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Siniat Weather Defence Board

Third party certifications:
  • BBA Agrément Certificate

    Certificate type

Siniat

Glass fibre mat-faced, gypsum-based sheathing board.

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+44 (0)1275 377773 www.siniat.co.uk
Application

For use externally as a sheathing board.

Description

Weather Defence is a revolutionary new external sheathing board, faced with water repellent material for superior weather protection. Strong, highly moisture resistant and A1 non combustible. Weather Defence is a faster way to a weather tight building compared to traditional sheathing board products. Complies with BS EN 15283 Type GM-H1, GM-I and GM-F..

Features and benefits:

  • Dimensionally stable, reliable airtightness
  • Quick and easy to cut and install saving time and reducing installed cost
  • Water, weather and mould resistant, can now be left installed and exposed for up to 12 months on site before you need to complete the final cladding
  • No need for cutting area, power tools or dust extractor
  • Can eliminate the need for breathable membrane saving time and reducing installed cost
  • Double BBA certified
  • Fully A1 non-combustible, compliant for structures above 18m.

Application:

For use externally as a sheathing board.

General information
Features

It is strong, highly moisture-resistant, non-combustible and has improved workability compared to traditional sheathing board products. Manufactured to BS EN 15283‐1 types GM‐F, GM‐H1, GM‐I and CE marked

Finish

Matt-faced

Material

Aerated calcium sulfate di-hydrate with liners constructed from polymers and glass fibre with moisture- and fire-resistant fillers/ fibres enclosed in gypsum core. Core and facers are bonded with starch. PVA edge glue. The board contains a water-resistant additive and a biocide to inhibit mould growth

Size

1200 x 2400 mm (w x l)

Uniclass 2015
Pr_25_71_52_52 Moisture-resistant gypsum plasterboardsPrimary
Specification data - Moisture-resistant gypsum plasterboards
Product Reference

Siniat Weather Defence Board

Standard

To BS EN 12524, BS EN 12572, BS EN 15283‐1 and Euroclass A1 to BS EN 13501‐1, Class 0 to Building Regulations (E&W)

Core

Moisture resistant

Paper facings

Moisture resistant

Nominal

12.5 mm

10.8 kg/m², 860 kg/m³, thermal resistance (R-value): 0.05 m²K/W.

Edge profile

Square edge

Additional properties

Thermal conductivity (to BS EN 12524): 0.25 W/m·K, water vapour resistance factor (to BS EN 12524): μ = 8, moisture content: <2%, moisture resistance: <3% (after two hours total immersion in water), longitudinal breaking load (to BS EN 15283‐1): ≥680 N, transverse breaking load (to BS EN 15283‐1): ≥310 N, reaction to fire: Non‐combustible, Euroclass A1 to BS EN 13501‐1, Class 0 to Building Regulations (E&W)

Standard product features

Colour:

Purple on the front face and white on the back face.

Features:

It is strong, highly moisture-resistant, non-combustible and has improved workability compared to traditional sheathing board products. Manufactured to BS EN 15283‐1 types GM‐F, GM‐H1, GM‐I and CE marked.

Finish:

Matt-faced.

Material:

Aerated calcium sulfate di-hydrate with liners constructed from polymers and glass fibre with moisture- and fire-resistant fillers/ fibres enclosed in gypsum core. Core and facers are bonded with starch. PVA edge glue. The board contains a water-resistant additive and a biocide to inhibit mould growth.

Size:

1200 x 2400 mm (w x l).

Recycled content:

12% post-consumer content.

Recyclability:

Gypsum core is recyclable.

Embodied carbon:

0.241 kgCO2e/kg, cradle to gate.

Red Listed materials:

No.

Country of origin:

France.

Environmental information
Embodied carbon

0.241 kgCO2e/kg, cradle to gate

Recyclability

Gypsum core is recyclable

Recycled content

12% post-consumer content

Third party certifications
  • 10/4725 : Product Sheet 4
  • 10/4725 : Product Sheet 5
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