I just went yesterday to a local rv repair company to check out my leaking skylight. I have a 2012 fw that I purchased "new" 3 months ago. One corner of the skylight was cracked, slightly under the sealant. Evidently one of the screws was tightened too much, causing the crack. We contacted the manufacturer and they are going to send another skylight, but will only pay for 1/2 hour labor. It seems that the sealant is a maintenance item and will require the most time. The repair company also suggested installing a metal frame under the skylight.