Sound Absorbing Acoustic Wall Panel


Brucha’s WP-A panel (Wall Panel – Acoustic) is the sound absorbing version of our WP-F (Wall Panel – Fire Rated) mineral wool insulated panel. This panel is used for exterior walls*, interior walls/liner panels and ceilings and helps reduce ambient noise levels by absorbing rather than reflecting sound. Industrial facilities with loud equipment such as power generation or manufacturing plants are ideal applications for this product. The mineral wool core not only provides excellent sound deadening but is also non-combustible. The panels come standard with a protective film at panel sidejoints, protecting the core from unwanted moisture.

Available in six different profiles and 10 different thicknesses, WP-A provides the solution to a variety of design challenges.

*not recommended for high humidity interior environments

Connect with an expert
* Contact BRUCHA directly for pricing and inquiries

Composition & Attributes

Coil-coated galvanized steel-faced panels with a perforated, sound-absorbing surface


  • Width: 43-5/16” (1100 mm)
  • Lengths: 8 – 38’
  • Standard 1 mil (25 µm) polyester
    • Optional: 1 mil (25 µm) PVDF (polyvinylidene), 2 mil (50 µm) PUR-PA (polyurethane/polyamide)
  • G-90 steel, 24 gauge (.6 mm) standard, 22 gauge (.7 mm) available upon request
  • Standard profiles: planked (#1), striated (#4), max striated (#5), mini striated (#6)
    • Optional profiles: flat (#2), v-rib (#3)


  • Standard 1 mil (25 µm) polyester
  • G-90 steel, 24 gauge (.6 mm) standard, 22 gauge (.7 mm) available upon request
    • Standard profile: flat (#2)
  • Perforation pattern: 32.5% open, ≈ 1/8” (3 mm) hole size, ≈ 3/16” (5 mm) offset    

insulation core

  • Mineral wool, fibers perpendicular to panel faces
  • R value ≈3.6/inch per ASTM C518 @ 75°F
  • CFC and HCFC free
  • Density ≈ standard 7.5 lbs./ft³ (120 kg/m³), optional 8.74 /ft³ (140 kg/m³)
  • Available thicknesses (nominal): 2-3/8” (60 mm), 3” (80 mm), 4” (100 mm), 4-3/4” (120 mm), 5-1/2” (140 mm), 6” (150 mm), 6-1/4” (160 mm), 7” (180 mm), 8” (200 mm), 9-1/2” (240 mm)

panel connection

  • Double tongue and groove sidejoint, through fastened
  • Factory installed moisture barrier at sidejoints

vapor diffiusion

  • Due to the perforated panel surface, the use as an exterior wall for wet rooms and heated buildings is only conditionally possible, or not recommended.

testing & certifications

  • Compliant with a wide range of US and International codes and standards. Contact your Brucha representative for an updated list.

At a Glance


Manufacturing Tolerance

In line with EN 14509

Construction Width

43 5/16 in (1100 mm)

Sound Insulation

approx. 33-35 dB (frequency dependent)

Manufactured Lengths

max 40 ft. (45 ft. by special arrangement)

Temperature Stability

194° F / 90° C

Fire Rating

FM 4880 Class 1 Fire Rating of Insulated Wall or Wall and Roof/Ceiling Panels, Interior Finish Materials or Coatings, and Exterior Wall Systems


2 3/8 in (60 mm) – 9 7/16 in (240 mm)

Samples + Support


Want to see our panels up close? We have samples! Contact us and we will get one shipped to you!


Need help? From theoretical questions about our panels to practical questions on how to install panels correctly, BRUCHA has you covered.

Contact Us

Let's Chat

Jeff Gerhardt4 copy

Jeff Gerhardt

VP of Sales
Pictur Jay Hughes

Jay Hughes

District Sales Manager-Southeast
District Sales Manager-Southwest

We are here for you. Whether you have a question about our panels, pricing, need a sample, or anything else, our team is ready to answer all your questions.