Schools/Univ.
Commercial/Office
Gov./Military
Sound-Tech Xpress Systems The Sound Choice for Acoustical Solutions
and Much More
What is STC? The Noise Problem Noise can have significant affects on people’s daily functions. Facilities need to shield common workspaces and office employees from the distractions of resident noise emanating from HVAC units and other heavy equipment rooms. Schools have to significantly reduce the sounds coming from band rooms and hallways. Virtually all types of buildings need rooms equipped for private conversation. Plus, the need for absolute confidentiality is increasing because of expanding national security operations.
Noise Solutions The solution to unwanted noise is reducing level of sound produced. There are several methods of reducing noise levels but they mainly rely on two basic principles: Sound Absorption - The process of removing sound energy from within a room. This is accomplished by using materials to soak up sound. Sound Transmission - The movement of sound through a medium (wall or doorway). Both sound absorption and sound insulation (the opposite of transmission) are used in controlling the broadcast of noise within and through buildings.
Evaluating Noise The solution to a noise problem begins with evaluating the noise impact. Sound can be described as vibrations in the air moving in waves. The rate of sound vibrations measured in cycles per second is called frequency (Hertz). Sound pressure levels are measured in decibels (dB). (See chart below)
Examples of Sound Pressure Levels (Loudness):
Sound Reduction Ratings Transmission Loss (TL) - A door’s ability to reduce noise is called its transmission loss (TL) effectiveness. TL is a value given in decibels, which is determined by measuring sound pressure levels at a certain frequency in the source and receiving rooms. The adjusted difference between the two levels is the TL of the door. The higher the TL, the better the result. Sound Transmission Class (STC) - TL measurements for a door are taken across a range of frequencies, which makes it difficult to compare the effectiveness of different doors. Sound transmission class (STC) ratings solve that problem by giving a single value to acoustical performance for a door. STC is determined by a weighted average of TL values taken over16 frequencies, which are fitted to a curve in a method defined by the ASTM E413 Classification Standard for Rating Sound Insulation. The higher the STC value, the better the rating and the better the performance.
Sound Level dB 0 20 30 40 50 60 70 80 90 105 120 130
Threshold of hearing Very rural environment Quiet home Quiet Office Background conversation Radio/Television in home Highway noise Background factory noise Noisy factory Elevated train Bass drum at 3' Jet aircraft at 100'
Inaudible Extremely quiet Faint Distant sounds audible Moderate Moderate Moderately loud Loud Very loud Deafening Physical pain Physical pain
100 dB Source Room
46 dB
Receiving Room
Sound-Tech Xpress STC 54 System
Sound Solutions A Sound Choice
Sound-Tech Xpress Advantages
Using the latest patent pending technology in light weight sound absorbing techniques, Ceco Door has developed acoustical assemblies to be the noise solution for any facility.
Ceco Door Sound-Tech Xpress Door Systems have many advantages over other sound door products in the market.
High STC ratings are typically needed to create sound resistant rooms for the government/military, airports, school band rooms and to isolate performance halls from exterior noise. Relatively lower STC ratings will usually suffice for less demanding applications, such as solving a noise problem in a hotel or office building. Sound-tech Xpress Systems cover the low to high STC range allowing them to be the solution for almost any application.
Sound Transmission Class Table
• Wide range of operable STC ratings from 32 to 54 singles and pairs including factory glazed units (STC 32 - 48). • 4 to 6 week standard leadtimes with 5 -10 day quick ship availability as units or frames first (excluding factory glazing). • Competitive pricing including door, installed glass (when required), frame and all sealing hardware. • Thresholds are ADA compliant. • STC 46 - 54 door assemblies are 30% lighter than most sound doors in the market allowing standard weight hinges to be used (7.0-8.8 lbs per sq. ft.). . • All door cores are lead and asbestos free
Door Type
STC
Performance Description
Typical Hollow Metal Door
20-25
Minimal
Speech clearly audible
• All doors are 1 3/4” thick instead of 2 1/4” or larger like other sound doors in the market
25-30
Average
Normal speech understood
• Door assemblies can be pre-wired with Electrolynx snaptogether connectors make adding or upgrading electrified openings easy.
