Stc Roof Assembly

The stc rating shown reflects testing or evaluation of an assembly with one or more products under test conditions and may not apply to all products listed for each assembly.

Stc roof assembly.

Moisture resistant assemblies aesthetic assemblies sa932 sa933 sheetrock gypsum panels submittal sheet wb1473 usg area separation walls. Toughrock fireguard c products densarmor plus fireguard c products. 50 stc with single layer designs have achieved up to 4 hr. A proprietary roof deck assembly that consists of a lightweight sandwich of sound absorptive shredded wood panel rigid insulation and roof board provides sound absorption on the interior space.

Insulation will noticeably improve the stc rating of an assembly. Adding additional layers of drywall can improve the stc rating of an assembly. Helpful documents and resources for usg s roof assemblies can be found on this page. Trusses supporting metal roof deck panels covered by 1 2 12 7 mm regular gypsum sheathing either loose laid or adhesively or mechanically attached to roof deck.

Ultimately the design and detailing of the project assembly or system is the responsibility of a professional and all projects must comply with applicable building. Metal stud walls perform better than wood stud walls. Resilient channel can improve the stc rating of an assembly. Fire resistance ratings with 3 4 ultracode core panels in steel framed partition assemblies for more information see the following brochures.

By itself this system provides a relatively low level of sound isolation stc 31 and does not fully prevent rain noise from being audible in the interior space.