A hurricane is a large atmospheric vortex capable of producing sustained winds of 120 mph or more. When a hurricane passes a building, the winds become turbulent and change direction. During the hours of a storm, loose objects and damaged buildings add to windborne debris, which can impact windows and doors

KeepSafe plastic interlayer in laminated glass screens out over 99% of the sun's damaging ultraviolet, helping to protect interior drapes, carpets and furnishings from fading and deterioration caused by UV rays.

KeepSafe standard colors offer a wide range of colors, color stability and a cost-effective means to achieve the design versatility of custom-color glass.

KeepSafe helps dampen the transmission of unwanted sounds and disturbing noises from outside. Laminated glass made with Saflex will increase the Sound Transmission Class (STC) rating of a window.

 Typical Standard for Windborne Debris Impact Test 
Large Missile Impact Test

(for windows doors, skylights, glazing, and shutters between grade and 30 feet above grade)
Three identical test specimens

Missile is 2 x 4 timber weighing 9 lbs.

Two impact points at 50ft/sec: one at center, one within 6" of a corner.

All three specimens must survive impacts without penetration before proceeding to cyclic pressure loading.
Or
Small Missile Impact Test

(for windows doors, skylights, glazing, and shutters above 30 feet above grade)

 Three Indentical specimens

Missile is steel ball or gravel weighing 2g.

30 small missile impacts at 80 ft/sec: 10 at center, 10 near long edge, 10 near corner.

All three specimens must survive impacts without penetration before proceeding to cyclic pressure loading.
Followed by
Cyclic Pressure

(applied to all three specimens following large or small missile impact test: duration of each cycle is 1-3 seconds; all inward-acting pressure cycles are applied first, followed by outward-acting cycles)
Inward - Acting Pressure
Outward - Acting Pressure
Range
Cycles
Range
Cycles
0.2Pmax--0.5Pmax
3,500
0.3Pmax--1.0Pmax
50
0.0Pmax--0.6Pmax
300
0.5Pmax--0.8Pmax
1,050
0.5Pmax--0.8Pmax
600
0.0Pmax--0.6Pmax
50
0.3Pmax--1.0Pmax
100
0.2Pmax--0.5Pmax
3,350
Pmax is design wind pressure (inward and outward) from the building code, based on an unbreached building envelope.
Pass/Fail Criteria
All three specimens must survive the missile impact without penetration. If no tear or crack longer that 5", or no opening through which a 3" sphere can pass, has formed in any of the three specimens upon completion of the pressure cycles, they are deemed to have passed the test.

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