When designing a tiny home or a multi-residence space, proper wall assembly is crucial for ensuring optimal sound reduction, insulation, and fire safety. This featured wall assembly, recently used by Simon Wong of Kitchener Tiny Homes provides an exceptional solution to multi-residence construction, making it ideal for multi-family dwellings, commercial applications, in-law suites, and more.
Wall Assembly Components:
This high-performance wall assembly offers superior noise reduction by combining the elements of insulation, mass, and decoupling. Below, we outline the step-by-step installation process and highlight the benefits of each component.
This high-performance wall assembly offers superior noise reduction by combining the elements of insulation, mass, and decoupling. Below, we outline the step-by-step installation process and highlight the benefits of each component.
Install Insulation
- Choose an appropriate insulation type, such as mineral wool or fiberglass batts, to reduce resonance and capture sound frequencies. (For this specific project we used R14 x 15 Rockwool ComfortBatt)
- Unlike foam-based insulation, these materials provide excellent thermal performance and fire resistance.
Install SONOpan Soundproofing Panels
- Secure SONOpan over the joists and mark their locations for reference.
- SONOpan’s Noise STOP Technology absorbs a wide range of sound frequencies, including low bass, preventing sound transfer between rooms.
Install Resilient Channels or Alternative Decoupling Methods
- If decoupling is needed, attach resilient channels perpendicular to the joists, ensuring proper spacing and direction.
- Other decoupling methods, such as isolation clips with a hat channel or staggered stud framing, may also be considered based on project requirements.
Install the Drywall
- Secure the first layer of drywall to the framing or resilient channels with correctly measured screws.
- The added mass increases the effectiveness of soundproofing and enhances fire resistance.
OPTIONAL: Install the second layer of Drywall
- Attach the second layer of drywall to the resilient channels, ensuring screws are properly placed.
- Two layers of 5/8” drywall create an extra-thick sound barrier, making this assembly one of the best for noise reduction and fire safety.
Why This is a Superior Multi-Residence Wall Assembly?
Superior Sound Reduction
This wall assembly is designed to effectively minimize sound transmission by combining insulation, decoupling (if used), and mass. Insulation absorbs airborne noise, SONOpan panels capture a broad range of frequencies, and the decoupling method prevents sound vibrations from traveling through the structure. The double-layer drywall further strengthens the soundproofing capabilities.
Enhanced Fire Safety
Each component of this assembly contributes to fire resistance. Insulation options like mineral wool are non-combustible, and the double layers of 5/8” drywall provide additional fire protection. These materials help slow the spread of flames, giving residents more time to evacuate in case of an emergency.
Effective Thermal Insulation
Beyond soundproofing, insulation in this wall assembly significantly enhances thermal performance. This helps regulate indoor temperatures, improving energy efficiency and reducing heating and cooling costs.
FEATURED DETAIL
Fire-Rated Recessed Lighting Protection
Lighting fixtures, such as recessed LED pot lights, present a unique challenge in maintaining a continuous fire separation and sound isolation. Any penetration in the ceiling can create an opening for fire and sound transmission. To mitigate this, two solutions are recommended:
Drywall Box Enclosure
- Construct a drywall box around the light fixture that matches the ceiling’s fire rating.
- This maintains the necessary fire separation and prevents sound leaks.
Fire-Rated Pot Lights
- Use fire-rated pot lights designed to contain flames and reduce sound transmission.
- These fixtures provide an easy, code-compliant solution for maintaining fire safety.
By incorporating these measures, you can ensure that recessed lighting does not compromise the integrity of your soundproof and fire-resistant ceiling.
Conclusion
This expertly designed wall assembly provides unmatched performance in sound reduction, fire safety, and thermal insulation. Whether for a tiny home, multi-family residence, or commercial application, this assembly ensures a quieter, safer, and more energy-efficient living space.
To explore more wall assemblies and view sound ratings for various configurations, visit SONOpan’s website. Stay tuned for our upcoming post featuring photos of this wall assembly in different stages of construction, including a closer look at the recessed lighting detail. If you’re looking to build or renovate with superior soundproofing and fire protection in mind, this is the ultimate wall system for your project!
