Dowel Lam Timber
Mass timber with integrated acoustic performance.
Acoustic DLT The Next Generation of DLT Products
DowelLam’s Acoustic DLT builds on the unique properties and design flexibility of DLT to deliver a structural mass timber panel with built-in sound absorption capabilities.
Our Acoustic DLT features a shop-milled void with fibrous acoustic insulation between each structural lamination. The result is a beautiful, economical exposed wood ceiling with a noise reduction co-efficient (NRC) of up to 0.70.
Specifications Acoustic Performance
DowelLam’s Acoustic DLT panels meet an NRC of 0.70, tested in accordance with ASTM C423-08. Alternative acoustic insulation options are available upon request, including:
1. Red-list compliant (formaldehyde-free) insulation
2. Alternative scrim colors
3. Alternative lamination widths (3x or 4x)
Applications Where to Use ADLT
Schools
Libraries
Institutional Buildings
Offices
Specifications Acoustic DLT Panel Specifications
ADLT panels are available in the following depths:
ADLT-4 / ADLT-6 / ADLT-8/ ADLT-10
Depth
4-12” in nominal laminations
Species
Spruce Pine Fir (SPF), Douglas Fir (D.Fir), Hemlock-Fir (Hem-Fir), European Spruce *others available upon request*
Panel Size
Length: up to 60.5’ Width up to 12’ in any increments
Lamination Width
2”, 3”, 4”
Acoustic DLT Projects Featured Projects
Princeton University Environmental Studies and The School of Engineering and Applied Science
Framing through the ES and SEAS buildings consists primarily of Acoustic Dowel-Laminated Timber (DLT) floor and roof panels supported by Glulam post and beam framing. The Princeton Commons features two-way hybrid timber-steel diagrids forming the third floor and roof structure, supporting Acoustic DLT.
Kellogg Middle School
First Acoustic Dowel Laminated Timber Project in the United States. This new middle school in Shoreline, Washington uses DLT roof panels over the entry/commons area as well as the library. The panels not only address the structural requirements, but offer a beautiful finish ceiling with acoustic attenuation (NRC of 0.70).
Würth Electronics
Würth Elektronik’s new North American headquarters features dowel-laminated timber (DLT) panels over steel framing and is designed for LEED Silver certification. Serving as a central hub for Würth’s North and South American operations, it aims to support future growth, doubling staff capacity to 225.
New American Royal Complex
The new American Royal Headquarters Complex spans three arenas, a state-of-the-art learning and engagement center and 100 acres of space for livestock shows. The structure incorporates DLT roof panels over steel framing in several of the Complex’s roofs, featuring an acoustic profile for interior spaces and a standard profile for exterior spaces.
