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FR Breather Membrane WHITE (ME055) - Breather Membrane

Verified by manufacturer 6 months ago

illbruck – a brand of Tremco CPG UK Ltd

A bonafide non-combustible air and vapour permeable breather membrane suitable for enclosed masonry clad facades or for use as a base layer in a rainscreen façade applied directly to the backing wall.

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Application

ME055 is suitable for:

  • Use in new builds and in refurbishment projects.
  • Enclosed façades e.g. masonry, decorative cement panels, rock panel or similar.
  • Application within high rise buildings, timber frame construction, public buildings and off-site construction. 
  • As a base layer in a rainscreen façade applied directly to the backing wall.


ME055 is typically over sheathing boards or other substrates with a reaction to fire of at least Class A2-s1,d0. The overlapping seams and perimeter edges are sealed with illbruck ME356 FR Sealing Tape. In addition, illbruck SP025 Fire Membrane Adhesive may also be used to provide an enhanced air and water-tight connection to adjacent walls and floor junctions.

Description

illbruck ME055 FR Breather Membrane is a monolithic glass fibre-reinforced breather membrane that achieves a Class A1 Reaction to Fire according to BS EN 13501-1. ME055 is highly suited to applications in buildings that have been classified as "Relevant Buildings" as defined in Approved Document B, April 2019. Often used in conjunction with other illbruck slit-to-width interface sealing membranes at window and door openings or other linear joints to provide fully compatible and integrated building protection wrap around the external backing wall in a framed and sheathed construction.


Features and benefits:

  • Easy to cut and install.
  • Permanently UV-resistant behind partly open façades or three months prior to cladding.
  • Wind and driving rain resistant.
  • High temperature resistance.
  • W2 water resistance.
  • Classified as a breather membrane with an Sd value of 0.03 m.
  • Class A1 Reaction to Fire according to BS EN 13501-1.
  • Supplied on rolls of 1.5 x 35 m.

General information

Color

White

Finish

Matt

Textured

Material

Glass Fibre

Shape

Formless

Rectangle

Length

50000 mm

Width

1500 mm

Height

-

Manufacturer guidance

Membrane thickness.

Warranty description

Other

Guidance for specification option:

Any product which has been applied (a) in accordance with Tremco CPG UK Ltd written instructions and (b) in any applications recommended by Tremco CPG UK Ltd, but which is proved to be defective, will be replaced free of charge.

Uniclass

Pr_25_57_10_94 Vapour-permeable sheetsPrimary

CAWS

P10/65 Breather membrane

P10/320 Breather membrane

H92/785 Breather membrane

Specification data - Vapour-permeable sheets

Standard

To BS EN 13859-2.

Performance criteria

-

Water vapour properties

Water vapour resistance to BS EN ISO 12572; 0.15 MN. s/g.

Fire performance

Reaction to fire: To BS EN 13501-1, Class A1.

Tensile properties

Tensile strength to BS EN 12311-1, 3500 N/50 mm, ± 400 (longitudinal); 1800 N/50 mm, ± 400 (transverse).

Class (minimum)

W2.

Guidance for specification option:

Tested in accordance with BS EN 13111.

Manufacturer guidance

Resistance to water penetration to BS EN 13859-2.

Material

Glass fibre fabric.

Thickness (minimum)

0.18 mm.

Reflective face

Non-reflective.

Execution

-

Manufacturer guidance

illbruck ME055 A1 Breather Membrane (White), W2 is unfurled and applied directly from the log to the substrates. The membrane is secured with tape to the structure and overlapping seams to create a homogenous and continuous protection layer. Applications should start from the bottom of the building and work upwards overlapping subsequent horizontal and vertical layers by a minimum of 100 mm. Perimeters and overlapping seams are sealed with illbruck ME355 FR Sealing & Joining Tape A2 or other tape specified by illbruck. Some details e.g. floor junction or solid walls may require the use of illbruck SP025 Fire Membrane Adhesive in addition to the illbruck ME355 FR Sealing & Joining Tape A2.

Colour

Dull white, non reflective.

Elongation at break (to BS EN 12311-1)

5%, ± 2 (longitudinal); 4%, ± 2 (transverse).

Tear resistance (to BS EN 12310-1)

350 N, ± 50 (longitudinal); 420 N, ± 50 (transverse).

Air permeability

To EN 13859 (Test Method EN 12114), 27.0 m³/(hr x m² x 50 Pa).

Water vapour diffusion resistance

To EN 12572, 177.

Water vapour permeability

To EN 12572, 177.

Manufacturer guidance

Water Vapour Permeability (µ).

Water vapour permeability in SD

To EN 12572, 0.03 m.

UV resistance

3 months without cladding.

Application temperature

+5°C to +40°C.

Service temperature

-36°C to +150°C.

Sustainability data

Country of material origin

France

Country of product manufacture

France

Literature

Product Summary Sheet (FR Breather Membrane WHITE)

Product Summary Sheet (FR Breather Membrane WHITE)

FR Breather Membrane WHITE (ME055)

FR Breather Membrane WHITE (ME055)

Illbruck ME055 EPD Certificate

Illbruck ME055 EPD Certificate

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