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How to mount an enclosure to exterior wall with vinyl siding?

9846 Views 3 Replies 3 Participants Last post by  Tom Struble
Hello,

I have an enclosure box that has outside dimensions of approximately 8.5 x 8.5 inches (4 inches deep). I need to mount this box to a wall that has vinyl siding. This box will be used as a bulkhead of sorts for coax cables going through the wall. There will be conduit running out the back of the box (through the wall) as well as out the bottom of the box (toward the ground). I need to secure the box to the wall, but I also need it to be in front of the siding (not recessed with the siding butting up against the sides of the box) so the conduit extending from the bottom of the box doesn't interfere with the siding.

I'm looking for mounting suggestions. I've previously received suggestions to use a "meter base J-block" vinyl siding piece, but I've never seen one of these so I'm not sure if it'll work. Could I also mount the box directly to the sheeting behind the siding, using a piece of plywood as a spacer so the box isn't recessed behind the siding? What steps should I take to prevent water penetration into the building? Housewrap, flashing, drip cap, etc.?

Thank you.
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Sounds like you already have figured out what to do. Yes, if you can't find the proper vinyl block to use, make your own and j-channel around it using the correct flashing and wrapping. You could even wrap the box in aluminum if you can do it nicely. If you leave it would make sure to treat every cut and side.
Sounds like you already have figured out what to do. Yes, if you can't find the proper vinyl block to use, make your own and j-channel around it using the correct flashing and wrapping. You could even wrap the box in aluminum if you can do it nicely. If you leave it wood make sure to treat every cut and side.
if there is not alot of weight on the box it can just be mounted right on top of the vinyl.Run your conduit thru a hole centered in the siding position the box and mark your mounting holes.Pre drill the holes in the siding over sized for the screw shank,apply some sealant to the screw locations and screw the box thru the vinyl into the sheathing,dont over tighten.If you want you can apply some clear silicone to the top of the box where it meets the siding
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