Indicative Test Results - Roofing Slate

Tests	Standard	Penrhyn Capital 6mm	Trinity 4-6mm	Glendyne 4-5mm	Cupa R6 4-5mm	World's Best Bmks
Water Absorption (%)	ASTM C121-06	0.19	0.25	0.21	0.29	< 0.25
Durability Grade (S1, S2 or S3)	ASTM C406-06	S1	S1	S1	S1	S1
Service Life (years)	ASTM C406-06	75+	75+	75+	75+	75+
Modulus of Rupture (MPa) - longitudinal	EN 12326-1:2004	91	85	77	74	> 62
Carbon content (%)	EN 12326-1:2004	< 0.1	0.38	0.61	0.59	-
Non carbon content (%)	EN 12326-1:2004	-	0.5	0.99	0.3	< 2
Absorption Class (A1, A2 or A3)	EN 12326-1:2004	A1	A1	A1	A1	A1
Freeze Thaw Test Class (T1, T2 or T3)	EN 12326-1:2004	T1	T1	T1	T1	T1
Sulphur Dioxide Exposure Class (S1, S2 or S3)	EN 12326-1:2004	S1	S1	S1	S1	S1