I have 2 questions concerning replacing a stationary piece of glass.
1. I removed old trim, but the nails from the old trim are still there,
sticking out. Extract or drive all the way in?
2. The glass is caulked in or siliconed in. There's no way to push it
in from outside (too high). I cannot use suction cups since the old
glass is textured and won't create vacuum. How to remove w/o breaking?
You'll have to get the nails out. First, go to your HomeDepot or Lowes
and ask for a nail puller tool. It looks like some pliers with a
grabber on the end just to pull nails that are difficult and can't be
pulled with a hammer. Also, get a salesman there to show you how to use
that tool. If you don't go side-to-side with it you'll end up breaking
the glass, as the tool should never touch the glass. Good luck.
Usually the glass is inserted from the outside - with a thin layer of putty
or caulk placed on the inside frame to seal the glass in place / keep drafts
out. On the outside - 1/4 round wood is nailed in place to physically hold
the glass in place & finished off with putty / caulk.
It sounds like you have removed the outside 1/4 round and any associated
caulk/putty that was there - and now you will want to (carefully) remove the
nails that held the 1/4 round in place.
Before cutting the inside seal - you will want to either have someone
outside holding the glass in place (so when you do dislodge it from the seal
layer - it will not pop out & break.
On the inside, I use a razor knife to cut the seal layer around the inside
of the window - along the edge between the glass and the window frame. I
cut in steps (maybe 1/8" at a pass) so as not to exert too much pressure on
the glass. This takes time (at least for me).
Wear gloves - just in case you break the glass while cutting.
You can expect the razor knife blade to snap every so often as you have to
press it in at an awkward angle to cut the seal.
I asked at a glass shop if there was some special tool to do this - the
fellow said they just use a razor knife & keep replacing the blades.
Yes, you should remove the nails that held in the trim. I would also
look for any glazier's points that may have been installed; they can be
hard to spot.
You will have to make some way to hold the glass. If suction cups won't
work, try lining them with some sort of adhesive or silicone and let it
set until you can exert some pull on the glass.
If there is caulking or silicone between the glass and the outside trim,
and you cannot reach the window from outside to push it, you will need
something to break the sealing. I know of no tool to reach the outside
from the inside, so you will probably have to jury rig something.
My suggestion would be to first scrape out as much caulking as you can
between the sides of the glass and the frame. If that doesn't let you
pull in the glass, get a piece of thin, stiff, bendable wire, and bend
it into something like a Z shape:
|_ (something like that). The top is a handle; the bottom is to
break the seal. In one dimension, this is flat. Insert it beside the
glass with the flat dimension parallel to the edge of the glass. Then
twist it so the bottom goes between the glass and the outside trim,
breaking the seal. Repeat as necessary around the window until you can
pull it in.
Use two people. I think there is a law that says when you are removing
glass, it will pop out when you least expect it, so you need someone to
There's probably a pretty good chance the glass will break, so know
where to get another piece.
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