I found these answers on a different site.
Finding studs through aluminum siding.
At 03 09 am 2 22 2009 wayne wrote.
Locate the switches and outlets which indicate a stud.
Further the approximate area of where i need to mount this bracket includes an area of the wall that has a bunch of electrical wiring running through it romex through holes in the studs.
Stud finders are the best way to consistently locate the center of studs.
Place the stud finder at the edge of the exterior siding.
The best way to find a stud while working on on the outside whether brick siding or stone is to use an electronic stud finder.
I have a situation where i need to mount a fairly stout bracket to the exterior of the building and i need to find one of those studs to do so.
I m having trouble finding the studs through the exterior of our home.
Since the baseboard is attached to the studs look to see if.
I was wondering.
The purpose is to anchor window boxes directly to studs on 2nd floor of the home.
Look at the trim for where it has been nailed to a stud.
I tried locating the studs from the inside.
Keeping these points in mind here are the ways i ve been most successful at finding studs.
Add the 5 1 4 inch thickness of the wall to the 12 inches.
There is a power outlet beneath the window so i know where that stud is.
For example if you locate an interior stud 12 inches from the corner add the thickness of the drywall usually 1 2 inch plus the thickness of the studs which is 3 1 2 inches if the studs are two by fours.
If i don t have any luck.
Use a metal detector to find the nails in the studs if you get dew on the house in the morning a lot of the time you can see exactly where the studs are when there is dew on the siding and it is just starting to evaporate it usually evaporates off the studs first since they are a bit warmer.
Ranging in price from 10 to 50 an electric stud finder will locate the center of any stud that that is covered by less.