Acoustical Test Results for LAMTEC products

From: Subject: Acoustical Test Results for LAMTEC products Date: Mon, 16 Apr 2007 15:28:32 -0400 MIME-Version: 1.0 Content-Type: multipart/related; type="text/html"; boundary="----=_NextPart_000_0000_01C7803B.E40F4420" X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3028 This is a multi-part message in MIME format. ------=_NextPart_000_0000_01C7803B.E40F4420 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Content-Location: http://www.lamtec.com/acoustical.htm Acoustical Test Results for LAMTEC products

LAMTEC	=AE
Corporation

Home| About Us |Directions = |Contact = |FAQ

Vapor=20 Retarder | Product Selection=20 Guide | Product = Specs =20 | Architectural=20 Specs

Technical = Bulletin=20 #6

Acoustical Test = Results

Metal Building = Facings=20

Lamtec has=20 conducted acoustical tests of its metal building facings = in=20 combination with R-10 and R-19 fiberglass insulation. = This=20 acoustical information can be helpful in selecting the = most=20 appropriate facing.

The test = results are=20 presented in table format: (Please click on a page listed = below to=20 view the results)

Page=20 1(WMP-VR, WMP-VR BLACK, WMP-VR (PERF), & = WMP-VR-R=20 PLUS)

Page=20 2(WMP-10, WMP-30, WMP-50, & = WMP-F)

Page=20 3(WMP-F=20 (PERF), VSF HD, AND R-3035 HD)

Page=20 4(GYMGUARD,=20 & ARENASHIELD)

Please = refer to the Lamtec Product = Selection=20 Guide for a summary of additional key performance=20 criteria.

Background

When = evaluating the=20 acoustical requirements inside the building, it is = important to=20 examine and understand the makeup of the unwanted = sound. =20 Sound absorbing materials tend to be frequency dependent, = i.e.,=20 one material may perform extremely well at low frequencies = and not=20 as well at high frequencies.

Acoustical = testing has=20 been performed according to ASTM C423, "Test Method for = Sound=20 Absorption and Sound Absorption Coefficients by the = Reverberation=20 Room Method". The sound absorption coefficients are = provided=20 for frequencies of 63 Hz to 5000Hz. The NRC is = calculated by=20 averaging the sound absorption coefficients at 250, 500, = 1000 and=20 2000 Hz. =20

Copyright =A9=20 2007 [LAMTEC]

Outlook Web=20 = Access

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