Podcast
Questions and Answers
What is the primary reason why the sound-reducing property of the air space is negated in lightweight walls?
What is the primary reason why the sound-reducing property of the air space is negated in lightweight walls?
- The direct structural connection between the two wall surfaces (correct)
- The type of gypsum board used
- The lack of insulation in the stud cavity
- The use of wood studs
What is the potential benefit of using light-gauge steel studs at 24 inches in the center instead of wood studs at 16 inches in the center?
What is the potential benefit of using light-gauge steel studs at 24 inches in the center instead of wood studs at 16 inches in the center?
- Decreased transmission loss
- Increased sound transmission
- No impact on sound transmission
- Less sound energy transmission (correct)
What is the estimated STC rating of a wood-framed wall with 3%inch-thick fiberglass acoustical insulation and 2-inch gypsum board on both sides?
What is the estimated STC rating of a wood-framed wall with 3%inch-thick fiberglass acoustical insulation and 2-inch gypsum board on both sides?
- STC 48
- STC 42
- STC 39 (correct)
- STC 35
What is the purpose of using resilient channels in wood-framed assemblies?
What is the purpose of using resilient channels in wood-framed assemblies?
What is the estimated STC rating of a steel stud-framed wall with 3%inch-thick fiberglass acoustical insulation and 2-inch gypsum board on both sides?
What is the estimated STC rating of a steel stud-framed wall with 3%inch-thick fiberglass acoustical insulation and 2-inch gypsum board on both sides?
Where are resilient channels typically installed in wood-framed assemblies?
Where are resilient channels typically installed in wood-framed assemblies?
What is the STC rating of a wood-framed wall with a 6-inch gypsum board on resilient channels spaced at 24 inches vertically?
What is the STC rating of a wood-framed wall with a 6-inch gypsum board on resilient channels spaced at 24 inches vertically?
What is the effect of adding layers of gypsum board on one or both sides of a wall?
What is the effect of adding layers of gypsum board on one or both sides of a wall?
What is the effect of using two layers of 5-inch gypsum board on wood-framed walls with insulation?
What is the effect of using two layers of 5-inch gypsum board on wood-framed walls with insulation?
What is the effect of using inch gypsum board instead of -inch gypsum board?
What is the effect of using inch gypsum board instead of -inch gypsum board?
What is the effect of increasing the density of insulation while maintaining a constant thickness?
What is the effect of increasing the density of insulation while maintaining a constant thickness?
What is the incorrect assumption about acoustic insulation?
What is the incorrect assumption about acoustic insulation?
What is the most critical property in a wall cavity for optimal wall performance?
What is the most critical property in a wall cavity for optimal wall performance?
What is the primary purpose of using an acoustical sealant in wall construction?
What is the primary purpose of using an acoustical sealant in wall construction?
What is a common characteristic of acoustical sealants?
What is a common characteristic of acoustical sealants?
What is a technique used to attenuate airborne sound in ceilings and floors?
What is a technique used to attenuate airborne sound in ceilings and floors?
What is a common pathway for sound transmission in walls?
What is a common pathway for sound transmission in walls?
What is similar between wall construction and floor/ceiling joist construction techniques?
What is similar between wall construction and floor/ceiling joist construction techniques?
