Start with the roof evidence.

Record roof, structure, condition, wind, warranty, fire-access and listing evidence gaps before any attachment family is selected.

Project inputs

Defaults are examples, not recommendations. Replace them with traceable project assumptions.

The exact assembly, profile and manufacturer still need verification.
Do not trap a near-term roof replacement beneath the array.
Attachment-family screening is not a capacity check.
Confirm with the roof owner, manufacturer and warranty provider.
Use the governing local hazard and building-specific load path.
Record installer and membrane/roofing manufacturer requirements.
Local fire and building rules control the final layout.
A generic “compliant” label is not enough for a specific combination.

Screening result

Updated from the inputs at left.

Preliminary decision support only. Confirm inputs, governing standards and final conclusions with the responsible qualified professional before design, procurement or construction.

Method and assumptions

The tool turns the entered roof information into an evidence checklist for roof condition, structure, wind, warranty, fire access and the specific module/racking/attachment combination.

  • It does not shortlist attachment families or products.
  • Blocking evidence remains visible even when the initial inputs look complete.
  • Unknown roof construction is reported as an unresolved input.