Help with Exterior Window Trim
New windows started going in today. Was planning on using 5/4 Miratec trim for windows. The windows dont have a J channel but do have a slight lip around the face that forms a small channel. Lip is probably 1/8 inch and the channel looks to be about an inch deep. 5/4 trim want go into channel due to flange. I was thinking about rabbeting some off the miratec to get into the channel and have a nice caulk joint. My carpenters that will be putting the stuff up wanted to switch to 2x material for the trim which will stick out alot around the window. I dont think that will look good. Also concerned about expansion with the trim tight to the window. Any advice?