EXACOR™ Subflooring
EXACOR subfloor panels are fire-resistant[1], high-density, structural magnesium oxide cement panels. When used as a subfloor, EXACOR panels can replace plywood and/or OSB subflooring in certain instances and can remove the need for gypsum underlayment.
01 Products
Subflooring Panel, 3/4" × 4' × 8'
| Panels Per Unit | 22 |
| Fire Resistant | E84 |
| Fire-Resistant Assemblies (UL 263) |
L601, L602 |
Performance Category | Panel Size | Edge Profile | Fire-Resistant Assemblies (UL 263) | Approx. Weight Per Panel | Panels Per Unit |
|---|---|---|---|---|---|
| Nominal 3/4" Thickness (20 mm) | Nominal 4' × 8' (1220 mm × 2440 mm) | Shiplap | L601, L602 | 144 lbs. | 22 |
02 Why It Works
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A Simple Solution for Sound Control
EXACOR subfloor panels have been shown to achieve or exceed code minimums for STC/IIC ratings for dwellings with a single-layer application when used as part of certain tested floor/ceiling assemblies.
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Installation Speed & Ease
Unlike gypsum underlayment, EXACOR subfloor panels do not require a cure time that can slow or halt construction progress.
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High Quality
Manufactured in a quality-controlled environment to maintain product consistency you can depend on.
03 How to Install
Installs like wood with no need for gypsum underlayment.
Unlike gypsum underlayment, EXACOR subfloor panels do not require a cure time that can slow or halt construction progress. That means installation in less time, with less material and from a single trade — no extra tools or skills needed. If they’ve been installing with wood as subflooring, they’re going to love EXACOR MgO panels.
Explore more products.
05 News & Articles
Behind the Build Blog
How to Streamline Fire Resistance and Acoustics in Multifamily Buildings
Learn how EXACOR™ magnesium oxide panels can offer fire resistance and sound-rated alternatives to traditional floor assemblies using gypsum underlayment in multifamily buildings.
Read MoreEXACOR™ MgO Panels vs. Gypsum Underlayment in Multifamily Buildings
Explore the differences between EXACOR™ MgO panels and gypsum underlayment for multifamily buildings.
Read MoreOA Showcase Home Creates Resilient Design with ZIP System® R-Sheathing
Project giving new life to 1920s-era Minneapolis home
Read MoreQ&A on Continuous Insulation with Green Builder Carl Seville
Carl Seville of SK Collaborative shares his thoughts on the building envelope and the role ZIP System® R-sheathing plays for managing air and thermal bridging.
Read More