Quote:
Originally Posted by rwm1313
I have done it. Its best if it has been framed for a window already and the dealer just didn't buy the window option. If it hasn't been framed you will need to cut rough opening then remove some isolation from around the rough opening and put in some sort of frame. I used wood ripped down to the right size. The reason for doing this is when you install the window you want a good seal and the isolation is not ridged enough to create a lasting seal. good luck
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I agree except for clarity, it is block foam insulation. While I have not done a window, I did install a small baggage door. You do need to determine if there are aluminum or wood studs that will need to be cut, mine was small enough that it fit between existing studs. Before doing any drilling or cutting thru the wall, use masking tape to protect the fiberglas from chipping or cracking. The same problem exists with the interior panel, but use blue painters tape since masking tape may damage the panel when being removed. I would drill two holes at all 4 corners to mark the radius endpoints, then use these holes as reference points to apply the painters tape on the inside. Use a fine tooth saber saw at high speed to minimize vibrations that might delaminate the wall.