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TheOldFellow[_2_] TheOldFellow[_2_] is offline
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Default How to fit electrical back box if there is no back?!?

On Thu, 10 Mar 2011 18:11:06 -0000
"Steven Campbell" spam@away wrote:

I was installing a twin socket in a brick wall and had cut /
chiselled out the brick ready for the back box.
As I was drilling the remainder of the brick to hold the back box,
the brick fell into the cavity so I'm now left with a hole with no
place to secure the back box!!
http://i918.photobucket.com/albums/a...sa1/socket.jpg
Any suggestions?

Thanks



18mm plywood. Drill two 20mm holes in it, put in a bit of string
between the holes. Wiggle it into place in the cavity with one end
behind each end of the back box cavity. While holding in position with
the string, put spray-foam nozzle into holes and get a big blob of foam
behind the wood and over to the outer wall leaf. Wait in this
excruciatingly painful position for about 10 minutes while the
spray-foam goes off. Tomorrow screw the back box onto the plywood.

Insulation, penance, and a good back-box in one.

R.