorado’s Ocean Journey, The Denver Pavilions, and St. Andrew’s at Heather Gardens, CU Leeds School of Business Expansion, ATLAS Building, Museum of Contemporary Art, and the Classic Residence by Hyatt.

Brandon DeLozier, Vice President, began his roofing career with Black Roofing in 1996. Brandon was originally hired as a truck driver, but it soon became apparent that he had loftier ambitions. After extensive training in nearly every department, Brandon joined the project management staff in 2002. His customers include general contractors, property owners and managers, public and private entities, and homeowners. He can estimate and manage nearly every type of roofing project, including new construction, re-roofs, and service repairs for both sloped and low-sloped roofing applications.

Projects of Note: University of Colorado Leeds School of Business Expansion and the new ATLAS Building, Aspen Lodge Recreation Center, Comcast Communications, ARC Fairlake, Global Health Care Exchange, Louisville Library, First Presbyterian Church Tower, International Jet Aviation Services, Patterson Elementary School, and the Residence at the Flatirons.

John Zahtila, Secretary/Treasurer, is a Colorado native who joined Black Roofing as an estimator/project manager in 2007. John has been in the commercial roofing industry since 1980. His practical experience in commercial and residential roofing has helped him to broaden his knowledge to estimate and manage all types of roofing projects, including built-up, modified, single-ply, shingles, and liquid-applied coating systems. John is able to provide our customers with practical, innovative, and cost-effective solutions to meet the diversified roofing needs of our clients.

Projects of Note: Nestle Purina, UCAR, Cherokee Ranch, NIST, CSU Morgan Library, Graland Country Day School, Betasso Water Treatment plant, Vail Valley Medical Center, CU CIRES Building, and NREL.

Jack Garrett is the superintendent for the commercial department. He began his career in roofing as a laborer in 1978. Jack’s practical roof experience and knowledge has helped him develop into an effective and seasoned supervisor of all our low-sloped roofing crews for built-up, modified, and single-ply roofing systems. He supervises material handling, production, and manpower, and maintains and coordinates the start and completion of the roofing projects on multiple job sites.


Dave Greene, Service Department Project Manager.  Dave joined Black Roofing in 2011 as a Sheet Metal Project Manager/Estimator. During Dave’s nearly 20 years in the roofing industry, he obtained extensive knowledge of most commonly used roof systems and architectural wall cladding systems. Dave has worked in all aspects of roofing, including; installation, project management and estimating, architectural consulting/design review, and supervision. Dave’s expertise in sheet metal adds another dimension to our service department.

Projects of Note: Rocky Mountain Fire Station No. 1, South High School, Cheyenne WY, Rocky Mountain Hospital for Children, Grand Canyon Visitors Center, Westin Riverfront, Avon CO,  Las Vegas Convention Center, CSU Student Rec Center, and Caesars Palace Expansion.

Lacey Trokey, Service Department Coordinator. Lacey began her career at Black Roofing in 2007 as our receptionist and in 2009 became the coordinator for the Service Department. Lacey provides support for the project managers by helping them with proposals, work orders, warranties, scheduling, billings, etc. She strives for exceptional customer service by providing quick and efficient response times.

Alan Nedelea began his career with Black Roofing in 1991; he had previously worked in our Service Department moving to the Flat Department as a Superintendent. His vast knowledge of roofing makes him a valuable asset to Black Roofing.

Projects of Note: Nestle Purina, Erie High School, and Hughes Stadium at CSU, Tebo Family Medical Pavilion, One Boulder Plaza, 1155 Canyon, Museum of Contemporary Art, and Folsom Field Expansion at CU.

Sheet Metal Roofing

Jason Ayres joined Black Roofing in 2005. During his 20 years in the roofing industry, he has spent time as a Regional Operations Manager, Project Manager/Estimator, superintendent, lead foreman, and an apprentice/journeyman sheet metal installer. Currently, Jason is department manager for the sheet metal department. He has knowledge of metal roof, wall products and installation requirements for each system. Jason has experience in design development for new architectural systems.

Projects of Note: Colorado School of Mines Marquez Hall, Museum of Contemporary Art, St. Andrew’s at Heather Gardens, Broomfield Pedestrian Bridge, Focus on the Family, DIA, Close Combat at Fort Carson, Westgate at Peterson AFB, the Larimer County Courthouse and the Denver County Jail, East Housing Addition.

Scot Hanson, Sheet Metal Superintendent. Scot has been with Black Roofing for 9 years and has just over 20 years experience in the industry. Scot is experienced in all aspects of sheet metal wall and roof installation.

Projects of Note: Museum of Contemporary Art, Xylinx, Taxi Phase II, Spradley Ford-Cheyenne, X-Jet Urban, Pinnacle Park Lofts.

