I purschase a Masonite Fiber Glass patio door from Home Depot. The door was delivered and installed by Home Depot. It's a lifetime warrantly on the door and now after three years the door is starting to warp or bow inward. I called Masonite and they claim I was suppose to paint the door this is within 45 days of installation. This information wasn't provided by Home Depot nor the installer. Masonite claims this information is on the packing on their door and again I never saw that since Home Depot delivered and installed the door.