More common on older homes, the slate roof has been replaced by the easy to install and cost-effictive Asphalt shingle roof. As this shift in material choice occured many of the profesionals in the field followed suit leaving slate roof installation and more commonly repair to be an rare service provided roofing companies.
Specialized tools
Preferred over steel as the copper will last for 200 years while steel generally lasts for 60.
Optimized to score and cut slate as well as create holes for nails.
Specialized techniques
Slate roofs rely soley on shingle placement and metal flashing for water shedding where many modern roof rely on adhesives to ensure weather resistence. Shingles must be cut with specialized equipment instead of just a utility knife. Replacement utilizes special hooks to hold the shingle in place instead of face nails.
A robust system
While more expensive than the more common asphalt roof, slate roofs offer an elegant look that'll last generations if properly maintained. A worthwile investment for generational homes or even for someone seeking somthing more distinguished.