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)
Size range available from 25x15 to 50x38

Note. If you are interested in other formats contact us

TECHNICAL SPECIFICATIONS

WATER ABSORPTION 0,30% Code : W1 (< 0,4%)
CONTENTS OF CARBONATE NON CARBONATED 0,55% Fulfill (< 2%)
MOR CHARACTERISTIC 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