Insulating Attic Junction Boxes

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

Insulating attic junction boxes. Surrounding insulation around j boxes there is no. Learn how to install home insulation with johns manville. In some cases you may also need the expertise of an electrician to safely insulate around junction boxes or cables. As beneficial and durable as the square junction boxes are they too allow air to enter homes and other buildings.

Square footage of your attic. 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. If you have to insulate around electrical boxes or cables then support from an electrician might be needed as part of the process too.

Start with the attic floor. Some of the electrical boxes can also take on an octagonal shape which is really a square box with angled corners. Square boxes or junction outlets holds wire intrusions for single or double electrical devices. Are there any restrictions on blowing cellulose insulation into an attic and burying the cable and junction boxes.

For more tips on how to insulate improve your home s energy efficiency and save money visit jmhom. To get to the where i needed to mount the boxes i gathered up the insulation between the. 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. Stop using your attic for storage.

Expect to pay an additional 85 per hour for this service. In this case the boxes will open into the attic. 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. In the attic under the floorboards is loose pink fiberglass insulation apparently just poured in.