Insulating Attic Junction Boxes

Lynn underwood a licensed contractor and building code official in norfolk va responds.

Insulating attic junction boxes.

Contractor or insulation installer s fee. Depending on the difficulty of your job the size of your attic and the type of insulation material you choose the final cost for professional placement will likely fall between 1 50 and 3 50 per foot. To get to the where i needed to mount the boxes i gathered up the insulation between the. You can insulate these wall mounted square boxes as follows.

In this case the boxes will open into the attic. Surrounding insulation around j boxes there is no. Square boxes or junction outlets holds wire intrusions for single or double electrical devices. Expect to pay an additional 85 per hour for this service.

Some builders consider it safe to completely cover junction boxes in the attic with insulation as long as you mark the positions of the boxes. In some cases you may also need the expertise of an electrician to safely insulate around junction boxes or cables. Some of the electrical boxes can also take on an octagonal shape which is really a square box with angled corners. While there are no prescriptive prohibitions against covering junction boxes or electrical cables with insulation there is always the issue of heat buildup around any electrical device or wiring.

Learn how to install home insulation with johns manville. Start with the attic floor. Because the simplest and cheapest way to insulate an attic is. For more tips on how to insulate improve your home s energy efficiency and save money visit jmhom.

In the attic under the floorboards is loose pink fiberglass insulation apparently just poured in. Junction boxes in insulated attics some areas might allow for junction boxes that don t penetrate ceiling drywall. Are there any restrictions on blowing cellulose insulation into an attic and burying the cable and junction boxes. If you have to insulate around electrical boxes or cables then support from an electrician might be needed as part of the process too.