JELD-WEN Premium Atlantic Vinyl windows offer you the ease of maintenance and superior energy efficiency. Now with Premium Atlantic Vinyl windows, there are more choices than ever before, including architectural features that add to the aesthetic value of your home. The bottom sash tilts in for easy cleaning. Standard high-performance LowE insulating glass lowers energy costs, helps homes stay cooler in the summer and warmer in the winter. This specially designed impact-resistant glass can help save baby sea turtles as well as provide the protection from harsh weather conditions your are looking for. The special coating on Turtle glass helps shield light sources that could prevent newly hatched sea turtles from migrating towards artificial light instead of the moon and the sea. Turtle glass is required by law on all new beachfront construction, but can also be installed in existing homes.