01
Choose fasteners for the slate and exposure
Copper and other specified corrosion-resistant fasteners are commonly used with natural slate. Length depends on slate thickness, deck and system details. Nails should secure the piece without being overdriven; an overdriven nail can stress the slate or prevent it from lying properly.
02
Hooks have specific uses
Slate hooks can be part of an engineered installation or used in accepted repair methods. Hook material, gauge, length and placement must suit the project. A visible repair hook can be preferable to a large cement patch because it remains serviceable and does not cover the slate face.
03
Flashings deserve equal service-life planning
Copper, stainless steel and other compatible metals may be selected according to design, exposure and budget. Valleys, chimneys and wall flashings must have adequate dimensions and laps. Mixing incompatible metals or relying on surface coatings can shorten service life.