natural slate roofing
NATURAL SLATE NATURAL SLATE CUPA 25

CUPA 25

Non-carbonated slate formed by tectonic compression. Blue Black slate with thin laminations and a smooth surface. Split to an average thickness of 3.75 mm, 5 mm, 7 mm and 9 mm.

ORIGIN
Quarry Chano Castiello. Benuza (León) Spain.
Operating since 1991.

PRODUCTION
6.000 tm/year

FORMATS
Rectangular, Bullnose, Rhomboid, Ogival, Innova.

SIZES (cm)
25x15 - 50x38

Note. If you are interested in other formats contact us

SELECTIONS
R, H, NATURAL

TECHNICAL SPECIFICATIONS

WATER ABSORPTION 0,30% Code : W1 (< 0,4%)
CONTENTS OF CARBONATE NON CARBONATED 0,55% Fulfill (< 2%)
MOR CHARACTERISTIC Transverse 39 MPA
Longitudinal 55 MPA
SO2 EXPOSURE TEST S1
THERMAL CYCLE TEST T1
FREEZE THAW TEST Fulfill < 0,4%
THICKNESS (mm) 3.75 - 5 - 7 - 9

Note. Technical documentation (declaration of performance, certifcations, ...) in the PRO AREA

INTERNATIONAL CERTIFICATIONS

CUPA 25 roofing slates meet the following international standards:

  • EN 12326
  • BS 680: Part 2

FORMATS
  • Square
  • Rectangular
  • Bullnose
  • Rhomboid
  • Irregular
  • half moon
  • Schuppen
  • Spitzort
  • Spitzwinkel
  • Waben
  • Uni
  • Ogival
  • Fischschup
  • 90º Sawn
  • 74º Sawn
  • Innova