EDMOND — Jay Evans, owner of Two Structures Homes, has earned the Master Certified Green Professional and the Graduate Master Builder educational designations from the National Association of Home Builders. Master Certified Green Professionals must have at least five years of green building experience and have built or remodeled and certified at least three projects in a three-year period, plus have taken advanced training and take continuing education. Graduate Master Builders must have attained either the Certified Graduate Builder or Certified Graduate Remodeler designations and have five years of building experience, or have completed extra and have at least 10 years of experience.