Compare projected rafter locations on the project plan set with actual rafter locations; ensure that the layout is accurate. Create a chalk layout on roof according to the project plan set, then mark the locations of Base Feet.

Refer to the project plan set for Engineering Rules regarding maxumum spacing, cantilever, and fire setbacks.

Example project plan set:

Maximum span, cantilever, and cross bracing locations are project-specific values that depend on factors such as wind zone, snow load, and neighborhood topography. Check the project plan set for these values. If project-specific values are not available, you can refer to these system-wide rules that apply to all ZS Ramp systems regardless of project conditions.