Glass Building Acoustical Trim Cap Systems

Sound Solution Systems

Sound Engineering

Mull-it-over mullion trim cap system is the sound-deadening drywall partition that goes all the way to the face of the glass.


Mull-It-Over is compatible with your glass building structures. Choose from multiple styles including hourly fire-rated designs that fit your space.


Tested and proven in the sound chambers of Architectural Testing in York, PA. Whether the installation is in a patient room, a boardroom, or a bedroom, noise transfer is now resolved.

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Mull-It-Over | Learning Center

How it works

People In Glass Buildings Should Not Hear Their Neighbors.

Extensive Overview

Mull-It-Over sound barrier mullion trim caps solve the transition detail between interior partition walls & exterior glass facades.

Easy To Install

Mull-It-Over should be specified in all glass buildings. 

Promoting the Best

Know What is Possible.