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Build a Glass Block Wall Find more ideas on how to spruce up your cave from Man Caves. From "Man Caves" episode DMCV-112

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Figure A

6. Test fit the glass blocks on top of the 1x5 and up the wall, using the spacers. Mark the locations where the blocks end (the last one on the 1x6 and the last one up the wall). Draw a center line up the wall and down the 1x5 to these marks.

7. Cut the horizontal spacer to length and center it on the line on the 1x6. Draw lines along both sides of the spacer. Remove the spacer and apply two 1/4" beads of sealant 1/4" inside the traced outline of the spacer (figure A).

8. Insert an anchor in the horizontal spacer and press it into the sealant. Do not attach the anchor with screws. Note: Check the product instructions for more details on the anchors.

9. Line up the first row of blocks and one end block on top of the horizontal spacer. Apply two 1/4" beads of sealant across the top of the blocks, just behind the raised edges. Note: These blocks will be turned over when installed so the sealant beads will contact the bottom horizontal spacer. Always apply the sealant to the blocks, not the horizontal spacer.

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Figure B

10. Install the glass blocks and vertical spacers. Apply four 1/2" dabs of sealant 2 inches from each corner of a vertical spacer. Press the vertical spacer into place over the anchor. Install the first block with the sealant beads down. Push the block firmly against the anchor and the spacer.

11. Apply four 1/2" dabs of sealant to the side of the first block, 1/2 inch from each corner. Press a vertical spacer into place on the sealant dabs. Apply four 1/2" dabs of sealant to the vertical spacer, 2 inches in from each corner. Install the next block with the sealant beads down. Continue installing blocks and vertical spacers in this manner to complete the first row (figure B).

13. Apply two 1/4" beads of sealant on top of the first row of blocks, just behind the raised edges. Install the second 31" horizontal spacer on top of the first row of blocks, with an anchor inserted into the wall end. Make sure the spacer fits firmly on the glass blocks. Press the spacer down onto the sealant.

14. Align the V notch in the anchor with the plumb line drawn on the jamb, and attach the anchor using the screws provided in the anchor pack. Remove any excess sealant from the horizontal and vertical joints. Adjust the size of sealant beads to prevent squeeze out (keep the joints clean of sealant). Do not change the location of the beads of sealant. Continue installing the block in this manner until the last block is set.

15. Mix the grout according to the instructions. Apply the grout to the glass block joints using the rubber float. Using clean water and a damp sponge, wipe up any excess grout, wiping in a circular motion. Let the grout dry and wipe the film off blocks.

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