Llandudno's Victorian and Edwardian properties were roofed almost universally in Penrhyn Blue slate from the great North Wales quarries. Maintaining and replacing this material correctly requires reclaimed stock, specific knowledge of period roof construction, and understanding of conservation area requirements.
Nail Sickness — The Primary Issue
Victorian iron nails corrode over 80-120 years, weakening their grip on slates. As corrosion advances, slates begin to slip — first on steep or exposed slopes, then progressively across the whole roof. The slates themselves are typically still sound when the nails fail — re-slating with new copper fixings restores the roof for another generation.
Matching Penrhyn Blue for Repairs
Penrhyn Blue slate is distinctive — its colour, texture and cleavage pattern cannot be accurately matched with fibre cement or Spanish slate on period North Wales properties. We carry reclaimed Penrhyn Blue in a range of thicknesses (5mm to 9mm) and standard sizes to match original installations.
Conservation Area Requirements
Properties within the Llandudno Conservation Area are required to use matching materials on visible elevations — Penrhyn Blue slate (or approved equivalent) rather than fibre cement alternatives on street-facing slopes. We advise on conservation area status before quoting.
