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Electrical Boxes and Masonry

jar546

jar546

CBO
Joined
Oct 16, 2009
Messages
12,725
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Not where I really want to be
Although there is nothing "wrong" with this installation, I would have done it a little differently, I would have wrapped the entire outside of the box in self stick ice and water shield and then attached it so that when I had to go back in a few years, it wasn't rotted out as bad and it would make it easier to replace if I had to.
Thoughts?
IMG_3755.JPG
 
steveray said:
Never seen NM embedded in masonry before...Isn't the ground wire "supposed" to be wrapped the other way?
Click to expand...

Good catch! I did not see the ground wire wrapped backwards. I missed that!

They drilled through the block so it is not embedded. Good electricians will run the NM cable through smurf tube for the transition.
 
The ground wire ... from a practical perspective, i think the clockwise wrap was/is more important with stranded wire, so it has less tendency to come apart as the screw is turned. With a bit of care, solid wire can be successfully wrapped either way.
 
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jar546 said:
Although there is nothing "wrong" with this installation, I would have done it a little differently, I would have wrapped the entire outside of the box in self stick ice and water shield and then attached it so that when I had to go back in a few years, it wasn't rotted out as bad and it would make it easier to replace if I had to.
Thoughts?
View attachment 4128
Click to expand...
A problem with any selfadhesive flashing is that they don't form to complex shapes very well, especially if you're depending on it staying put after you turn your back on it. A better solution might be a rubber or plastic boot that might provide a slip plane should the box need replacement after the stucco is applied. Of course we don't build for sustainability in this country, for example, if we cared about making buildings maintainable we would never just side up to a window or door without any trim. I'm sure we all see it every day. How much does the cost of a window replacement effort go up if the carpenter has to remove the siding to change the window?
Bill
 
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