Featured · spec-drivenHigh Performance Subfloor
Plycem High Performance Subfloor is a UL R15140 classified fiber-cement structural panel for use in 1-hour and 2-hour fire-rated floor/ceiling assemblies. Manufactured in Costa Rica, El Salvador, and Honduras under ISO 9001/14001/45001 quality systems. Suitable for multifamily wood-frame over podium, commercial steel-joist floors, hotels, and modular construction.
UL R15140 fire-rated assemblies
1-hour and 2-hour designs: H502, H504, H511, U449, U487
Full US compliance package
ASTM C1186 · ASTM E-136 non-combustible · IAPMO ER-360 · IBC 2021 Type I/II · CBC Chapter 7A
7 panel variants
20mm / 22mm / 25mm / 30mm thickness · straight or tongue-and-groove edge