Ceco Door Sound-Tech Xpress Systems
30-35
Fair
Loud speech understood fairly well
35-40
Good
Loud speech heard but hardly intelligible
40-50
Very Good
Loud speech just detectable
Product Features
50-54
Excellent
Loud speech barely audible
Door Configurations (see back cover for STC matrix)
Example of STX 50 System
• Most door assemblies are UL or WH fire rated. • Sound-Tech Xpress Doors Systems can help achieve LEED requirements for sound and recycled content.
• Single flush doors available from STC 32 to STC 54. • Factory glazed doors available from STC 32 to STC 48. • Flush pairs available up to STC 49, glazed up to STC 44 • All doors tested in fully operable conditions. • Seals, thresholds and door bottoms (as required) are included. • UL or WH fire labeling up to 3 hours (varies per STC rating).
Frame Configurations (Frames must be filled with flank proof materical over STC 39)
• 16 or 14 gage cold rolled or galvaneal steel. • 4-1/8” through 14” depths. • Welded Corners
Hardware Preps Locks: • 161 cylindrical locks (backset min. varies per STC rating). • 86 edge mortise locks with escutcheon or sectional trims. • Military/Government spin dial locks (STC 50 max). • Rim panic and Surface mounted vertical rod exit devices. • Surface and flush bolts on inactive leaves (STC 32- 49 pairs). Hinges: • Standard 4.5 x .134. • Heavy weight and 5” optional. • Cam-lift hinges optional.
Sound-Tech Xpress Systems Product Offering STC Rating
Max. Lite Undercut Visible Area
Thickness
Max. Fire Rating
Lock Type
Available Sizes
Single Doors
54 53 52 51 50 - 49 48 47 46 45 44 43 42 41 40 39 - 32 32 STC Rating
N/A 3/8” N/A 3/8” N/A 3/8” N/A 3/8” N/A 3/8” 100 sq. in. 3/8” 100 sq. in. 3/8” 100 sq. in. 3/8” 288 sq. in. 3/8” 288 sq. in. 3/8” 288 sq. in. 3/8” 288 sq. in. 3/8” 720 sq. in. 3/8” 720 sq. in. 3/8” 720 sq. in. 3/8” 3/8” Embossed Undercut Door Design
1 3/4” 1 3/4” 1 3/4” 1 3/4” 1 3/4” 1 3/4” 1 3/4” 1 3/4” 1 3/4” 1 3/4” 1 3/4” 1 3/4” 1 3/4” 1 3/4” 1 3/4” 1 3/4” Thickness
N/A N/A 3 hr 3 hr 3 hr 1 1/2 -3 hr 1 1/2 -3 hr 1 1/2 -3 hr 1 1/2 -3 hr 1 1/2 -3 hr 1 1/2 -3 hr 1 1/2 -3 hr 1 1/2 -3 hr 1 1/2 -3 hr 1 1/2 -3 hr 3 hr Max. Fire Rating
Cylindrical Cyl/Mort Cyl/Mort Cyl/Mort/Exit Cyl/Mort/Exit/Military Cyl/Mort*/Exit*/Military* Cyl/Mort/Exit*/Military* Cyl/Mort/Exit/Military* Cylindrical Cyl/Mort Cyl/Mort/Rim Cyl/Mort/Rim Cylindrical Cyl/Mort Cyl/Mort/Rim Cyl/Mort Lock Type
2’ 0” x 6’ 8” - 4’ 0” x 8’ 0” 2’ 0” x 6’ 8” - 4’ 0” x 8’ 0” 2’ 0” x 6’ 8” - 4’ 0” x 8’ 0” 2’ 0” x 6’ 8” - 4’ 0” x 8’ 0” 2’ 0” x 6’ 8” - 4’ 0” x 8’ 0” 2’ 0” x 6’ 8” - 4’ 0” x 8’ 0” 2’ 0” x 6’ 8” - 4’ 0” x 8’ 0” 2’ 0” x 6’ 8” - 4’ 0” x 8’ 0” 2’ 0” x 6’ 8” - 4’ 0” x 8’ 0” 2’ 0” x 6’ 8” - 4’ 0” x 8’ 0” 2’ 0” x 6’ 8” - 4’ 0” x 8’ 0” 2’ 0” x 6’ 8” - 4’ 0” x 8’ 0” 2’ 0” x 6’ 8” - 4’ 0” x 8’ 0” 2’ 0” x 6’ 8” - 4’ 0” x 8’ 0” 2’ 0” x 6’ 8” - 4’ 0” x 8’ 0” 2’ 0” x 6’ 8” - 4’ 0” x 8’ 0” Available Sizes
