NBS Source
I'm a manufacturer

Klasse G-board® Gypsum External Sheathing Board (Outwear) - External Sheathing Board

Verified by manufacturer 5 months ago

Klasse Group Ltd Third party certifications:
  • BBA Agrément Certificate

    BBA Agrément Certificate

    Certificate type

High-performance external gypsum-based sheathing board made with special glass fibre and is durable against fire, moisture, mould and impact.

Jump to:
+44 (0)1432 842 030 Website

Application

Used as an external sheathing board to provide weather protection to a lightweight steel frame construction prior to the installation of external wall insulation and facade system. Also suitable for modular and timber-framed buildings.


To achieve weather tightness, Klasse external sheathing board should be sealed with FireFend™ silicone sealant or joint tape.

Description

Lightweight and easy to carry, it facilitates fast, practical, and economical construction solutions.


Composed of calcium sulphate dihydrate is encased within a glass fibre mat. Additionally nominal amounts of additives such as starch, foaming agent, dispersants, wax and glass fibre.


Klasse external sheathing board is coloured green on the front face and green on the back face.


Features and benefits:

  • Euroclass A1, is fully non-combustible and suitable for structures over 18 m.
  • Extensively tested in a through wall system to achieve 90 mins fire protection (BS EN 1364-1).
  • BBA Certified.
  • High density to mitigate fire, wind and installation damage and ensure you deliver a safe, on-time project.
  • Boasts impressive pull-through strength and high-impact resistance.
  • Easy to handle, 30% lighter than traditional cement boards.
  • Can be cut with a knife - no power tools are required for cutting and minimal dust is produced.
  • Can easily be curved.
  • Can eliminate the need for a breather membrane helping to lessen project costs.
  • Water-resistant with a 12 months exposure guarantee.
  • 12-Year warranty available.

General information

Color

Green

Finish

Matt

Material

Gypsum

Glass Fibre

Shape

Rectangle

Length

2400 mm

Width

1200 mm

Height

12.5 mm

Thickness

Warranty description

12 year

  • 12-month exposure warranty as standard.
  • 12-year warranty available.

Uniclass

Pr_25_71_35_29 Fibre-reinforced gypsum boardsPrimary

CAWS

K11/485 Wall sheathing

Specification data - Fibre-reinforced gypsum boards

Standard

To BS EN 15283-1:2008 + A1:2009, Type GM-H1.

Reinforcement

Glass fibre-reinforced.

Third-party product certification

BBA Certificate 22/6085.

Fire rating

A1 Non-Combustible.

Thickness

12.5 mm.

Edges

Square.

Flexural strength

Perpendicular to liner paper fibres: ≥761 N, parallel to liner paper fibres: ≥601 N.

Thermal conductivity

To BS EN 12524, 0.25 W/mK.

Water absorption

≤5%.

Area weight

≤12 kg/m².

Core

Moisture-resistant.

Paper facings

Moisture-resistant.

Sustainability data

Embodied carbon

A1-A3 (production stage) as defined in BS EN 15804

5.28 kg CO₂ eq/m²

Recyclability

The gypsum core is fully recyclable

Recycled content

1 %

BIM objects

Platform Compatible Version
Revit
-

1

IFC
-

1

Third party certifications

BBA Agrément Certificate

BBA Agrément Certificate

Klasse External Sheathing Board - BBA Certificate

Literature

Klasse G-board Gypsum External Sheathing Board (Outwear) TDS

Klasse G-board Gypsum External Sheathing Board (Outwear) TDS

Klasse G-board Gypsum External Sheathing Board (Outwear) Brochure

Klasse G-board Gypsum External Sheathing Board (Outwear) Brochure

Klasse G-board Gypsum External Sheathing Board (Outwear) DoP

Klasse G-board Gypsum External Sheathing Board (Outwear) DoP

Klasse G-board Gypsum External Sheathing Board (Outwear) MSDS

Klasse G-board Gypsum External Sheathing Board (Outwear) MSDS

Klasse G-board Installation Guide

Klasse G-board Installation Guide

Case studies

E18 Going Green! Queen Mary's Gate, South Woodford, London.

E18 Going Green! Queen Mary's Gate, South Woodford, London.

Klasse On Site Of Multi-Million Pound School Expansion, Bournemouth

Klasse On Site Of Multi-Million Pound School Expansion, Bournemouth

Heathside School, Walton-on-Thames

Heathside School, Walton-on-Thames

Klasse G-board | Castle Exchange, Nottingham

Klasse G-board | Castle Exchange, Nottingham

Klasse G-Board & C-Board | Trident Point, Harrow

Klasse G-Board & C-Board | Trident Point, Harrow

Klasse G-Board | Nelson Street, Belfast

Klasse G-Board | Nelson Street, Belfast

Klasse G-Board | Southgate Hotel, Enfield

Klasse G-Board | Southgate Hotel, Enfield

Klasse G-board | Bungay High School, Suffolk

Klasse G-board | Bungay High School, Suffolk

Klasse G-board | National Gemstone Centre, Carsington

Klasse G-board | National Gemstone Centre, Carsington

Klasse G-board | Rosebank Way, Ealing

Klasse G-board | Rosebank Way, Ealing

Klasse G-board | Thornton House, Newcastle

Klasse G-board | Thornton House, Newcastle

Klasse G-board | Spelthorne Leisure Centre, Surrey

Klasse G-board | Spelthorne Leisure Centre, Surrey

Klasse G-board | Meopham School, Gravesend

Klasse G-board | Meopham School, Gravesend