Stc 50 Wood Wall Construction

Resilient channel can improve the stc rating of an assembly.

Stc 50 wood wall construction. Fire resistance ratings with 3 4 u ltracode core panels in steel framed partition assemblies. Walls partitions and floor ceiling assemblies separating dwelling units from each other or from public or service areas shall have a sound transmission class stc of not less than 50 45 if field tested for air borne noise when tested in accordance with astm e 90. This catalog of sound rated wall and the purpose of the indexing system is. Note that this is a minimal amount of isolation and you will likely be disturbed by neighbors.

Wood stud construction for sound control. 1 2 13 mm plywood subfloor. The international building code ibc requires lab tested stc 50 for walls floors and ceilings for new construction. Staggered or double stud walls are higher rated than single stud walls.

The use of resilient channels for attaching a gypsum board ceiling to wooden joists or. Adding additional layers of drywall can improve the stc rating of an assembly. 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. Penetrations or openings in construction assemblies for piping.

Staggered stud wall construction with 2 layers of 16mm 5 8 plasterboard on studs of 95x35mm 4 x 11 2 on a 120mm 4 3 4 common base. With 1 7 8 48 mm 6d nails 6 152 mm o c. The same method used to improve the stc value of walls applies to floors. No insulation 50 with insulation 54.

The following notes shall be provided on the plans or in their contents delineated as details on the plans. Remember that a standard wood stud wall has an stc of 35 while a metal stud wall 25 gauge has an stc of 44. Wood framed resilient partition systems with safb can achieve up to 59 stc with double layer designs and up to 50 stc with single layer designs have achieved up to 4 hr. 5 8 15 9 mm toughrock fireguard x products applied perpendicular to 2 x 10 wood joists 16 406 mm o c.

Catalog of stc and iic ratings for wall and floor ceiling assemblies russell b. Require an stc rating of 50 for walls and floors and an iic rating of 50 for floors. Dupree office of noise control california department of health services berkeley california 94704 introduction building codes. The specified rating of 45 for field tested assemblies noted in section 1207 10 of the labc is to be used for acceptance of individual jobs only.

Insulation will noticeably improve the stc rating of an assembly.