Installing Mounting Blocks For Electrical Boxes
Mounting a new light fixture or other item onto a clapboard or vinyl sided home can be problematic due to the fact that the house siding is not a flat surface.
In the case of a light fixture you can use a specially molded light weight house siding mounting bracket that sits over the clapboard. You can find these types of house siding mounting brackets at most home improvement centers.
However for heavier or larger items, such as dish antenna mounts, water hose reels, and hanging plant hooks, these standard molded house siding mounting brackets are either too small or not sturdy enough. In this case you need to install an exterior mounting board.
Installing An Exterior Mounting Board
Consequently for these types of items you have little choice but to cut a hole in the house siding to mount a flat mounting block. Cutting a hole into siding is not easy to do and doing so frequently leads to water and insect infiltration problems.
Photo: Using my Duo-Fast DF225C coil siding nailer to fasten Azek trim and cedar clapboards.
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