BigWallop wrote:
"Phöènix" mindyouownbusiness wrote in message
...
Any recommendations for an inexpensive way to give shoes/trainers
better grip/non-slip on slate roofs.

Something to apply to older footwear would be best, temporary or
permanent.



Correct footwear is best worn when you're climbing on proper roof
ladders and frames. Your shoes should not to be relied upon when the
roof itself is slippery, wet or covered in moss.

Some roofs are not meant to be walked on, and some are far to steep
to allow you to walk on the slope. So you're so much safer to rely
on a proper roof ladder than just your footwear.

So you don't know then?