Continuous Insulation Sheathing

HB ONE | Backer CI™

The BOARD that revolutionizes exterior wall construction serving as a water-resistant exterior backer board and EIFS alternative, a 5-in-1 system combining a direct to stud sheathing (non-shear), the Secondary WRB, Insulation, Lath, and Scratch Coat into one high-performance board.

HB One Backer CI reduces steps, cuts costs, shortens schedules, and delivers Continuous Insulation for a faster, cleaner, and more predictable Direct to Board stucco finish, replacing multiple layers with one board.

CI Sheathing Products

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HydroBlok

HydroBlok

HB ONE | Backer CI™

HydroBlok Advantage:

A water-resistive barrier
Energy efficient with built-in R-value to meet energy codes without additional insulation
Compatible as it works with all major finish systems (STO, Dryvit, Masterwall)
Fast installation – reduce labor by 50% with fewer steps and material
Lightweight – 75% lighter than cement board for easier handling and installation
Code Compliant – ICC-ES evaluated, compliant with 2021/2024 IRC and IBC building codes

Additional Information

HB ONE leverages DuPont XPS Foam to deliver higher R-Value, improved durability, and the confidence of a proven material with decades of performance. The board was specifically designed to save contractors time, reduce on-site labor, and simplify the stucco installation process, making every job easier and more predictable.

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