CUPACLAD® is a highly durable tectonic slate that is installed as part of a ventilated façade system. With a durability of over 35 years, natural slate is the most resistant material used for cladding. Unaltered, there is no need for the slate to be re-coated. Key technical specifications:

• Slate Size: 400 mm x 200 mm
• Nominal Thickness: 7.65 mm
• Slates per m2: 16.7
• Slate Weight per m2: 30kg/m2

• CUPACLAD® Cladding System is a non-load-bearing construction system. It does not contribute to the stability of the wall on which it is installed.
• To allow for longitudinal expansion of the vertical rails and horizontal profiles, a minimum gap of 1 mm per metre length between adjacent horizontal rails and vertical profiles should be provided. Movement joints in the cladding system must coincide with a movement joint in the substrate wall.
• The fixing of rainwater goods, satellite dishes, clotheslines, and similar items is outside the scope of this document. In all cases, advice should be sought [email protected]
• Due to the nature of the manufacturing process, some unevenness on the slates may occur, but this is unlikely to be excessive or obtrusive

• Structure - B1: Clause B1.3.1, B1.3.2, B1.3.3 (a, e, f, h, j, q) - Alternative Solution CUPACLAD® has been tested to BS EN12326-2:2011 "Characteristic Modulus of Rapture" - Slate Thickness 7.65 mm, the result, Longitudinal 54 MPa, Transversal 35 MPa. When tested for dynamic wind load, the CUPACLAD® Cladding System, installed using an 800 mm and 1000 mm spacing between the vertical rails and the wall brackets respectively, achieved the design wind load resistance of 3.4 kPa. Refer to BBA Certificate no Agrement www.cupapizarras.com/wpcontent/uploads/2018/11/bba_cupaclad_systems_18_5532.pdf Tested to ASTME330/E330M-14 Standard Test Method for Structural Performance of Curtain Walls Refer Intertek H7897.01-109-44 Ultimate Positive Design Pressure ± 5760 Pa (±120.30 psf) and Ultimate Negative Design Pressure ± 4800 Pa (±100.25 psf) Refer to www.thebuildingagency.co.nz
•  Durability - B2: Clause B2.3.1 (b) – Alternative Solution The durability and service life of the system will have a service life of excess of 35 years. Due to CUPACLAD® low water absorption, the slates are not susceptible to frosting. Tests have also confirmed that the slates are not susceptible to hydrothermal ageing. Refer to BBA Certificate no Agrement www.cupapizarras.com/wp-content/uploads/2018/11/bba_cupaclad_systems_18_5532.pdf
• Fire Performance – C: Clause C3.7 (a) – Acceptable Solution CUPACLAD® is tested to AS/NZS1530.1 and deemed non-combustible, refer to https://www.cupapizarras.com/wp-content/uploads/2020/03/cupaclad_as1530.1_combustibility_test.pdf
• External Moisture - E2: Clauses E2.3.2 Alternative Solution The slates have a mean water absorption value of 0.16 and 0.17% to BS EN12326.2 Refer to www.cupapizarras.com/wp-content/uploads/2018/11/bba_cupaclad_systems_18_5532.pdf
• Hazardous Building Materials - F2: Clause F2.3.1. Alternative Solution Dangerous substances emission - none in conditions of use as external roofing or cladding. (Refer to UNE EN 12326-1) EPD- DAPcons. c-004.105

The durability and service life of the system will have a service life of excess of 35 years. Due to CUPACLAD® low water absorption, the slates are not susceptible to frosting. Tests have also confirmed that the slates are not susceptible to hydrothermal ageing. 

• BBA certified
• Guaranteed up to 20 years
• No maintenance
• Fire resistant
• Tested up to 3.2 kPa wind load
• Capable of enduring extreme temperatures
• Each slate is handcrafted by skilled 'splitters', with no additional treatment required
• Natural slate is only subject to extraction and mechanical transformation; there are no chemical or heating processes involved as with alternative materials. This and its unparalleled durability result in natural slate being a material with an extremely low carbon footprint.
• CUPA PIZARRAS complies with the ISO 14001 certification, reflecting its plan to protect the environment. www.cupapizarras.com