Acoustic Pipe & Duct Wrap
Engineered Noise Control
for Mechanical Systems
High-performance barrier and absorber composites, engineered to reduce noise and vibration from pipes, ducts, and HVAC systems.
Quiet the Source of Flow and Pipe Vibration Noise
HVAC ducts, fan housings, valves, pumps, and piping networks can transmit significant airborne and structure-borne noise throughout a building, affecting comfort, privacy, and OSHA compliance.
Memtech designs and supplies a full line of pipe and duct lagging composites engineered to reduce airborne noise radiating from ductwork, piping, and mechanical housings for commercial, institutional, and industrial environments.
Memtech designs and supplies a full line of pipe and duct lagging composites engineered to reduce airborne noise radiating from ductwork, piping, and mechanical housings for commercial, institutional, and industrial environments.
These composite wraps integrate:
- A flexible noise barrier layer (typically loaded vinyl or composite membrane)
- A decoupled acoustic absorber (fiberglass or foam) to reduce vibration and air/fluid flow noise
- A protective facing (reinforced foil, Mylar, or vinyl) for easy cleaning, moisture resistance, and durability
Product Overview
Acoustic Pipe & Duct Wrap
B-10 LAG
The B-10 LAG is a flexible, high-performance noise barrier composite designed to reduce sound transmission from ductwork, piping, and mechanical housings. Constructed from a 1 lb/ft² mass-loaded vinyl barrier with a reinforced foil facing, it offers excellent sound blocking while providing a clean, durable, and moisture-resistant surface.
Performance & Design Highlights:
- Reduces noise radiating from ducts, pipes, and fan housings
- Flexible and easy to install around irregular shapes and fittings
- Reinforced foil facing provides thermal and moisture protection
- Class A fire-rated per ASTM E84 and suitable for indoor or outdoor use when properly sealed
- Temperature Range: -20°F to 180°F
- STC Rating: Approx. 26 STC
- Standard Width: 54" (custom sizes available)
Acoustic Pipe & Duct Wrap
B-10 LAG / QFA-3
The B-10 LAG/QFA-3 combines the 1 lb/ft² barrier of the B-10 with a 1" quilted fiberglass absorber (QFA-3). This dual-layer system delivers both sound blocking and absorption, ideal for controlling airborne noise and improving acoustic performance around vibrating mechanical systems.
It acts as a ‘constrained-layer’ system, and absorbs much of the source vibration, preventing noise from re-radiating from the external barrier
It acts as a ‘constrained-layer’ system, and absorbs much of the source vibration, preventing noise from re-radiating from the external barrier
Performance & Design Highlights:
- Blocks noise while reducing the effects of high vibration
- Provides thermal and acoustic insulation in one composite wrap
- Foil facing enhances cleanability and moisture resistance
- Lightweight, flexible, and easy to install
- Total Composite Weight: Approx. 1.3 lbs/ft²
- STC Rating: Approx. 28 STC
- NRC Rating: 0.65–0.75
Acoustic Pipe & Duct Wrap
B-10 LAG / QFA-9
The B-10 LAG/QFA-9 extends the performance of the QFA-3 configuration by integrating a 2" thick fiberglass absorber, providing higher low-frequency noise attenuation. It’s ideal for large ducts and systems radiating significant broadband turbulent flow noise.
Performance & Design Highlights:
- Enhanced absorption for low- and mid-frequency noise
- Combines barrier and thick insulation for to address difficult noise problems
- Class A fire-rated and cleanable for long-term performance
- Total Composite Weight: Approx. 1.5 lbs/ft²
- STC Rating: Approx. 30 STC
- NRC Rating: 0.85–0.95
Acoustic Pipe & Duct Wrap
B-20 LAG
The B-20 LAG is a double-mass version of the B-10, featuring a 2 lb/ft² mass-loaded vinyl barrier for increased sound attenuation. It’s ideal for environments with high noise levels or where greater acoustic isolation is required around ducts, pipes, or machinery.
Performance & Design Highlights:
- Provides superior sound transmission loss for turbulent or cavitating pipe applications, and high vibration mechanical systems
- Same flexibility and foil facing as B-10, with increased density
- Suitable for both indoor and exterior mechanical applications
- Temperature Range: -20°F to 180°F
- STC Rating: Approx. 31 STC
- Standard Width: 54" (custom sizes available)
Acoustic Pipe & Duct Wrap
B-20 LAG / QFA-3
The B-20 LAG/QFA-3 configuration uses a 2 lb/ft² barrier layer combined with a 1" fiberglass absorber, offering excellent noise reduction for severe applications, such as high-pressure/high-flow piping, exposed valves or accumulators, and high-vibration housings. It delivers both impact resistance and strong transmission loss.
Performance & Design Highlights:
- High STC rating for demanding acoustic isolation
- Compact composite thickness ideal for limited-space applications
- Class A fire-rated and suitable for indoor or covered outdoor use
- Total Composite Weight: Approx. 2.3 lbs/ft²
- STC Rating: Approx. 32 STC
- NRC Rating: 0.70
Acoustic Pipe & Duct Wrap
B-20 LAG / QFA-9
The B-20 LAG/QFA-9 is the most robust configuration in the lagging line, combining a 2 lb/ft² barrier with a 2" quilted fiberglass absorber for maximum acoustic performance. It offers exceptional broadband noise reduction in high-intensity mechanical environments.
