My home insurance company is asking me for a sale and/or installation documentation for my windows and other..

opening protection showing the wind speeds that the protective device can withstand. I am in Florida. Why they are asking for it after 6 months I renewed my policy and been living on that house for 1 1/2 yr? If someone can explain it to me.. please!

Well, sounds like either 1. you had a claim (or the prior owner did) or 2. the company is "reunderwriting" their homeowners book of business.

You're in hurricane alley. They are LIKELY looking for an excuse to cancel your policy. I would knock myself out bending over backwards to dig that information up as soon as possible.