Wells, VT (USA)
Roofing & Cladding slates
Un-fading Purple
Deep Purple Slate, at times almost Burgundy in color.
May have occasional green marks or inclusions.
Imperials
From 12″ x 08″ up to 24″ x 14″.
6-9mm (1/4” – 3/8”): 39,5 kgs/m2; 1086 Lbs/square
10-15mm (3/8” – 1/2″): 73 kgs/m2; 1700 Lbs/square
Dimension and Dimensional Variation
Complies
Nominal Thickness and Variation
Complies
Mechanical Resistance, Characteristic MoR
Transverse: 34.7 N/mm2 / Longitudinal: 46.0 N/mm2
Mechanical Resistance, Mean Failure Load
Transverse: 50.7 N/mm2 / Longitudinal: 59.1 N/mm2
Carbonate Content
0.10% Complies
Water Absorption
Complies with code W1 0.21%
Thermal Cycling
T1 Complies
Sulphur Dioxide Exposure
S1 Complies
Non-Carbonate Carbon Content
0.0%
Release of Dangerous Substances
None in conditions of use as roofing or external cladding
External Fire Performance
Deemed to satisfy
Reaction to Fire
Deemed to satify Class A1
Wells, VT (USA)
VERMONT UNFADING PURPLE Slate is certified by the European and American laboratories.