Welsh//Slate benefits from a number of highly practical properties making it an exceptional Roofing Slate.It is extremely durable, unaffected by normal extremes of temperature and is highly resistant to acids, alkalis and other chemicals.It retains its natural colour, even in UV light and is impermeable to water.Welsh roofing slate from Penrhyn, Ffestiniog and Cwt-y-Bugail quarries are known to produce the finest roofing slates in the world. Specific attributes Durability - 100 years plus useful productive life. Colour-fast, non fading. Aesthetically pleasing. Not as expensive as you think. Welsh roofing slates are commonly taken off roofs after 100 years (after the timbers have failed) and re-used. Penrhyn slate, for example, was removed from St Asaph Cathedral after 400 years in use and reused.The unquestioned quality and durability ensures Welsh roofing slate is much sought after for heritage and prestigious projects. Key benefits to the building owner in having a Welsh slate roof 100 year plus product life. Colour fast, non fading. Large format slates available. Ability to withstand most environmental conditions. Key benefits to the roofing contractor in using a Welsh//Slate roofing product Low level of on site grading required. Very low breakages on site. Please allow 5% extra in the ordered quantity to cover acceptable Breakage in transporting Natural Slate Products. Our slates are usually delivered on a Six Wheeled Lorry (11m Long & 2.4m Wide) with a Tail-Lift facility to off-load on solid level ground with a Pump Truck. Non compliance to delivery restrictions may result in additional Delivery Charges. Should you specifically require Crane Off-Load or small vehicle please notify us at the time of ordering, as an additional charge may be incurred. Delivery Notes - Our slates are typically delivered on a six-wheeled lorry (11m long & 2.4m wide) with a tail-lift facility to offload on solid, level ground with a pump truck.Non-compliance to delivery restrictions may result in additional delivery charges. Should you specifically require a crane or small vehicle offload, please notify us at the time of placing the order, as an additional charge may be incurred. Please allow 5% extra in the ordered quantity to cover acceptable breakage in transporting natural slate products