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Leak Barriers / Weather Barrier / Housewraps
Leak Barriers / Weather Barrier / Housewraps

Leak barriers / Weather barrier / Housewraps / Weather resistive barrier / Breathable felt / Water proof and vapor permeable

Breathable Membrane is a water-resistant material which will allow water vapour to pass through when there is a difference in humidity on opposite sides of it.

Breathable membranes are used on the outside of frame walls under the exterior finish material. They have three functions to perform:

to shed moisture and restrict any rain water which penetrates past the exterior finish from reaching the wood wall,to perform as a breather material allowing any moisture within the wall cavity to escape by diffusion through the membrane to the exterior, andto act as a wind barrier to restrict movement of air through the wall.

To qualify for the above functions the breather membrane must have good "water resistance", good "water vapour permeability", and good "air barrier properties".

Breathabe Membrane Specification

Weight: 90, 100, 115, 120, 135, 140, 160 and so on.Width: 1.5MLength: 50M or jumbo roll

Key Features of Breathable Membrane:

CE certificated, high quality with competitive priceWaterproof & vapour permeableHigh breathability (2250g/m2/24h)3-layer laminate (PP+PE+PP)Excellent tensile and nail tear strengthUV stable (90days)Good flexibility and ductilityLight weight and thin, slip-resistant surfaceSimple handling and easy to useEnergy savingFor both wall and roof applicationsLong term durabilityTotally recyclableUse as roofing underlayment or housewrap

Technical data

Testing Standard

Unit

Specifications

M90

M100

M120

M140

MF140

MF160

Weight per unit area

EN1849

G/M2

90±10%

100±10%

120±10%

140±10%

140±10%

160±10%

Width

EN1848

M

1.5

1.5

1.5

1.5

1.5

1.5

Resistance to

Water penetration

EN1928-2000

W1

W1

W1

W1

W1

W1

Water vapour

transmission

EN1931

G/M2.24h

2250

2250

2250

2250

2250

2250

Tensile strength(CD)

EN12311-1

N/50MM

75±15%

100±15%

120±15%

150±15%

150±15%

170±15%

Tensile strength(MD)

EN12311-1

N/50MM

115±15%

150±15%

180±15%

200±15%

200±15%

230±15%

Nail tearing strength(CD)

EN12310-1

N

45±15%

60±15%

80±15%

90±15%

80±15%

90±15%

Nail tearing strength(MD)

EN12310-1

N

55±15%

70±15%

90±15%

100±15%

90±15%

100±15%

Reaction to fire

EN13501-1:2002 EN11925-2

E

E

UV resistance

EN13859-1

Month

3

3

3

3

3

3

Properties alternation after artificial aging

Tensile strength MD/CD

En13859-1

%

-30%/-30%

-30%/-30%

-30%/-30%

-30%/-30%

-30%/-30%

-30%/-30%

penetration

EN13859-1

W1

W1

W1

W1

W1

W1

Leak Barriers / Weather Barrier / Housewraps

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