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Halo 5071P Eyeball Trim Satin White: Halo H5T Non-IC Housing Non-IC thermally protected housing can be used in insulated or ... in ceiling with insulation, 3" air space is required around fixtureAdd to Shopping List $13.15ea. at www.elights.com
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Your box will need to be 53cm wide x 74cm long x 30cm high (21" wide x 29" long x 12" high) for a newer fixture. Boxes of these dimensions will, as a rule, dissipate enough heat to avoid a fire hazard or blowing bulbs.
The idea is to create a perfectly airtight separation between the ceiling and the attic. Seal all the joints and seams in the box (this will also hold the pieces of drywall or wood together) and seal the bottom of the box to the ceiling. You will also need to seal where all electrical wires penetrate the box. After sealing, insulation can be blown or positioned over the box.
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If there's no electrical outlet handy, you may want to hire an electrician to run wire to the new fixture. But first have a look at How to Fish Electrical Cables. With a little spunk, you can save a bundle and have the satisfaction of doing it yourself.
Safety Buy an insulation-contact (IC) rated fixture. When insulation touches an improperly rated recessed light, fire can result.
If you run cable into a new junction box and from there to the new light, the junction box must be in an accessible place (usually the attic or basement) and not covered with drywall or the like.
Step by Step 1. Cut an opening and wire the light. Turn off the power. Use the electronic stud finder to locate ceiling joists. Trace the outline of the fixture onto the ceiling. Then, with a tarp beneath, use a drywall saw to cut the opening (or enlarge an existing opening) for the recessed light between the joists. A jigsaw with a plaster-cutting blade will make the job easier, but be careful not to cut through existing cables hidden in the ceiling. Another handy tool, especially if you're putting in several recessed lights, is a drywall circle cutter. It's precise and easy to use.
Insert the electrical cable into the fixture's junction box and fasten it with a cable clamp. Strip the wires as needed, then splice them to the fixture wires with twist-on wire connectors. Connect the fixture's black wire to the black house wire, then white to white and ground to ground (green or bare wire). Stuff the wires into the box and fasten its cover.
3. Install inner baffle and trim. Once the housing clips are snug, attach the inner baffle and any other trim to the fixture housing, according to manufacturer's instructions. The baffle shown is typical of recessed fixtures: it attaches with springs. Install the bulb, restore power and enjoy your new light.
TOOLS AND MATERIALSStud finderRecessed lighting fixtureDrywall saw,TarpjigsawCable clampdrywall circle cutterTwist-on wire connectorsAdjustable wire stripperLong-nose pliersScrewdriver
Your box will need to be either 35cm wide x 1.2m long x 30cm high (14" wide x 48" long x 12" high) for an older fixture, or 53cm wide x 74cm long x 30cm high (21" wide x 29" long x 12" high) for a newer fixture. Boxes of these dimensions will, as a rule, dissipate enough heat to avoid a fire hazard or blowing bulbs
If you choose to hire a professional contractor for this project, they will probably use a two-component polyurethane foam sealant. However, this product is not generally available from hardware or lumber retail stores and must be obtained from an industrial supplier. If you plan to do the project yourself, you can choose either a one-component insulating foam sealant or caulking.
Occasionally, access above the light fixture is very difficult (for example, in low-slope roofing or cathedral ceiling situations). Also, on ground floor fixtures the rim joint around the ceiling space is often not effectively sealed at the time of construction. This particularly applies to older houses without plastic vapour barriers or house wraps for wind proofing. Such fixtures can be sealed from below using a combination of silicone caulking and foil tape, as long as you’re sure that there is adequate space above the ceiling for heat dissipation from the shell of the light.
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