Why does my slate roof seem to continually need repairs?
- Loose and slipping slates need restoration
- Corroded nails on original slate roof causing slip & movement
- Slate roofs that have slipping and moving slates … continually … may need to be completely restored.
- You can keep repairing areas that have dislodging slates – but eventually it’s more economical to have a full restoration.
Providing your slates are of a good quality, not soft, flaking or powdery underneath, your roof can simply be stripped from the battens and relaid.
What Causes Slipping Roof Slates?
The slates on your roof are slipping and sliding down because their nails are rusting right through and no longer holding them in place
Many of the slate roofs that were installed in the 19th and 20th century are now over 100 years old.
The nails always rust through, at the part of them where they protrude from the batten under the slate that it’s holding.
For some reason this is the area of the nail that gets the most air and slight moisture that causes the corrosion. Not really that much of a problem though, it does take over 100 years for this to happen.
The corroded nails on this original slate roof are causing the slates to slip and move
How We Do Slate
Roof Restoration
First up, when we inspect your roof we’ll tell you if your slates are suitable for a full restoration.
Rusted slate roof valleys replaced during roof restoration
What are we looking for ?
Well, there’s really no point in restoring your roof if the slates are nearing the end of their functional life. If they’re soft, delaminating, excessively flaking and powdery they may only have a few serviceable years of life in them and it’s just false economy to try to restore them. Another reason is there may be just too many broken, split or damaged slates on your roof.
In either of these cases you’re much better off re-roofing with new or salvaged good quality slates.
Here’s our process for the restoration of your slate roof.
- One side at a time the slates are stripped completely from the roof and stacked on the battens.
- Any broken, cracked, soft or defective slates are discarded.
- The battens are inspected and any defective ones are replaced.
- The slates are then relaid using new slate nails.
- Reclaimed slates matching as close as possible the originals are sourced and laid to make up any shortfall.
- As the sides are relaid new valleys, gutters and flashings are installed in with the slates. All debris is removed during and at completion of job.
Your completed slate roof restoration – what can you expect from it.
- New slate nails will stop any more slates slipping.
- Your roof will look nice and fresh and sit tightly and even
- The removal of damaged slates and the replacement of all roof flashings will ensure no more leaks from your slate roof.
- Your fully restored roof will now be fully watertight and maintenance free for many, many years.
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