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Glazing
Glazing Acrylic sheet is a safety glazing material for use in storm doors and windows as well as interior insulating windows. Its strength, weatherability and transparency make it a prime economical material for this use. Impact Resistance
The impact resistance of acrylic sheet meets the safety performance requirements of ANSI Z97.1-1984 for plastic safety glazing materials. Many building codes requiring safety glazing meet this criteria when used in locations such as storm door glazing. Noise Reduction
Table 1A gives typical noise reduction values (Db) for acrylic sheet, over a wide range of audible frequencies. The data demonstrates the good noise reduction performance. Table 1A
| FREQUENCY (H2) | Acrylic Thickness (inch) | | .118" | .236" | .315" | | 100 | 9.4 | 15.0 | 16.6 | | 125 | 11.9 | 16.6 | 19.9 | | 160 | 13.3 | 18.4 | 20.5 | | 200 | 16.3 | 21.1 | 23.3 | | 250 | 18.8 | 24.9 | 26.5 | | 315 | 22.2 | 28.2 | 30.6 | | 400 | 21.1 | 26.6 | 29.1 | | 500 | 22.8 | 28.4 | 30.8 | | 630 | 21.8 | 27.9 | 30.0 | | 800 | 24.8 | 30.7 | 32.9 | | 1,000 | 24.9 | 31.2 | 33.3 | | 1,250 | 27.0 | 32.4 | 34.6 | | 1,600 | 28.9 | 35.2 | 37.6 | | 2,000 | 30.0 | 36.3 | 37.9 | | 2,500 | 32.5 | 37.8 | 38.2 | | 3,150 | 34.0 | 38.2 | 35.5 | | 4,000 | 34.3 | 35.7 | 29.6 | | 5,000 | 34.9 | 29.9 | 31.9 | | Mean SRI | 22.5 | 28.4 | 29.8 | | Weighted Mean SRI | 28.0 | 32.0 | 34.0 | Expansion
Acrylic sheet expands and contracts with temperature and humidity changes eight times as much as glass. To compensate for this movement, the height and width of the acrylic sheet must be cut shorter than the sash opening dimensions, approximately 1/16" per foot less than the window frame opening. Refer to Figure 1B | Figure 1B | | Sash Glazing Intermediate | Sash Glazing Large Panes |  |
  
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