Ron, Super looking insulation project. One suggestion to save you some money if you're interested: Rather than use the aluminum strips for support, go to the carpet department of Lowes or HD and look for the aluminum carpet runner strips. They are anodized, have predrilled holes, are hardened and about 1/3 the cost of the strips in the metals department. I bought mine at Lowes, they are 6' long 1 1/2" wide and worked perfectly, they have a slight bend in them so they put additional pressure on the coroplast to help seal it better to the frame. Just a suggestion, in case you're interested.... What you've done will give you an arctic polar package by the time you're finished
John