......not comparable since aluminum needs a superstructure and FRP's it is built in.....with alum you can use any interior wall-I have 3/8" plywood and 2 " Polyisocynate foam board....FRP are a 2 skin bonded laminate with a structure built in.and some insulation....I did see one with a honeycomb in between the laminate skins.....very expensive and used on ambulances...Horten I believe?.....geofkaye
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women-food-money-naps...not necessarly in that order
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