NBS Source
I'm a manufacturer

OBEX CORTEX 0271FR UltraBoard - Class A2 Including 0272FR Jointing Tape and 0273FR Sealing Patches

Verified by manufacturer 3 days ago

OBEX Protection Ltd Third party certifications:
  • KIWA BDA

    KIWA BDA

    Certificate type

Score'N'Snap cement sheathing board with integral breather membrane.

Jump to:
+44 (0)1905 337800 Website

Application

  • External sheathing - onto steel and timber frame systems.
  • Modular construction – offsite solution.
  • Recladding and remediation – replacement of existing sheathing boards.
  • Consult the OBEX Technical Team for other applications.

Description

OBEX CORTEX 0271FR UltraBoard is a next-generation score-and-snap cement-based sheathing board with integral breather membrane, which removes the requirement to apply an extra breather membrane over the sheathing board on site. It is lightweight whilst providing exceptional durability and is cut using the score and snap method. This cutting method is distinctive for a cement-based sheathing board, eliminating the dust and noise usually associated with traditional saw cutting.

Features and benefits:

  • Highly durable.
  • 12 months UV exposure.
  • Score and Snap technology.
  • KIWA approved.
  • Removes the need to install a breather membrane.
  • OBEX CORTEX Interface Sealing Membranes (ISM's) are fully tested and approved for sealing UltraBoard to glazing elements and slab/ column junctions.
  • No joint sealant required (deflection head gap should be sealed with 0280FR Board Sealant).

General information

Color

Black

Grey

Finish

Smooth

Material

Cementitious

Shape

Rectangle

Length

2400 mm

Width

1200 mm

Height

12.7 mm

Uniclass

Pr_25_71_11_25 Fibre-reinforced cement boardsPrimary

CAWS

M40/470 Intermediate substrate

M40/27 Intermediate substrate

H20/10 Sheet cladding

H20/150 Sheet cladding (attached to metal support systems)

H20/155 Sheet cladding (attached to timber battens)

Specification data - Fibre-reinforced cement boards

Standard

To BS EN 12467.

Fire rating

To EN 13501-1, Class A2-s1,d0.

Weather resistance

12 months exposure.

Bending strength

To EN 12467, 5.03 MPa.

Manufacturer guidance

Modulus of rupture (MOR).

Sheet size

-

Nominal thickness

12.7 mm.

Length

2400 mm.

Bespoke.

Guidance for specification option:

Available up to 3400 mm; insert requirements.

Width

1200 mm.

Edges

Square.

Finish as delivered

Uncoated.

Colour

Black on front, grey on reverse.

Breather membrane

Integral woven glass fibre breather membrane.

Density

1000 kg/m³ (±10%).

Weight

36.8 kg per board.

Fire resistance

To EN 1364-1, EI60+.

Water vapour diffusion resistance

To EN ISO 12752, 0.521.

Water absorption

To EN 12467, 11%.

Thermal conductivity (maximum)

To EN 12664 and ISO 8302, 0.223 W/mk.

Compressive strength options

Compressive strength to EN 789, 2.32 N/mm²; 2.28 N/mm².
Compressive modulus of elasticity to EM 789, 1900 N/mm²; 2233 N/mm².

Sustainability data

Material

Cementitious

Expected Life

60 year

Third party certifications

KIWA BDA

KIWA BDA

OBEX CORTEX 0271FR UltraBoard - KIWA BDA

Literature

OBEX CORTEX 0271FR UltraBoard DoP

OBEX CORTEX 0271FR UltraBoard DoP

OBEX CORTEX 0271FR UltraBoard_TDS

OBEX CORTEX 0271FR UltraBoard_TDS

OBEX CORTEX 0271FR UltraBoard SDS

OBEX CORTEX 0271FR UltraBoard SDS

OBEX CORTEX 0272FR UltraBoard Jointing Tape SDS

OBEX CORTEX 0272FR UltraBoard Jointing Tape SDS

OBEX CORTEX 0272FR UltraBoard Jointing Tape TDS

OBEX CORTEX 0272FR UltraBoard Jointing Tape TDS

OBEX CORTEX 0273FR UltraBoard Sealing Patches TDS

OBEX CORTEX 0273FR UltraBoard Sealing Patches TDS

OBEX CORTEX 0271FR UltraBoard Installation Guide

OBEX CORTEX 0271FR UltraBoard Installation Guide

OBEX CORTEX 0273FR UltraBoard Sealing Patches SDS

OBEX CORTEX 0273FR UltraBoard Sealing Patches SDS

Case studies

Elephant & Castle

Elephant & Castle

Similar products from OBEX Protection Ltd

OBEX CORTEX 0270FR Class A1 Score’N’Snap Cement Sheathing Board

OBEX CORTEX 0270FR Class A1 Score’N’Snap Cement Sheathing Board