I am writing to compliment you on your excellent product and to tell you how much I enjoy having it on my home. The existing roof on my house was about 20 years old and was showing its age in a few places. When I heard about the Interlock Roofing System, I knew it was the right solution for me. Your salesman Daniel Adolfson was very thorough in his presentation and really took the time to explain the System in an easily understood manner. Your installation crew was prompt and courteous, finishing the job in only a few days. Since completing the job, we have had snow and rain. I have been amazed at the performance in either type of weather. The snow simply slides off and the Interlock System is actually quieter in the rain than the existing asphalt shingles were. In closing, I thank you for an excellent product and a job well done.