Variables:
(1) amount of water (light to heavy)
(2) duration of exposure (brief to prolonged)
(3) direction of water (limited to any)
(4) pressure (none to very high)
Terms and water protection:
(1) showerproof: light rain of short duration
(2) water resistant: light rain of moderate duration
(3) waterproof: light to heavy rain of any duration
Features of a waterproof garment may include:
(1) material with waterproof rating
(2) protected seams
(3) ability to mobilize sweat (breathability)
Rating for waterproof in millimeters of water: the height of a column of water needed before the material starts to leak
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Rating in 10^3 mm
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Moisture Resistance
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Pressure Resistance
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<= 5
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low
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none
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6 to 10
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low to moderate
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light
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11 to 15
|
moderate
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moderate
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16 to 20
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high
|
high
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> 20
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very high
|
very high
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