We had our mason put in 2 sets of glass block windows when he was bricking our exterior. (Each set is made up of three 12x12" blocks that were siliconed (?) together by the glass block place.) Our walls are ICF, which are 6" of concrete with 2-5/8" of foam on each side for a total thickness of 11-1/4". We allowed an extra 6" on each side of the window when they built the walls (total width of 48") so they can be splayed when they are finished. There is also an additional 4" in the height for splaying the bottom (total of 16"). The windows were formed with 2x12 bucks.

I was in the hospital when this part of the wall went up and it wasn't done as I had intended. I had planned to put flashing over the top of the block as well as along the sides to direct the water away from the inside.

Now about the only thing I can see to do is tear the wall down around the windows and flash it properly.

Here is a link for pictures:

http://s195.photobucket.com/albums/z247/rjshaw1937/?mediafilter=images

Suggestions anyone??