Building panel as a covering for building surfaces and method of applying

Building panels are provided, for applying panels, such as siding, roofing or the like to studs, to roofing rafters, or the like, wherein indicia is provided along a panel, giving spaced-apart markings, for guiding one who is applying panels to a building surface, to the location of a next support capable of supporting the panel when a fastener is applied thereto, a fixed or pre-set distance from a support such as stud, roofing rafter or the like. Thus, when adjacent studs, rafters, or the like, are spaced apart a known distance, the indicia will serve to guide the installer to a location where a fastener will engage a support to which the panel is to be applied, even if the visual location of the underlying support is visually obscured, such as by means of a sheet building material between the structural support and the panel. The indicia may take on various forms.