Working on Slate
When working on existing slates, never walk directly on the roof surface. Dry slates are slippery; wet ones are as slick as ice. All slates are brittle and easily broken.
- If you must walk on the roof, spread your weight with foam insulation or plywood underfoot. Walk in the valleys, or hook a ladder over the ridge and rest it on some
sort of cushion (a double layer of batt insulation will do).
- If the nails look very rusty, use extreme caution: when walked on, they could come loose.
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