I'm trying to attach some shades above a window, into the drywall just above the trim.
First problem is that there's a low ceiling here, so I have only 6" of clearance between the trim and the ceiling. My stud finder is 6-3/4" long, so I can't use it vertically--a 45 degree angle at best.
Second problem is that there are two layers of drywall. The stud finder has a "deep scan" setting that's supposed to deal with that, but it's not helping.
When scanning this narrow area I get beeps and graphic indicators that are puzzling: they occur over too large an area to be a stud... except when they don't occur when going back over the same area. Worse, the electrical wire finder keeps going on. I'm almost certain there's no wiring here: an unheated crawlspace is the only thing overhead, and while there are a few wires in metal conduit up there (for an AC air handler and going to a couple of overhead lights) I've gone up into the crawlspace and nothing emerges into the attic from there.
Between the stud finder being at an angle and the deep walls, could it be stud finder be useless here? Could the window headers be throwing off the readings?
I don't happen to have any wall anchors around and with what's going on I'm loathe to go out just for such a small thing... but I don't even know if I need them. If I drill an inch or so above the trim--which covers about 2-1/4" above the window opening--am I likely to be going into a header, or is that too far?
How do I find out what's there aside from blind drilling?
First problem is that there's a low ceiling here, so I have only 6" of clearance between the trim and the ceiling. My stud finder is 6-3/4" long, so I can't use it vertically--a 45 degree angle at best.
Second problem is that there are two layers of drywall. The stud finder has a "deep scan" setting that's supposed to deal with that, but it's not helping.
When scanning this narrow area I get beeps and graphic indicators that are puzzling: they occur over too large an area to be a stud... except when they don't occur when going back over the same area. Worse, the electrical wire finder keeps going on. I'm almost certain there's no wiring here: an unheated crawlspace is the only thing overhead, and while there are a few wires in metal conduit up there (for an AC air handler and going to a couple of overhead lights) I've gone up into the crawlspace and nothing emerges into the attic from there.
Between the stud finder being at an angle and the deep walls, could it be stud finder be useless here? Could the window headers be throwing off the readings?
I don't happen to have any wall anchors around and with what's going on I'm loathe to go out just for such a small thing... but I don't even know if I need them. If I drill an inch or so above the trim--which covers about 2-1/4" above the window opening--am I likely to be going into a header, or is that too far?
How do I find out what's there aside from blind drilling?