See my website link below for more roofing help http www fixmyroof co uk videos and guides pitched roof repair a slate roof this video shows not only how.
Fixing loose roof slates.
Acquire the properly sized replacement slate.
With slate roofs look for similar numbers of loose slates that have been refixed with small metal tingles.
Carefully raise the slates in the row.
How to replace missing slate on roof.
Make a hole in one end of the tingle to take a fixing nail and secure the tingle through the gap between the two slates.
When removing slates from old roofs quite often the slating lath or batten has become dry and brittle over time this makes it very easy to break when using a slate ripper to pull a slate out or chop the nails fixing the slates.
Sometimes you may find the slate is not damaged and has simply slid out of place probably caused by corrosion on the securing nail the tricky thing is due to the way slates are laid on a roof.
If you ve got a cracked or missing roof slate rain water will get in and could cause considerable damage.
There are usually two nails.
If the tile or paver is already cracked or chipped it may be easier to break it up and remove it in smaller pieces.
How to replace damaged or lost roofing slates using the copper tab method cut the concealed nails holding the damaged slate in place.
In the loft there may be damp smells and localised staining from water ingress.
You ll need to replace the broken slate.
Slide the slate.
From a thin 25mm 1 inch wide strip of lead or copper make a tingle to hold the replacement slate in place.
If you have successfully removed the grout around the tile you should be able to easily lift it up.