Basic Installation: Instructions
Preparing the Ceiling
Invert dome and trace on ceiling.
For domes with rims, measure and mark the distance from the edge of the domes rim to the beginning of the curve. This is the cut line.
For rimless domes, the tracing line is the cut line.
Cutting the Rough Opening
Frame and Wallboard Construction: Cut wallboard and remove necessary sections of joist. Add as needed for support (figures 1 & 2):
1 framing members, 2 x double members on each side and perpendicular to ceiling joist, 3 x over the top to hold electrical box.
Lay-in or Suspended Ceilings: Cut acoustical tiles and metal framework. (figure 3). When in place, tiles will rest on the edge of the dome and framework.
Preparing the Dome
Lightly sand dome surface.
Fiberglass domes: drill hole for light fixture if needed:
- holes less than.5" cut from front with metal cutting twist bit;
- holes.5" to 2" cut from front with metal cutting hole saw;
- holes 2" or more cut cut from back with re c i p rocating saw (jig or sabre)
Polyurethane Domes can be drilled from the front side.
Frame and Wallboard Construction
Fiberglass Domes: Thread construction wire through metal straps on back of dome. Attach wires tightly to the overhead joist using screws (figure 4). Note: If you choose to drill through the dome, refill holes with Bondo then sand, or use fiberglass repair kit.
Polyurethane Domes: Insert screws through dome into wallboard or framing. Dome can be glued to ceiling using Focal Point Adhesive #33333.
Lay-in or Suspended Ceilings
Fiberglass Domes: Thread construction wire through straps; attach wires to suspended ceiling wires.
Polyurethane Domes: Use a wood block, into which the suspension wires are secured. Screw from the inside of the dome through the wood block that is positioned on the topside of the dome (figures 4 & 5). Note: Light fixture is supported by the framing, not by the dome.
Final Touch-Up
Sand surface of dome; paint with high quality paint. Do Not use lacquer paints.
Caulk where dome meets the ceiling.
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