Performance & Design Highlights:
- Highest sound transmission loss in the series
- Excellent performance for severely turbulent or cavitating pipe applications, and very high vibration mechanical systems
- Ideal for demanding industrial and outdoor mechanical systems
- Weather-resistant versions available for rooftop use
- Total Composite Weight: Approx. 2.5 lbs/ft²
- STC Rating: Approx. 34 STC
- NRC Rating: 0.90
Acoustic Pipe & Duct Wrap
Performance & Design Highlights
Our engineering team ensures every system is properly specified, installed, and verified for measurable results.
- Dual-Layer Noise Control: Combines barrier and absorber layers to both block and absorb sound energy.
- High Transmission Loss (STC): Provides significant attenuation of mid- to high-frequency flow and mechanical noise.
- Durable & Cleanable Finish: Protective facing resists tearing, oil, moisture, and temperature fluctuations.
- Code-Compliant & Safe: Meets Class A fire rating (ASTM E84); available in foil-faced and Mylar-faced options.
Acoustic Pipe & Duct Wrap
Installation & Integration
Memtech provides complete system design and field coordination, ensuring lagging wraps are installed correctly to deliver acoustic benefits.
Our approach includes:
- Specification and submittal documentation for contractor bidding
- Installation detailing for seams, joints, and penetrations
- Field inspection and testing for post-install verification
- Assessing multiple composite systems (barrier/foam or barrier/fiberglass) ensuring that product performance meets your requirements.
- Design, material supply, and installation oversight from one accountable provider
The Memtech Advantage.
At Memtech, we don’t just supply materials, we deliver results. Our team works alongside your mechanical, architectural, and construction teams to ensure every wrapped lagging system is properly designed, installed, and verified for performance.
Data-Driven Design
Our recommendations are based on vibro-acoustic data acquired at your location (or per your requirements) while not relying solely on product ‘spec sheets’
System Integration Expertise
We ensure lagging integrates seamlessly without restricting access or maintenance.
Long-Term Reliability
Materials are selected for durability under temperature, humidity, and vibration stress.
Material Selection & Procurement
Direct access to a full range of barrier composites, adhesives, and mounting hardware for simplified purchasing.
Local Turnkey Implementation
Clear installation documents and on-site guidance to ensure correct overlap, seam sealing, and mechanical fastening.
Performance Verification
Optional field measurement and post-installation optimization.
Technical Highlights
High-performance barrier and absorber composites for industrial and commercial applications.
Barrier Material
Flexible loaded vinyl (1 lb/ft² or 2 lb/ft² mass options)
Absorber Material
Fiberglass or foam, typically 1″–2″ thick
Surface Finish
Reinforced foil, aluminized Mylar, or vinyl jacket
Fire Rating
Class A per ASTM E84
Temperature Performance
-20°F to 180°F continuous use (varies by product)
Acoustic Performance (STC/NRC)
STC 25–33 (depending on configuration and thickness)
NRC 0.65–0.95 (for absorber layer)
NRC 0.65–0.95 (for absorber layer)
Attachment Methods
Mechanical fasteners, bands, or adhesive tape depending on application
Technical Data &
Product Literature
B-10 LAG
Product Data Sheet
B-10 LAG / QFA-3
Product Data Sheet
B-10 LAG / QFA-9
Product Data Sheet
B-20 LAG
Product Data Sheet
B-20 LAG / QFA-3
Product Data Sheet
B-20 LAG / QFA-9
Product Data Sheet
Support Beyond the Product
Installation assistance available for Michigan and Great Lakes region clients
Engineering consultation to ensure proper material selection
Custom sizing and integration with other Memtech acoustic systems
Replacement panels and parts available for future reconfiguration
Frequently Asked Questions (FAQs)
What noise sources does acoustic duct and pipe wrap address?
It primarily reduces airborne noise radiating from ducts, piping, and equipment casings, particularly from turbulent air or mechanical vibration.
Can this material also provide thermal insulation?
Yes. The absorber layer helps maintain temperature control, offering both acoustic and thermal benefits.
Is it suitable for outdoor use?
Yes. Weatherproof models with reinforced vinyl facings protect against moisture, UV exposure, and temperature changes.
How is it installed?
Wraps are cut to length and secured around the duct or pipe with banding, tape, or mechanical fasteners. Memtech provides field installation details and guidance.
What’s the difference between B-10 and B-20 products?
The main difference is barrier mass. B-10 uses a 1 lb/ft² barrier for standard applications. B-20 doubles that density (2 lb/ft²) for higher noise levels or greater isolation requirements.
How do the QFA-3 and QFA-9 options differ?
They refer to absorber thickness: QFA-3 uses a 1" fiberglass quilted absorber while QFA-9 uses a 2" absorber, providing better low-frequency attenuation. Thicker absorbers are ideal for large ducts, chillers, or broadband mechanical noise.
Do you provide turnkey services?
Yes. We provide full-service delivery, measurement, engineering, design/build, installation, and post-installation validation. You receive a complete, proven solution from one, accountable partner.
What’s the typical lead time for material supply?
Most standard rolls are stocked and available within 2–3 weeks, with custom composites or outdoor-rated versions typically shipping in 4–6 weeks.
Let’s Engineer the Right Solution, Together.
Let's Get Started. Contact Us.
Talk to our experts. We’ll assess your needs and recommend a solution that works for your project.
