Is it acceptable to mix different brands of firestop products on the same job site?

Mixing different brands of firestop products on the same job site is not advisable, particularly when it comes to their application within the same opening. Firestop products are tested and certified as effective only when used as intended, following specific manufacturer guidelines. Each brand may have distinct formulations, fire ratings, and application methods, which can impact the overall performance of the firestop system.

The integrity of a firestop system relies heavily on the uniformity of the materials used. Mixing different brands could compromise the effectiveness of the installation, potentially leading to failures in fire containment. This could endanger lives and property, as the intended fire-resistance rating may not be achieved if products are incompatible.

This principle underscores why regulations and best practices in firestop installations advocate for the use of products from a single manufacturer. Ensuring that all components of the firestop system are compatible helps to maintain the safety and reliability required for effective firestopping.