[Shane826]

I don’t have a drawing but… On top of the roof there is a riser made from wa wood or PVC board frame topped with a price of TM wall material. This is screwed to the roof and then siliconed. No flashing. The plastic skirt you see under the A/C sits on top of this riser and then the A/C sits on top of that. The skirt should have a bead of lap sealant sealing it to the top of the roof. The A/C is clamped to the riser, sandwiching the skirt in place, by 4 bolts, 1 in each corner of the riser 14”x14” cutout. There is a foam gasket between the A/C and skirt. Trust me you don’t want to remove the riser. If it’s not lined up just right, nothing else will line up correctly.

Note if you’re getting water in that cable channel on the ceiling take a good look at the seam that runs down the center of the roof. Water in the cable channel tends to be a tell-tale of a leaky center seam. Remove the trim, Eternabond tape over the seam, and new trim if you so desire seems to be the best fix going.