Begin with the structure
Natural slate is heavy. A qualified assessment must establish whether the building can support the proposed system and what structural work, if any, is necessary.
Identify the slate
Source, thickness, dimensions, and grading affect the specification. Natural slate and slate-look manufactured products are not equivalent materials or scopes.
Look closely at metalwork
Valleys, flashings, fasteners, and penetrations must suit the assembly. Ask how these details will be specified and how future repairs would be accessed.
Confirm specialist availability
Handling and installing slate requires appropriate experience. Discuss current availability, site access, breakage allowances, and the written installation scope before committing.
Make it specific to your home.
This is general planning information, not a diagnosis, quotation, insurance determination, or promise of product performance. A property-specific assessment and written scope are the next steps.