Cargo Trailer Insulation

Hey All,
My cargo trailer's roof is a single layer of aluminum and that is all.
This causes issues when wind blows and when it rains. The noise is too much to bare. I am looking to add some thin wood and insulation to help with the temps and with noise dissipation. However, I am curious what insulation types everyone has used in the past. I would prefer to use an insulation type that is flame retardent since I might be running wires for power later on.
Any thoughts?
Thanks.
-V/R
Slade
My cargo trailer's roof is a single layer of aluminum and that is all.
This causes issues when wind blows and when it rains. The noise is too much to bare. I am looking to add some thin wood and insulation to help with the temps and with noise dissipation. However, I am curious what insulation types everyone has used in the past. I would prefer to use an insulation type that is flame retardent since I might be running wires for power later on.
Any thoughts?
Thanks.
-V/R
Slade