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Hennis Exteriors takes pride in the work they provide and sets a goal to provide the highest quality in service and product. In order to meet these standards we set we have gained various cerfications in the roofing industry. CertainTeed has developed credential programs for residential and low-slope roofing contractors and we are proud to have obtained these credentials.

Master Shingle Applicator™- Standards of Workmanship Provide workforce standards, produce high quality jobs, ensure warranty compliance, by having our installers pass the Master Shingle Applicator™ test.
Shingle Quality Specialist™- Shingle and Sales Knowledge Gain a better understanding of shingle quality, design, warranties and the manufacturing process by reading the Shingle Technology Manual.
SELECT ShingleMaster™ - The ultimate credential, designed for the top-notch professional roofer. It enhances a contractor's ability to give superior value to customers.