Scott Lindberg, Project Manager. Scott joined Black Roofing in 2013 as a project manager for our Sheet Metal Department. Scott has over 19 years of experience in the architectural metal and roofing industry including working as an installer, fabricator, and superintendent.  Scott’s experience as a project manager, along with his field experience, helps to provide our customers with quality metal roofing and wall panel solutions and installations.

Projects of Note:  Bank of Colorado, Sterling, CO;  Owatonna Hospital, Owatonna, MN; Creative Company, North Mankato, MN; St. Peter Community Center, St. Peter, MN; MinnStar Bank, Mankato, MN; Our Saviors Lutheran Church, Cleveland, MN; Bolton & Menk, Mankato, MN; and Westwood Community Church, Excelsior, MN

Shingle Roofing

Pat Sweet started his roofing career with Black Roofing Inc. in 1983 as a shingler on new construction and re-roof projects for 9 years. He moved to our service department for another 4 years working closely with CU Facilities Maintenance. Now a Project Manager for our steep department, Pat has 30+ years experience in the roofing industry and is a CertainTeed Shingle Quality Specialist.

Projects of note: Hale Science Center and Tuscany Towers

Larry Reinhard, Residential Project Manager. Larry has been involved in the roofing industry since 1977, including distribution, wholesale, and contracting. Larry is an active member of the Colorado Roofing Association, serving on the Board of Directors for 24 years. He was elected President of the Association in 1990, in 2006 he received an award for being “the voice” of the Colorado Roofing Association, and in 2011 he was the recipient of the prestigious Lifetime Achievement Award.  We are very fortunate to have such a committed and caring individual on our residential steep division team.  Larry specializes in insurance claims and residential re-roofing.


George Carter, Waterproofing Division Manager, graduated from Texas A&M in 1997 with a Construction Science degree.  Upon graduation, he spent five years with a Texas-based commercial general contractor and completed projects in Houston, Dallas and El Paso. George went to work for a major waterproofing contractor in the Dallas/Fort Worth area in 2002.  During his ten years in Dallas, he gained extensive experience with all waterproofing systems including below grade, air/moisture barriers, traffic coatings, through-wall flashing, water repellents, garden roof assemblies, joint sealants and expansion joint cover assemblies.  George joined the Black Roofing team in 2013.

Projects of Note: Cotton Bowl Stadium Restoration, Nasher Sculpture Center, Children’s Medical Center Tower IIIA, Kimbell Art Museum Expansion, Forest Park Medical Center Southlake, Radio Shack Corporate Headquarters campus, and the Ritz-Carlton Hotel Tower

Accounting/Operations Support

Nancy Hylbert joined Black Roofing in August of 2010 as an Administrative Assistant. With her extensive background in customer service, she is the first point of contact with Black Roofing. Nancy provides administrative support to the entire team at Black Roofing as well as assisting Lacey Trokey in the service department.

Zach Trokey, Operations Manager. Zach joined Black Roofing in 2012. He has over ten years of experience in customer service, sales, inventory, accounting, and finance with multiple Fortune 500 companies.  Zach oversees the daily operations of  Black Roofing, including purchase orders, inventory audits, incoming/outgoing supply deliveries, facilities and fleet maintenance, and mobile communications.

Safety Programs

Daniel Krus started with Black Roofing Inc. in 2009 as a Shop Hand/Delivery Driver, while attending Front Range Community College. During his first year Daniel demonstrated potential and drive for a more challenging position. After a brief stint as warehouse manager, he moved into the field of safety. After receiving extensive and ongoing training through OSHA compliance classes, Daniel soon became the Safety Coordinator for Black Roofing Inc. Today Daniel oversees all aspects of safety for Black Roofing Inc.’s employees, keeping them up to date on; First Aid/CPR/AED. American Red Cross and Medic First Aid, DOT regulations, the 1910 standards (general industry), 1926 standards (construction industry). He is qualified to provide most training needs.

One of Colorado’s most trusted roofing companies since 1975
Our employees provide the finest commercial and residential roofing services to the following Colorado Front Range and Mountain communities: Adams County • Arapahoe County • Arvada • Aurora • Bailey • Berthoud • Brighton • Boulder • Broomfield • Castle Rock • Centennial • Cherry Creek • Cherry Hills • Clear Creek County • Colorado Springs • Conifer • Denver • Douglas County • Erie • Elbert County • Elizabeth • El Paso County • Englewood • Erie • Evergreen • Fort Collins • Golden • Greeley • Greenwood Village • Gunbarrel • Highlands Ranch • Hudson • Interlocken • Jefferson County • Johnstown • Kiowa • Lafayette • Lakewood • Larimer County • Larkspur • Littleton • Lochbuie • Lone Tree • Louisville • Loveland • Lyons • Milliken • Niwot • Northglenn • Morrison • Park County • Parker • Pikes Peak • Superior • Thornton • Wheat Ridge • Weld County • Westminster • Windsor