SPECIFICATIONS.
Spanish mid grey smooth finish slate.
Regular 4 - 5mm thickness.
Sizes Available. 500*250 400*200
Slates per m2, at 100mm head lap.
500*250 = 20.5 400*200 = 33 Test certificate.
BS Part 2 Guarantee Period.
30 years 1st Grade Slate.
15 years 2nd Grade Slate.