It doesn t matter where you start or stop.
Removing old roof slates.
Clean the roof with a push broom and remove or pound in any remaining fasteners.
Work from the top bottom and sides to save back muscles.
Limit cleaning to removing organic debris and delaminated slate flakes from valleys snow guards gutters and the area behind the chimney.
You need to pull the shingles off your roof transport those shingles away from your home and dispose of them legally.
Each of these stages requires different resources and involves its own kinds of costs.
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A vinyl leaf rake can clean harder to reach spots.
The process for removing a slate roof resembles removing any kind of roof.