Exterior Light Mounting Block
#1
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Exterior Light Mounting Block
I have to replace the pine light mounting blocks beside the front door of my house. The siding is clapboard and the mounting blocks were used to provide vertical mounting surfaces for the wall lights. I would like to make the mounting blocks out of Azek (PVC) as the pine deteriorated. The tabs of the current metal boxes are screwed to the exterior face of the mounting blocks. This type of attachment is not recommended for the Azek. Should I screw the electrical boxes to the plywood sheathing and use mud rings to extend the box to the surface of the PVC mounting block? Other ideas or products?
#10
Azek's screw holding strength is not very high.
I've use Azek a lot for box surround before Arlington came out with their line of mounting blocks.
#12
Be sure to use the proper size pilot drill for the screws you intend on using. I would use sheet-metal screws or even consider tapping machine screw threads.