Click image to enlarge.
Click image to enlarge.
1. & 2. Fur out
the existing window opening to 2 in. wider and 2-1/2 in. taller than the
dimensions of the glass block panel. Tack stop blocks on the inside of the
opening to keep the frame flush to the framing. Assemble the frame, then plumb
and square it and nail it into the opening with 8d casing nails, shimming as
needed.
3. Rip two 3-ft. Long spacer boards the thickness
of your tile plus 3/4 in. so the window will protrude 1/4 in. past the finished
tile surface. Tack them to the sides of the window opening. Tack two 2x2s into
the boards to hold the glass block panel in the proper position while you push
it in from the outside.
Click image to enlarge.
4. Tap shims between the panel and the frame to
hold it evenly spaced on all four sides while injecting the expanding foam.
After the foam cures, cut away any excess and caulk the 1/4-in. space between
the panel and the jamb on the outside of the frame with silicone caulk. Finish
off the trim and siding to match the outside of the house.
Tip
Prime and paint the window jambs and
sill before setting the glass block panel to save time-consuming painting
details.
Click image to enlarge.
5. Turn off the main water supply to the house, and
in a convenient location, cut the hot and cold water supply pipes for the
bathroom. Also cut out and remove all the existing water lines and fittings in
the bathroom. Finally, cut out and remove the vent section leading to the sink
and the main stack 5 in. below the vent tee. Stuff rags into open drain lines
to keep sewer gas out of the house.
