Definitely check your insurance policy and/or talk with your agent. I haven't had to replace the windshield on our coach but a few of the comments on here suggest it is a covered replacement. I know that on passenger vehicles, the windshield is covered under the Comprehensive section of your policy. It probably requires that some damage was done TO the glass as opposed to a defect such as stress or delamination. Also, many states, such as Florida require that the windshield is covered with no deductible. This is to take away the excuse of not able to pay the deductible and driving around with a damaged windshield.