Air Infiltration, Water Resistance and Uniform Load Testing-
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Fenestration products serve as openings in the building envelope.
It is imperative that windows and doors are weather tight and
structurally sound. This test method is used to determine the rate of
air leakage, water resistance, structural performance, forced entry
resistance, among other tests. The test results facilitate manufacturer,
consultants and code officials the ability to ensure that the product
will meet building design and building codes.
Air filtration is determined by a high precision mass flow meter while
the specimen is subjected to a constant air pressure differential. For
water resistance tests, specimens are checked for water penetration
under cyclic and static air pressure, which simulates differing storm
conditions. Fenestration Testing Laboratory test apparatus ensures that
all test samples receive the necessary water application at the required
test pressure conditions.
Test results determine if water penetration occurs inside the product or
wall cavity. For the uniform load tests, the specimen’s structural
integrity is evaluated while prescribed static high pressure
differential is created across the specimen, simulating both positive
and negative wind loads. Fenestration Testing Laboratory uses precise
digital instrumentation to measure permanent set and deflection readings
under ratios established by the standard.