Finding Exterior Wall Studs

[1L243]

I did post this question several months ago but got no reponse so, I thought I would throw it out there again.
I have a aluminum sided trailer with wood construction. I would like to locate the exterior wall studs. I have a quality electronic stud finder and I have tried the magnet and knocking method with no results.

I can locate the wall studs on the inside of the trailer with the stud finder and transfer that to the outside but this does not work when cabinets and appliances are in the way.

What's your method for finding exterior wall studs.

[CA_Traveler]

Using the condensation pictures as a guide measuring and determining stud locations inside and outside is easy.

[1L243]

Both look like great devices but I wonder if they work through aluminum siding. I have a decent electronic stud finder that works great inside the trailer and on dry wall but does not work at all on the outside aluminum skin.
I have tried the IR gun but it did not show any variance but that said I did not have the heat on inside the trailer and I think that may be necessary to see temperature changes.

[mike_brez]

Here

[colliehauler]

As another poster said very easy look on a cool morning with condensation each stud will have a pattern on the siding where it's located.

[shepfly]

Lookup Walbot , it attaches to a smart phone and allows you to see what's inside a wall. I haven't used this device. Dave

[myredracer]

Not sure why you need to know stud locations, but you can try tapping with a nylon faced hammer on the exterior skin. If you look inside upper and lower cabinets you may see where they ran screws through 1x1 into the studs. *If* you can make an assumption that studs go from floor to ceiling, if you look closely, you can find the tiny staples at go through the luan plywood into the studs.

CA Traveler wrote:
On a cool morning I took pictures of the condensation patterns on the outside.

Or if you get a IR gun, you might be able to easily tell where there's a temp. diff. An IR gun is a good tool to have anyway.

[CA_Traveler]

On a cool morning I took pictures of the condensation patterns on the outside.