| Hatches
Hatch covers and other hardware
The teak handrails and table were reworked and installed they look
fine. To follow along with the pics, see hatches under the hull
section of the gallery.
The hatch covers were in rough shape with over 30 years of weathering.
The Plexiglas was all crazed and unusable. The original covers were
screwed on to the hatch frame and all the screw holes were cracked
from expansion and contraction over the years.
The Plexiglas was removed along with all the hardware and the frame
and hinges refinished .A new glass was ordered through the local
glass shop. It is 3/8th inch in thickness, and we used one of the
hatch covers as a pattern. This was my first mistake to assume that
both Plexiglas sheets are the same. Ill explains in the end.
Fist peal back the paper covering off the glass and locate the
position on the frame making sure that the hardware drill holes
are in the right position. If not you will be in trouble. Do this
project best in warm weather so that the glass can expand to its
max size .
Next run a bead of pure silicon all around your frame and position
the glass flush with the back edge and the side with the drilled
holes. The glass will not fit perfectly and most likely be oversize.
Now place a bucket of water on the glass and let it set up and cure.
About 2 hours will do. Get out your small planner and set it at
its lowest point, then plane down the Plexiglas to size on the two
sides that are overhanging, taking care not to dip the planner into
your teak because it will take off the finish and cut a grove into
it, forcing you to refinish the frame again.
Install your hardware, the hinges on the frame and the hatch fittings
and latches. Do this in the following manner. Fist tap the screw
holes with a thread tap so you can screw the hatch fittings back
on. The original was bolted through from the top, this is why the
top is countersunk. What I should have done was drill ¾ of
the way though the glass and then bottom tap the holes and install
the fittings with some short screws. Instead I tapped all the way
thru and kept the screws just below the top of the glass and filled
the countersink with silicon without pealing the paper back this
gave me a nice round fill just above the paper and it will finish
nicely.
Since we did not screw the Plexiglas down and it needs to expand
and contract I built a small aluminum frame around the hatch to
allow for expansion and contraction on the frame. An 8-foot section
of 1-inch aluminum angle will be needed per hatch. Measuring and
layout is very critical here or it will not fit properly and you
will have gaps for water leakage. Measure each side and lay it out
on the aluminum making a 45-degree layout for the edges. Do this
for all 4 sides with the ends meeting in the rear between the two
hinges right in the middle. Don’t cut anything yet. Now drill
your holes for the screws. I centered mine with a one-inch inset
from each corner. This misses the hinges in the rear. Now cut the
45-degree layout and bend the extrusion with a pair of wide flat
pliers to a 45-degree. This is a one-time shot only, you will harden
the edges with this process and if you screw up and want to reposition
the frame will brake and you have to start all over. Its time to
pre fit. Don’t worry if they don’t meet in the back.
. Peel back the paper. Start at the front running a bead of silicon
on the front and sides then screw in place. Do the same with all
sides. Now back off the hinges and fit the angle behind each hinge
plate and mark with a pencil. Remove and rescue your hinges. Take
your cutters and cut just above the line contour of the hinge. Continue
with the attachment process in the same manner as you did the rest
of the frame. It is wise to do the finish end first around the back;
this will give you a nice square edge to work with. Take the other
part and lap it over the end, mark it, and cut back to the shoulder.
This will give you a nice clean fit.
You’re done
The one part that was an error was cutting both pieces of the glass
exactly the same. The latch point on the front hatch was offset
and this is the one I used for a pattern. When I mounted the main
hatch the latch point did not match up the old teak-mounting bracket.
I had to drill out the teak remove the screws and reposition the
plate to match my screw up. This left 2 small holes in the headliner
and the teak. Once fixed I am probably be the only one that will
notice it but its my screw up. The price you pay for learning as
you go.
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