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RE: electronic stud finder to detect roof joists?

> Everyone is overlooking the obvious.  The roof shingles are nailed to
> plywood sheathing so it will detect solid wood wherever it is moved! 

Yes, but there is more wood where the beams are.  As I posted, the electronic stud 
finders will detect a stud or even a furring strip, which is underneath a wall made from 
1" tounge and groove wall board.   Finding a beam underneath plywood would be no 
The effect of the sand or whatever is in the roofing, however, could be a problem. 

 *Bill Jones  N3JLQ  Sweden Maine                                *
 * wejones@megalink.net                                          *
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