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If you are working with clients to soundproof pre-existing rooms, rest assured, SONOpan is easiest and most effective way to soundproof finished spaces.

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SONOpan Retrofit Existing Walls

Soundproofing Existing Walls

With retrofit projects, the easiest way to add soundproofing is to install SONOpan over the existing drywall then finish the wall or ceiling with new drywall.

Retrofit Install Guide

SONOpan Ceiling Installation

Soundproofing Existing Ceilings

To soundproof an existing ceiling, the easiest method is to add SONOpan ¾” panels to the ceiling” and a layer of drywall to finish.

Retrofit Install Guide

Should you remove the existing drywall to add insulation?

In most cases, removing the existing drywall is not recommended. Drywall adds mass, which helps with the overall soundproofing assembly. The trade off of removing mass (existing drywall) to add insulation is negligible and in most cases doesn’t warrant the extra work.



Understand and make
the most of your
SONOpan install.

Sound Transmission Class

Learn about Sound Transmission Class and the legal minimums (or lack thereof) when it comes to soundproofing in new construction and multi-residential buildings.

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Impact Isolation Class

Learn about Impact Isolation Class and how its measurement impacts sound transmission in new construction buildings.

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Recommended Reading

View our product information page.

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SONOpan Assemblies

Download our recommended wall assemblies with corresponding STC ratings.

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Hear the Difference

Homeowners and multi-residential unit owners may eventually find their current soundproofing, or lack of soundproofing is disturbing their daily life and decreasing levels of comfort.

See our Homes and Condos page to learn more about the impact of soundproofing in retrofit settings.

Technical Details

* The indicated STC / FSTC performances on drawings can vary according to the
physical properties of the materials in the assembly and their installation.


  • Installation

    SONOpan can be installed in any wall or ceiling.

  • Why use SONOpan?

    SONOpan is an easy to work with, environmentally friendly and cost-effective way to soundproof a space.

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  • How-to-Guides

    Whether you’re into DIY or a professional contractor, SONOpan is easy to install.

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