I just put this together today with stuff from my garage. I placed it on my porch roof and it sat firmly. It can be tilted easily between 0 and 90 degrees on any pitched roof. The fixture is attached with a screw/wingnut combo and can easily be relocated to the outter holes, to fit against corners if necessary. I improvised this rig so I can easily experiment with fixture placement in the evening. I'm thinking I will be installing to the plank siding? Any tips appreciated. This is the NS miniwashliter without the stem.