outie windows – pressure treated bucks?
I am building outie window bucks out of 2x lumber to integrate with my 4″ exterior insulation. Im wondering if there is any wisdom in using pressure treated lumber for this application, just as extra security. I see exterior window frames among the first places for rot to happen on older houses in the area. Granted, if all the flashing is done properly this shouldn’t be an issue. However, with the cost being similar is there any harm in using PT?
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