01
List roles rather than names alone
Identify the slate contractor, material supplier, designer or consultant where involved, and building contact. Record what each party supplied or inspected and the date of the last relevant work. A phone number without context may not tell a new owner who can answer a material-matching question.
02
Add the practical references
Include the location of spare slate, the roof plan, inspection reports, and any specific system documents. Keep contact information current when maintenance responsibility changes. Do not publish private personal information unnecessarily; this is an internal building record. A concise sheet stored with the maintenance file can prevent a minor repair from starting with a search for the original project team.