Skylights are a feature that transform an interior space when done right and risk a lifetime of headaches when done wrong. Modern designs have come a long way from the old plexiglass domes and now offer great energy efficiency, smart home options and the ability to improve the environment throughout a home. Mark Taylor, national Canadian sales manager for Velux and 27-year veteran of the business, joins The Hammer to share tips on how to do skylights right and really boost the impact of your renovations and custom builds.