Sandblasting of a windshield does weaken the glass and can cause halos during rain or at night and the sunlight during the day, as you mentioned, can also cause you problems to see through a sandblasted window.

Your insurance company's adjuster may need to see the sandblasting damage to determine that the windshield needs repaired or replaced however if they do say it needs to be done than it should be covered under your Comprehensive coverage and without a deductible being due since you live in Florida.

Florida Statute 627.7288 (titled Comprehensive coverage; deductible not to apply to motor vehicle glass) says that the deductible provisions of any policy of motor vehicle insurance, delivered or issued in this state by an authorized insurer, providing Comprehensive coverage or combined additional coverage shall not be applicable to damage to the windshield of any motor vehicle covered under such policy.

You should report the issues you are having with your windshield to your insurance provider so that they can tell you if this is covered under the terms of your Comprehensive policy. Sandblasting is common for those that live on or near the beach so it should be an easy question for your agent or claims department to answer.

If you are having issues seeing out your front windshield than likely it will be covered since the FL law regarding windshield having a zero deductible when you have Comprehensive coverage, is there so drivers will have their windshield repaired or replaced when there is any obstruction issue.

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