Stc 50 Wall Section

Usg provides resources here for our ul wall assemblies for seamless integration into any construction project.

Stc 50 wall section. 1 2 12 7 mm toughrock fireguard 45 sup sup gypsum board applied vertically or horizontally to each side of 2 x 4 wood studs 16 406 mm o c. Alternative stc 50 wall build ups high stc ratings can be achieved without the use of special acoustical products if the gauge of the steel studs is soft. Weigh at least 50 less than masonry walls allowing faster easier installation for more information see the following brochures. It is recommended to consult a professional acoustician for more detailed information or to analyze the specifics.

Figure 2 resilient channels over wood studs break the vibration path helping to 1increase sound transmission loss stc. Figure 3 insulating wall cavities noticeably improves sound transmission loss by providingbetween one wall surface and. These wall assembly files are used for planning and estimation purposes for many ul wall types such as fire rated wall assemblies. Horizontal edge joints and horizontal butt joints on opposite side of studs need not be staggered.

In order to achieve an stc of 50 and higher you must stagger or double the studs for wood stud walls use a resilient mount such as iso clips and or add multiple layers of soundproofing materials or drywall. However the soft gauge studs reduce the stiffness of a wall and limit the amount of weight the wall can hold. A soft metal stud will reduce the efficiency of transmitted vibrations noise. Figure 1 the addition of gypsum board to one surface effectively increases wall mass.

Area separation wall systems area separation wall submittal sheet sa925 wb2129 sheetrock shaft wall systems tested systems achieve up to 58 stc. Below are the stc ratings of various wall assemblies each presented to help illustrate concepts improvements and rules of thumb. Stc is calculated by taking the transmission loss tl values tested at 16 standard frequencies over the range of 125 hz to 4000 hz and plotted on a graph. With 1 3 8 35 mm phosphate coated nails spaced 8 203 mm o c.