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Results of Testing the Product to the CCMC Technical Guide for "Sheathing Membrane, Breather Type"

Property

Unit

Requirement

Result

Sheet width

Tolerance: –6 mm of specified width

Pass

Breaking strength machine direction

N

≥ 180

229

Breaking strength cross-machine direction

≥ 160

213

Water vapour permeance

ng/(Pa·s·m2)

≥ 170

518

Water ponding

No leakage

PassFootnote (1)

Tensile strength after UV exposure machine direction

% retention of  original 

≥ 90

94

Tensile strength after UV exposure cross machine direction

% retention of  original 

≥ 90

90

Tensile strength after UV and heat aging machine direction

% retention of  original 

≥ 85

90

Tensile strength after UV and heat aging cross machine direction

% retention of  original 

≥ 85

85

Water vapour permeance after UV and heat aging

ng/(Pa·s·m2)

≥ 170

719

Water ponding after UV and heat aging

No leakage

PassFootnote (1)