Del Carmen Blue-black Ultra roof slate is ideal, with suitable fixing and detailing, for roof pitches as low as 17.5º.

It is covered by a 75-year guarantee and has been tested in accordance with EN 12326, carries the CE marking and is classified as ‘A1, T1, S1’.

Del Carmen roofing slate has been accepted by many of the UK’s heritage agencies for use on restoration projects or within conservation areas.