Airborne Sound Transmission Loss and Sound Insulation Testing
Ensuring Superior Noise Control & Acoustic Performance
At METS Lab, we specialize in Sound Transmission Loss & Sound Insulation Testing, helping architects, engineers, and developers achieve optimal noise reduction and privacy in residential, commercial, and industrial spaces. Our testing ensures compliance with international standards such as ASTM, ISO, and EN, providing reliable data for regulatory approvals and acoustic optimization.
Why Sound Insulation Testing Matters?
Effective sound insulation is essential for maintaining privacy, reducing noise pollution, and enhancing occupant comfort. Whether designing office spaces, residential buildings, or specialized facilities like hospitals and studios, proper sound insulation testing ensures compliance with regulatory requirements and industry best practices.
Our Testing Services
Airborne Sound Insulation &Transmission Loss Testing
- Standards: ISO 140-3, ASTM E90, EN ISO 16283-1
- Purpose: Measures the ability of walls, floors, and ceilings to block airborne noise transmission.
- Applications: Residential buildings, offices, hotels, healthcare facilities.
Facade Sound Insulation Testing
- Standards: ISO 140-5, ASTM E966, EN ISO 16283-3
- Purpose: Assesses the ability of external walls and windows to reduce outdoor noise intrusion.
- Applications: Urban residential areas, hotels, office buildings near highways or airports.
Sound Transmission Class (STC) Ratings
- Standards: ASTM E413
- Purpose: Provides standardized ratings for sound insulation performance of building elements.
- Applications: Product certification, compliance verification, acoustic design optimization.
Significance of Airborne Sound Transmission Loss
Airborne sound transmission loss measures how effectively a building element blocks sound traveling through the air. This is particularly important in:
- Residential Buildings: Ensuring privacy between rooms or apartments.
- Commercial Spaces: Reducing noise distractions in offices, conference rooms, and shared workspaces.
- Healthcare Facilities: Minimizing noise to create a quiet environment conducive to patient recovery.
- Educational Institutions: Enhancing speech intelligibility in classrooms and lecture halls.
- Performance Venues: Preventing sound leakage between performance spaces and adjacent areas.
Key Metrics Evaluated
- Sound Transmission Loss (STL): The reduction in sound energy as it passes through the test specimen.
- Frequency Range: Measurements are typically taken across a standard range of frequencies (e.g., 50 Hz to 5000 Hz).
- STC Rating: A single-number rating that represents the overall sound insulation performance of the specimen.
Applications of ASTM E90 Testing
- Wall Assemblies: Evaluating the sound insulation performance of drywall, masonry, and other wall systems.
- Floor-Ceiling Systems: Testing the ability of floors and ceilings to block airborne sound.
- Doors and Windows: Assessing the acoustic performance of entryways and glazing systems.
- Curtain Walls and Facades: Measuring the sound insulation properties of exterior building elements.
- Specialized Partitions: Testing operable partitions and movable walls used in conference centers and event spaces.
Partner with Mets Lab
Ensure your building partitions and elements meet the highest standards for sound insulation with our ASTM E90 testing services. Contact us today to schedule testing or learn more about how we can support your acoustic design goals.