NEW Sto Fireblocking Solution to Meet 2022 New York City Building Code
Sto Products
![Sto AirSeal® – Medium Build](https://www.stocorp.com/wp-content/uploads/2023/01/IMG_StoGuard_Sto-AirSeal_2_Shadow_EN.png)
Sto AirSeal® – Medium Build
Sto AirSeal® – Medium Build is a water-based, vapor permeable, fluid-applied air and water-resistive barrier membrane. It can be installed according to one of three specifications depending on project requirements.
The Substrate-Driven specification requires 20-mils WFT of Sto AirSeal (potentially more on CMU).
The Medium-Build and High-Build specifications require 40-mils and 65-mils wet film thickness respectively. Project teams can select the specification most suitable for their project.