Do you install soundproof and fire-rated drywall?
Yes to both. Fire-rated board is Type X or Type C and is required by code in specific assemblies rather than chosen for preference. Sound control is different, because no single board makes a room quiet on its own. It comes from the whole wall assembly, and the sealing matters as much as the material.
Fire-rated board is a code requirement, not an upgrade
Type X is thicker board with glass fibre in the core that holds together longer in a fire. Type C performs better again and appears in some rated assemblies.
Where it is required is set by code and by the assembly, not by preference. Garage ceilings under living space, walls between a house and an attached garage, corridors, shafts, and the separations between units in multifamily buildings are the usual ones.
A rated assembly is only rated if it is built as tested, which includes the fastener spacing and the firestopping at penetrations. Board alone does not give you the rating.
Sound is about the assembly
Mass, separation and damping are what stop sound. That means heavier or doubled board, breaking the mechanical path between the two faces with resilient channel or a staggered or double stud wall, damping compound between layers, and insulation in the cavity.
Sealing decides how well any of it works. An unsealed outlet box, a gap at the top plate or an undercut door will undo an expensive wall, because sound goes through the hole rather than the wall.
What we build
Rated assemblies for garages, corridors, shafts and multifamily separations, and sound-rated walls and ceilings for studios, home theatres, home offices, and any room next to a shared wall.
We seal the perimeters and the penetrations as part of the assembly rather than leaving them to the finish trades, which is where most sound-rated walls quietly fail.
The Work Behind This Answer
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