Product Details

Description

Probreathe® A2 is an airtight woven glass fibre membrane with a PU coating. The membrane combines breathability, good water resistance and airtightness in one membrane. It has a Reaction to Fire classification of A2-s1,d0 when installed freehanging or onto a substrate which is minimum A2-s1,d0.

Key Points
A2 Reaction to Fire Classification
Increased airtightness over traditional breather membranes
Vapour permeable membrane for use either directly onto sheathing or over insulation.
Ideal for use in rainscreen/facade construction
Suitable for applications over 18m (11m in Scotland)
Robust and durable wall membrane
Allows temporary protection of the building until the primary external covering is installed
Specification
Width 1.5m
Length 50m
Weight 230g/m²
Thickness 0.20mm
Water Vapour Resistance Sd-Value 0.095m
Reaction to fire A2-s1, d0
Resistance to air penetration 0.006m³/(h x m² @ 50Pa)
Application

Probreathe A2 is partially fixed to the sheathing board using Probreathe FR Duo Tape. Horizontal laps should be a minimum 150mm and vertical overlaps should be a minimum 100mm. These are sealed using Probreathe FR Tape.

Description

Probreathe® A2 is an airtight woven glass fibre membrane with a PU coating. The membrane combines breathability, good water resistance and airtightness in one membrane. It has a Reaction to Fire classification of A2-s1,d0 when installed freehanging or onto a substrate which is minimum A2-s1,d0.

Key Points
A2 Reaction to Fire Classification
Increased airtightness over traditional breather membranes
Vapour permeable membrane for use either directly onto sheathing or over insulation.
Ideal for use in rainscreen/facade construction
Suitable for applications over 18m (11m in Scotland)
Robust and durable wall membrane
Allows temporary protection of the building until the primary external covering is installed
Specification
Width 1.5m
Length 50m
Weight 230g/m²
Thickness 0.20mm
Water Vapour Resistance Sd-Value 0.095m
Reaction to fire A2-s1, d0
Resistance to air penetration 0.006m³/(h x m² @ 50Pa)
Application

Probreathe® A2 is an airtight woven glass fibre membrane with a PU coating. The membrane combines breathability, good water resistance and airtightness in one membrane. It has a Reaction to Fire classification of A2-s1,d0 when installed freehanging or onto a substrate which is minimum A2-s1,d0.

Datasheets, Guides & Documents

Techincal Datasheets (TDS)

Proctor Probreathe A2 Datasheet (November 2023)
Proctor Probreathe A2 Datasheet Performance Specification (18 February 2022)

Install Guide

Proctor Probreathe A2 Installation Guide (June 2024)
Proctor Probreathe A2 User Guide (January 2022)

PROCTOR Probreathe A2 Airtight Membrane & PU Coating - 1.5m x 50m

Probreathe® by A. Proctor Group
A Proctor Group
75 m² Coverage

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Product Code: PROC/PBA2

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