Decorative Single Doors
47 46 46 45 45-40 44-40 STC Rating
6 Panel 3/8” 6 Panel 3/8” 2 Panel 3/8” 2 Panel 3/8” 6 Panel 3/8” 2 Panel 3/8” Max. Lite Undercut Visible Area
1 3/4” 1 3/4” 1 3/4” 1 3/4” 1 3/4” 1 3/4” Thickness
3/4 hr 3/4 hr 3/4 hr 3/4 hr 3/4 hr 3/4 hr Max. Fire Rating
Cylindrical Cyl/Mort Cylindrical Cyl/Mort Cyl/Mort/Rim Cyl/Mort/Rim Lock Type
2’ 8” x 6’ 8” - 3’ 0” x 7’ 0” 2’ 8” x 6’ 8” - 3’ 0” x 7’ 0” 2’ 8” x 6’ 8” - 3’ 0” x 8’ 0” 2’ 8” x 6’ 8” - 3’ 0” x 8’ 0” 2’ 8” x 6’ 8” - 3’ 0” x 7’ 0” 2’ 8” x 6’ 8” - 3’ 0” x 8’ 0” Available Sizes
Double Doors
49 48 47 46 45 44 - 40 43 - 39 41 - 37 40 - 36 38 - 34 37 - 33
1 3/4” 1 3/4” 1 3/4” 1 3/4” 1 3/4” 1 3/4” 1 3/4” 1 3/4” 1 3/4” 1 3/4” 1 3/4”
3 hr 3 hr 3 hr 3 hr 1 1/2 hr - 3hr 1 1/2 -3 hr 1 1/2 -3 hr 1 1/2 -3 hr 1 1/2 -3 hr 1 1/2 -3 hr 1 1/2 -3 hr
Cyl/Surf. Vert. Exit Cyl/Mort/Surf. Vert. Exit Cyl/Surf. Vert. Exit Surf. Vert. Exit Cyl/Mort Cyl/Surf. Vert. Exit Cyl/Mort Cyl/Surf. Vert. Exit Cyl/Mort Cyl/Surf. Vert. Exit Cyl/Mort
4’ 0” x 6’ 8” - 8’ 0” x 8’ 0” 4’ 0” x 6’ 8” - 8’ 0” x 8’ 0” 4’ 0” x 6’ 8” - 8’ 0” x 8’ 0” 4’ 0” x 6’ 8” - 8’ 0” x 8’ 0” 4’ 0” x 6’ 8” - 8’ 0” x 8’ 0” 4’ 0” x 6’ 8” - 8’ 0” x 8’ 0” 4’ 0” x 6’ 8” - 8’ 0” x 8’ 0” 4’ 0” x 6’ 8” - 8’ 0” x 8’ 0” 4’ 0” x 6’ 8” - 8’ 0” x 8’ 0” 4’ 0” x 6’ 8” - 8’ 0” x 8’ 0” 4’ 0” x 6’ 8” - 8’ 0” x 8’ 0”
N/A N/A N/A N/A N/A 100 100 288 288 720 720
3/8” 3/8” 3/8” 3/8” 3/8” 3/8” 3/8” 3/8” 3/8” 3/8” 3/8”
*Hardware available on flush door only. All doors above include closer reinforcing.
Specifications
Testing & Certification
All Sound-Tech Xpress Doors Systems are in compliance with HMMA 865-03 and SDI 128 specifications.
STX Door Systems are tested in accordance with: ASTM E90, Standard test method for laboratory measurement of airborne sound transmission loss of building partitions. ASTM E 413, Classification for rating sound insulation ASTM E 1332, Standard classification for determination of outdoor indoor transmission class.
9159 Telecom Drive Milan, TN 38358 Tel (888) 232-6366 Fax (888) 232-6462 archhelp@cecodoor.com www.cecodoor.com
ASTM E 2235, Standard test method for determination of decay rates for use in sound insulation test methods.
ASSA ABLOY is the global leader in door opening solutions, dedicated to satisfying end-user needs for security, safety and convenience. Copyright © 2011, ASSA ABLOY Door Group, LLC, an ASSA ABLOY Group company. All rights reserved. 50112/7-2011