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Replacing a broken window pane in a wooden frame.

To replace a broken window pane in a wooden frame, the following tools and materials are needed:

- gloves                            - linseed oil
- putty knife                       - glazier's compound
- soldering iron, or propane        - new glass
torch with soldering head
                                    - glazier's points
- paint (same color as rest
of the window frame)                - sandpaper


1. Remove broken bits of glass. Use gloves to protect hands (Fig. 1). Put broken pieces in a metal container for disposal.

2. Scrape off glazier's compound, softening it, if necessary, with a soldering iron or a propane torch. Remove compound carefully to avoid damaging groove (Fig. 2).

3. Sand or scrape groove until it is clean.

4. Paint the inside only of rabbet (Fig. 4) with linseed oil to prevent absorption of oils from glazier's compound (Fig. 3). Avoid getting the linseed oil on the varnished or painted surface of the frame.

5. Lay in a thin bed of glazier's compound about 1/8" thick around all four edges of opening (Fig. 4). The glazier's compound will cushion the glass and seal out air.

6. Insert new pane into opening and press firmly around the edges - not in the center of the pane. The new pane should be about 1/8" smaller than the window opening to allow for irregularities (Fig. 5).

7. Set glazier's points around all four sides of opening. To hold glass securely in place, set glazier's points about 4 to 6 inches apart. Using a putty knife or screwdriver, drive the glazier's points about half-way into the wood, or so that they will be completely covered by the glazier's compound (Fig. 6).

8. Glazier's points are either diamond shaped (7A), or triangle shaped (7B), or a push point style (7C).

9. Form four 1/2" ropes of glazier's compound and place them in along all four edges of the glass. Apply glazier's compound with fingers, pressing it against both glass and wood (Fig. 8).

10. Smooth out finger prints with putty knife. The glazier's compound surface should be smooth and unbroken (Fig. 9). It is a good practice to frequently wipe the putty knife with an oil-dampened cloth to prevent "pulling" the compound. Compound should be flush with edges of rabbet.

11. Let glazier's compound dry for a week or so, then paint it to protect it against the weather.

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Copyright 1994 Gale, Cengage Learning. All rights reserved.

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Publication:Pamphlet by: Cornell University Cooperative Extension
Article Type:Pamphlet
Date:Jan 1, 1994
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