I'm looking for input on the best way to insulate my 2-car, metal, garage door.
My plan is to use either 2" R-Tech Styrofoam w/ foil back commonly found in any large home store -OR- the pink, Owens Corning Ridgid foam board version of the same thing. The R-values are: 7.7 or 10.
$22/ea r-tech, $29/ea for the pink. I think the pink board is harder to work with but don't know. Any suggestions welcome.
Note: none of the kits make sense to me as they often are designed for smaller garage doors.
Questions:
1. Relief cuts?
2. Adhesive or not?
3. Saw blade choices? 10", 50t Combo blade or a crummy stock saw blade that's never been used or something else?
I made a diagram of the measurements all the individual panels and used a cut list optimizer to lay it all out. I can get away with 4 boards, 3 panels each, of the stuff.
Please feel free to share your experience or tell me I'm an idiot, as long as I do it right the first time. Thanks in advance.