One mounting ear on the box can easily be attached to the tail end of a rafter or truss but the other ear will probably not have any wood structure behind it.
Junction box vinyl soffit.
It should be a snug fit.
Then mark and cut a hole for the electrical box in the soffit cover.
Install proper bracing a simple 2x4 between the rafters should be fine and attach the electrical box to it.
Vinyl or aluminum soffit usually just hangs between a channel on the wall and the fascia.
Box 20 69 box free delivery with 45 order.
Using 8 sheet metal screws secure the junction box to the soffit.
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Siding mounting kits with built in box.
For smooth vertical mounting of light fixtures on all siding types.
Another idea would be to put a small piece of of wood in the space of the block to shim out some structure to screw a pancake box into through the vinyl cover.
Thu sep 21 2017 1 53 am if you mount the pancake box under the vinyl cover on the osb you run into the problem where it won t be flush with the vinyl block cover.
If you have lap siding wood hardboard fiber cement or plywood sheathing mount the junction box to the house using exterior grade fasteners.
Many houses today have vinyl or aluminum soffit making it difficult to attach a junction box.
Builders edge 6 6875 in x 6 6875 in almond vinyl universal mounting block.
For brick or stucco siding mount the box with masonry anchors.
There should now be about 8 inches of neutral wire hanging down from the center of the junction box.
Arlington dbvs1c 1 low profile in box recessed outlet box wall plate kit for new vinyl siding construction vertical 1 gang clear 4 7 out of 5 stars 252 22 48 22.
If it s aluminium plastic soffit covers you ll have to remove the section where you re installing the receptacle.
White polypropylene mini mounting block for siding model 146100001 10 68 10 68.
For vinyl siding over composition board use hollow wall anchors.