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                                                                        SOUND SEAL ACOUSTICAL DUCT & PIPE LAGGING

SPECIFICATION

PIPE AND DUCT LAGGING – B-10 LAG/QFA-3                                  Sound Seal’s pipe and duct lagging features a 1 lb. per sq. ft. or 2
                                                                        lb. per sq. ft. mass loaded vinyl noise barrier with a reinforced-foil
Part 1 – GENERAL                                                        facing on one side. Commonly bonded to a 1 inch or 2 inch thick
                                                                        quilted fiberglass decoupler
1.1 Summary
    A. This section includes the following:                                 • B-10 LAG (1 lb. barrier)
              1. Acoustical lagging as supplied by Sound Seal               • B-10 LAG/QFA-3 (1 lb. barrier with 1" thick
                  to wrap the exterior of ductwork and/or piping
                  where indicated on plans and drawings                        fiberglass decoupler)
                                                                            • B-10 LAG/QFA-9 (1 lb. barrier with 2" thick
Part 2 – PRODUCTS
                                                                               fiberglass decoupler)
2.1 Acoustical pipe and duct lagging, General                               • B-20 LAG (2 lb. barrier)
    A. Acoustical pipe and duct lagging shall be a 1 lb. psf                • B-20 LAG/QFA-3 (2 lb. barrier with 1" thick
         mass loaded vinyl noise barrier with a reinforced-foil
         facing on one side, bonded to a 1" thick non-woven                    fiberglass decoupler)
         porous scrim faced quilted fiberglass decoupler on                  • B-20 LAG/QFA-9 (2 lb. barrier with 2" thick
         the opposite side
              1. Products                                                      fiberglass decoupler)
                    I. Model # B-10 LAG/QFA-3
                       Sound Seal                                       ACOUSTICAL DATA
                       Agawam, MA USA
                       www.pipeandduct.com                              B-10 LAG SERIES
                       Ph: 800-569-1294
                            413-789-1770                                Featuring a 1 lb. psf reinforced-foil faced noise barrier
                       Fax: 413-789-2248
              2. Quilted fiberglass decoupler:                              PRODUCT      SOUND TRANSMISSION LOSS (dB) FREQUENCY (Hz)  STC
                    I. Shall be nominally 1" thick
                    II. Shall have a nominal density of 2.0-lb/cu. ft.  B-10 LAG         125 250 500 1000 2000 4000                  27
                    III. Shall be quilted with a non-woven porous       B-10 LAG/QFA-3    15 18 22 27 32 37                          29
                       scrim facing                                     B-10 LAG/QFA-9    18 18 23 30 39 46                          30
              3. Standard Width: 54 inches                                                19 20 23 33 44 53
              4. Length: As indicated, up to 30 feet long
              5. Flammability                                           B-20 LAG SERIES
                    I. Class A flammability rated
                    II. Flame Spread Index less than 15                 Featuring a 2 lb. psf reinforced-foil faced noise barrier
                    III. Smoke Density less than 20
              6. Sound Transmission class: STC 29                          PRODUCT      SOUND TRANSMISSION LOSS (dB) FREQUENCY (Hz)  STC

                                                                        B-20 LAG         125 250 500 1000 2000 4000                  31
                                                                        B-20 LAG/QFA-3    16 22 26 32 35 40                          32
                                                                        B-20 LAG/QFA-9    20 23 28 37 48 56                          34
                                                                                          21 24 29 41 54 68

2.2 Acoustical Performance:                                             For 3-part specifications on all of our LAG products visit:
Sound Transmission Loss: Per ASTM E 90                                  www.pipeandduct.com
Octave Band Center Frequency (Hz)
125 250 500 1000 2000                      4000  STC
18 18 23 30 39                              46   29

2.3 Accessories for securely mounting the
Acoustical pipe and duct lagging

              1. Foil lag tape
              2. Stick pins
              3. Welding pins
              4. Banding
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