Select Western Reflections doorglass styles reduce sound transmission from the outside, often a desired feature in densely populated areas.
Western Reflections door glass has a Sound Transmission Class (STC) value; STC is expressed in decibels (dB) and is used to measure a building material's ability to reduce sound. Laboratory testing measures the resistance of partitions such as walls, windows, or doors to the passage of sound.
Western Reflections commissioned third party lab testing on a range of 22" x 64" doorglass configurations; Western Reflections Severe Weather door glass achieved an STC of 35 for clear glass and 37 for decorative glass.
STC is expressed in decibels (dB) and is used to measure a building material's ability to reduce sound. A higher STC rating translates into more reduction in sound. Laboratory testing is used to measure the resistance of partitions such as walls, windows, or entry doors to the passage of sound.
The material with the lowest resistance to the passage of sound limits a partition's STC value. Poor construction practices can also nullify a partition's sound reduction properties. Cracks due to improperly fitted doors or windows can be a prime source of sound leakage.
Western Reflections conducted third party IAS-accredited lab testing on a range of doorglass configurations. All of the doorglass samples were 22" x 64" except the sliding patio door blind which was 33" x 74". These sound transmission loss tests were conducted in accordance with ASTM E 90. The Sound Transmission Class (STC) rating was calculated in accordance with ASTM E 413. Test results and benchmark values are presented below.
| Family | Configuration | STC | Comment |
|---|---|---|---|
| Decorative | Decorative glass with caming |
31 | Third party tested (486 K) Adobe PDF |
| 1-lights, grilles between glass, external grilles |
1/2" IG, clear glass 1-light, 1/4" air space, Intercept® spacer |
26 | Third party tested (486 K) Adobe PDF |
| 1/2" IG, clear glass, external grille, 1/4" air space, Intercept® spacer |
26 | Third party tested (486 K) Adobe PDF |
|
| 1" IG, clear glass 1-light, 3/4" air space, Intercept® spacer |
28 | Third party tested (486 K) Adobe PDF |
|
| 1" IG, clear glass, grilles between glass, 3/4" air space, Intercept® spacer |
30 | Third party tested (486 K) Adobe PDF |
|
| Simulated divided lite, grilles between glass with external grilles, 3/4" air space, Intercept® spacer |
30 | Third party tested (486 K) Adobe PDF |
|
| Severe weather |
Severe weather, dual-glazed blind, with Intercept® spacer, slats raised |
39 | Third party tested (486 K) Adobe PDF |
| Severe weather, 1-light door glass |
35 | Third party tested (394 K) Adobe PDF |
|
| Severe weather, decorative door glass |
37 | Third party tested (486 K) Adobe PDF |
|
| Blinds | Triple-glazed, grilles between glass blind, with Intercept® spacer, slats lowered and closed |
34 | Third party tested (394 K) Adobe PDF |
| Dual-glazed blind, with Intercept® spacer, slats lowered and closed |
32 | Third party tested (394 K) Adobe PDF |
|
| Sliding patio door blind, Intercept® spacer, slats lowered and closed |
28 | Third party tested (394 K) Adobe PDF |
|
| Door and window reference information |
3' x 7' steel door, 1-3/4" thick with polyurethane core |
26 | From HUD Noise Notebook* |
| 30" x 48" aluminum clad casement window, 1" IG with 1/8" panels |
29 | From HUD Noise Notebook* |
Decorative glass with caming
STC: 31
Comment:Third party tested (486 K) Adobe PDF
1/2" IG, clear glass 1-light, 1/4" air space, Intercept® spacer
STC: 26
Comment: Third party tested (486 K) Adobe PDF
1/2" IG, clear glass, external grille, 1/4" air space, Intercept® spacer
STC: 26
Comment: Third party tested (486 K) Adobe PDF
1" IG, clear glass 1-light, 3/4" air space, Intercept® spacer
STC: 28
Comment: Third party tested (486 K) Adobe PDF
1" IG, clear glass, grilles between glass, 3/4" air space, Intercept® spacer
STC: 30
Comment: Third party tested (486 K) Adobe PDF
Simulated divided lite, grilles between glass with external grilles, 3/4" air space, Intercept® spacer
STC: 30
Comment: Third party tested (486 K) Adobe PDF
Severe weather, dual-glazed blind, with Intercept® spacer, slats raised
STC: 39
Comment:Third party tested (486 K) Adobe PDF
Severe weather, 1-light door glass
STC: 35
Comment: Third party tested (394 K) Adobe PDF
Severe weather, decorative door glass
STC: 37
Comment: Third party tested (486 K) Adobe PDF
Triple-glazed, grilles between glass blind, with Intercept® spacer, slats lowered and closed
STC: 34
Comment: Third party tested (394 K) Adobe PDF
Dual-glazed blind, with Intercept® spacer, slats lowered and closed
STC: 32
Comment: Third party tested (394 K) Adobe PDF
Sliding patio door blind, Intercept® spacer, slats lowered and closed
STC: 28
Comment: Third party tested (394 K) Adobe PDF
3' x 7' steel door, 1-3/4" thick with polyurethane core
STC: 26
Comment: From HUD Noise Notebook*
30" x 48" aluminum clad casement window, 1" IG with 1/8" panels
STC: 29
Comment: From HUD Noise Notebook*
