I have a 2 story house and am trying to replace a spotlight near a peak. Below the peak is a double window (two 30" wide double hung anderson wood windows) with an arch window over the top. The total window area with the arch spans about 64" wide by 80" high with only a couple feet between the top of the window arch and peak of the house.
Can I rest the top of my extension ladder against the half circle part of the window using a 36" wide offset bar attached to the top of the ladder without having the window cave in? That window seems pretty strong and I'm figuring most of my 180lb weight is pushing ground and not the window.