Does your tiled or slate roof overhang a public walk way, conservatroy or maybe your front drive where you park your cars With the UK weather conditions becoming increasingly more unpredictable, the chances increase of failing tiles or slates sliding off of your roof, we have a solution for this by installing a Tile Guard or Snow Guard this ensures people ar possesions are protected, as well as preventing unnecessary injury from falling tiles. Snow slippage is particularly evident where smooth roofing materials such as slate and smooth type tiles have been installed. For additional security we recommend the installation of a Snow Guard which facilitates the retention of snow, allowing a slow melt, rather than slippage. 
I remember many years ago being called out for a roof repair on a property in Bromley Se London, the tiled roof on the property overhung a car sales pitch and a tile form the roof had slipped down the roof landing on a rather expensive car causing a large amount damage to the vehicle, I thought that this also could of easily been a customer viewing the car 
Believe it or not I was only asked to replace a few missing tiles, surley a tile gaurd was reqiured to prevent this happening again
When a tile falls from a private property causing an injury or damage, the person or people responsible for the maintenance of the property can be held responsible, and it will be possible to claim compensation from the owner-occupier or landlord's insurance policy. Otherwise a housing association or local council may be responsible for disrepair and poor maintenance which has resulted in tiles falling from roofs, and in these circumstances, it will also be possible to make a claim.
Protect your self , your cars, conservatory's with a Tile Guard