Huber Engineered Woods has introduced a new brand to join AdvanTech subfloor assembly and ZIP System building enclosure products with EXACOR Magnesium-Oxide (MgO) panels. The MgO structural panels offer builders a way to provide fire resistance1 and acoustical performance in multifamily and light commercial flooring assemblies. The panels can be installed by existing framing crews and can eliminate the need for an additional subcontractor to pour the self-leveling gypsum underlayment commonly used in these assemblies.
As a component of flooring systems, EXACOR panels offer building teams an easy- to-work panel design featuring proprietary internal mesh fiber for structure and a Magnesium-Oxide formula for dimensional stability, fire protection1 and sound dampening.
Available in 1/2-, 5/8- and 3/4-inch nominal thickness options, EXACOR can help reduce both material needs and labor time compared to fire-rated floor assemblies that require gypsum underlayment. It can be used as both a subfloor underlayment over traditional OSB or plywood (UL 263 Design No. L528) and as a structural subfloor (UL 263 Design No. L601) and, as part of certain tested assemblies, without the use of gypsum underlayment. In fact, with EXACOR panels, builders can completely skip the extra step of adding gypsum underlayment in flooring applications for certain 1-hour fire-rated floor/ceiling assemblies without sacrificing sound protection (specifically, UL 263 Design Nos. L528 and L601).
- Follow published fire-resistance rated assembly requirements and consult local building codes and designer of record for fire-resistant design requirements. E84 Standard Test Method for Surface Burning Characteristics of Building Materials conducted on 1/2 inch and 3/4 inch.