WEATHER DEFENCE

ADVANTAGES

  • 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

 

 

 

 

External Gypsum Sheathing Board

Weather Defence is a revolutionary new external linings board, faced with water repellent material for superior weather protection. Strong, highly moisture resistant and non-combustible compliant. Weather Defence is a faster way to a weathertight building compared to traditional rigid air barrier board products.

Weather Defence is an award-winning gypsum external sheathing board which is transforming building envelope construction and performance 

General technical properties
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Type

Description

Performance Value

Units

General

Density

860

kg/m3

Mechanical Properties

Flexural strength longitudinal direction according to BE EN 520:2004

680

N

 

Flexural strength transverse direction according to BE EN 520:2004

310

N

 

Elastic Modulus longitudinal direction according to BS EN 789:2004

3600

MPa

 

Elastic Modulus transverse direction according to BS EN 789:2004

3150

MPa

 

Impact resistance according to BS EN 15283-1:2008

GM-I

 

 

Compressive Strength

9

N/mm2

Fire

Classified as Non Combustible in accordance with NCC Clause C1.9 (e) (i)

 

 

Thermal

Thermal Conductivity according to BS EN 12667:2001

0.25

W/mK

 

Thermal Resistance (12.5mm board)

0.05

m2.K/W

Permeability

Water Vapour Resistance (12.5mm board) according to BE EN ISO 12572:2001

0.49

MNs/g

 

Water Vapour Resistance factor (12.5mm board) according to BE EN ISO 12572:2001

8

 

Moisture Resistance

Water Uptake (2hrs immersion) according to EN 520:2005

<3

%

 

Surface Water Absorption (2hr Cobb test) according to EN 520:2005

<100

g/m2

 

Dimension Change (20oC/ 30%-65% RH),longitudinal direction according to BS EN 318:2002

0.09

mm/m

 

Dimension Change (20oC/ 65%-85% RH),longitudinal direction according to BS EN 318:2002

0.11

mm/m

 

Dimension Change (20oC/ 30%-65% RH),transverse direction according to BS EN 318:2002

0.09

mm/m

 

Dimension Change (20oC/ 65%-85% RH),transverse direction according to BS EN 318:2002

0.05

mm/m

Mould Resistance

Resistance to mould growth - ASTM 03273

10/10

No mould growth

Pull-through

(with 3 x safety factor)

Pull-through resistance (23oC / 50%RH), Siniat Wet Area High Thread Fixing to EN1383

312

N

 

Pull-through resistance (23oC / 50%RH), Siniat Wet Area Self Drilling Fixing to EN1383

326

N

Shear Strength

Shear Resistance according to EN520

0.88

kN/Screw

Pull-through Resistance

(centre)

Siniat GTEC Wet Area Self Drilling

0.33

kN

 

Siniat GTEC Wet Area High Thread

0.31

kN

Type

Description

Performance Value

Units

General

Density

860

kg/m3

Mechanical Properties

Flexural strength longitudinal direction according to BE EN 520:2004

680

N

 

Flexural strength transverse direction according to BE EN 520:2004

310

N

 

Elastic Modulus longitudinal direction according to BS EN 789:2004

3600

MPa

 

Elastic Modulus transverse direction according to BS EN 789:2004

3150

MPa

 

Impact resistance according to BS EN 15283-1:2008

GM-I

 

 

Compressive Strength

9

N/mm2

Fire

Classified as Non Combustible in accordance with NCC Clause C1.9 (e) (i)

 

 

Thermal

Thermal Conductivity according to BS EN 12667:2001

0.25

W/mK

 

Thermal Resistance (12.5mm board)

0.05

m2.K/W

Permeability

Water Vapour Resistance (12.5mm board) according to BE EN ISO 12572:2001

0.49

MNs/g

 

Water Vapour Resistance factor (12.5mm board) according to BE EN ISO 12572:2001

8

 

Moisture Resistance

Water Uptake (2hrs immersion) according to EN 520:2005

<3

%

 

Surface Water Absorption (2hr Cobb test) according to EN 520:2005

<100

g/m2

 

Dimension Change (20oC/ 30%-65% RH),longitudinal direction according to BS EN 318:2002

0.09

mm/m

 

Dimension Change (20oC/ 65%-85% RH),longitudinal direction according to BS EN 318:2002

0.11

mm/m

 

Dimension Change (20oC/ 30%-65% RH),transverse direction according to BS EN 318:2002

0.09

mm/m

 

Dimension Change (20oC/ 65%-85% RH),transverse direction according to BS EN 318:2002

0.05

mm/m

Mould Resistance

Resistance to mould growth - ASTM 03273

10/10

No mould growth

Pull-through

(with 3 x safety factor)

Pull-through resistance (23oC / 50%RH), Siniat Wet Area High Thread Fixing to EN1383

312

N

 

Pull-through resistance (23oC / 50%RH), Siniat Wet Area Self Drilling Fixing to EN1383

326

N

Shear Strength

Shear Resistance according to EN520

0.88

kN/Screw

Pull-through Resistance

(centre)

Siniat GTEC Wet Area Self Drilling

0.33

kN

 

Siniat GTEC Wet Area High Thread

0.31

kN

Board dimensions
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BOARD DIMENSIONS

Thickness (mm) Standard dimensions (mm x mm) Number of boards per pallet Surface per pallet (m²/pallet) Weight per m² of sheet (approximate kg/m²) Weight per pallet (approximate kg)
12.5
2400 x 1200
40
115.2
10.8
1250

WEATHER DEFENCE is manufactured under a quality management system certified in accordance with ISO 9001: 2008. The product has passed the site audit in accordance with the environmental standards of ISO 14001: 2004 and occupational health and safety requirements of OHSAS 18001: 2007.

BOARD DIMENSIONS

Thickness (mm) Standard dimensions (mm x mm) Number of boards per pallet Surface per pallet (m²/pallet) Weight per m² of sheet (approximate kg/m²) Weight per pallet (approximate kg)
12.5
2400 x 1200
40
115.2
10.8
1250

WEATHER DEFENCE is manufactured under a quality management system certified in accordance with ISO 9001: 2008. The product has passed the site audit in accordance with the environmental standards of ISO 14001: 2004 and occupational health and safety requirements of OHSAS 18001: 2007.

Installation
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Health & Safety
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HEALTH & SAFETY

No special precautions are required. However, to avoid potential for dust generation exists, please wear appropriate personal protection gear (safety goggles, protective clothing and dust mask). For more information please check the material safety data sheet, available upon request.

A health and safety data sheet is available from Promat and, as with any other material, should be read before working with the board.

WASTE DISPOSAL

The board is not classified as a dangerous substance so no special provisions are required regarding the transportation and the disposal of the product to landfill. They can be placed in on-site rubbish skips with other general building waste which should then be disposed by a registered contractor in the appropriate and approved manner.

HEALTH & SAFETY

No special precautions are required. However, to avoid potential for dust generation exists, please wear appropriate personal protection gear (safety goggles, protective clothing and dust mask). For more information please check the material safety data sheet, available upon request.

A health and safety data sheet is available from Promat and, as with any other material, should be read before working with the board.

WASTE DISPOSAL

The board is not classified as a dangerous substance so no special provisions are required regarding the transportation and the disposal of the product to landfill. They can be placed in on-site rubbish skips with other general building waste which should then be disposed by a registered contractor in the appropriate and approved manner.

Documents
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Safety Datasheet (SDS)

Safety Datasheet (SDS)

Safety Datasheet (SDS)

Safety Datasheet (SDS)