Outside Lights and Z-Block against siding question (vinyl, Lowes, install)

[budsvtec]

I recently had my house resided and had to purchase Z-Blocks so I would be able to install outside lights against the siding. Does anyone know what holds the Z blocks to the surface of the siding?

I have no idea and I wished that my contractor told me before they did the siding, because then I would of bought the Z-blocks that get installed under the siding
Thanks

[K'ledgeBldr]

I don't know about "Z-blocks"- but I do know what a "J-Block" is.
It's basically a trim piece that goes around an electrical box. It hides the cut of the vinyl to give it a clean appearance. It comes in two pieces- the back mounts to the sheathing of the house and the face piece snaps on the back piece.
It's a pretty straight forward install- pop loose a section of siding, cut the hole, install the back piece, reinstall the siding, pop on the top trim piece.

[budsvtec]

That is different. The siding is already up and cannot be taken down - This mounts on top of the siding and then the light mounts to the z-block

Looks like this
Shop Severe Weather White Vinyl Flush Mount Block at Lowes.com

[K'ledgeBldr]

Originally Posted by budsvtec

That is different. The siding is already up and cannot be taken down - This mounts on top of the siding and then the light mounts to the z-block

Looks like this
Shop Severe Weather White Vinyl Flush Mount Block at Lowes.com

That's one of those cheesy- oops forgot that. It's basically the front half of the one I referred to earlier. The difference is the one you have is held in place by compression from the fixture. The fixture doesn't mount to the block- it mounts to the electrical box.
And it's no big deal to pop off a section of siding- every manufacturer has a special tool to use that "unhooks" the siding. When complete, you just pop it back on.

[budsvtec]

I figured that was how it mounted. Im not touching the siding - I know I will mess something up
Thanks