Air-Shield LM helps keep moisture from penetrating building materials. It is a single-component, liquid-applied, water-based, polymer-modified air/vapor and liquid moisture barrier. The product is formulated to prevent the transmission of air and inhibit vapor and moisture from passing through porous building materials. The manufacturer is W. R. Meadows.

The product may be applied to most common surfaces and integrated into various wall systems. The liquid-applied characteristic of Air-Shield LM makes for a simple application. It is also a sprayable product. It is suited for both new construction and restoration projects.

The manufacturer has published a set of installation instructions that go with the product. The instructions can be used to assist with joint treatment of exterior sheathing panels when using Air-Shield LM or Air-Shield LM (All Season) fluid-applied membranes. The instructions document outlines recommendations from the manufacturer. The document is complete with graphics that help reinforce the guidelines. The document provides a framework for the treatment of joints in exterior sheathing panels as it pertains to Air-Shield LM.

The installation instructions for joint treatment of exterior sheathing panels are available on the manufacturer’s website and can be printed or downloaded. The manufacturer’s Technical Services team can answer questions during product installation. Go here for details.