Cembrit Blunn has announced that three ranges of its natural roofing slates have been approved for use by the Snowdonia National Park Authority. This honour has been conferred on the company's Trinity and Glendyne slates from Canada, as well as its Spanish Contessa Q100 slates, all of which can now be used on roofing projects within the boundaries of the Park. Natural slate is a popular roofing material in Snowdonia National Park. In recent times, the demand for appropriate roofing slate has largely been satisfied from the substantial reserves at quarries adjacent to the National Park. However, slate from outside the geographical area can be approved for use if it matches the colour, texture and weathering characteristics of the local slate. After rigorous testing, it has been established that Trinity has equivalent qualities to slate from the Bethesda area, and in the case of the Glendyne and Contessa Q100 slates, the Blaenau Ffestiniog region
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