CertainTeed Corporationhas introduced three new online professional development courses for the design community through its Professional Continuing Education Program - The Evolution of Footing Forms, Vinyl Fence Systems and The Systems Approach to Designing a House: Part 1. CertainTeed offers 15 continuing education courses to help the design community meet requirements of their niche associations. The courses are free and available online for easy access any time. Participants simply go towww.certainteed.com/continuinged, register and take a course. A certificate of completion is awarded upon passing each course and can be immediately printed for personal records.