Which wall assembly has the best STC rating?
Drywall between double studs can dramatically reduce the STC rating of an assembly.
- Insulation will noticeably improve the STC rating of an assembly.
- Staggered or double stud walls are higher rated than single stud walls.
- Metal stud walls perform better than wood stud walls.
What is the STC of a standard wall?
30 to 34
Typical existing wall construction (the most common method is wood stud construction with insulation and 5/8” drywall on both sides) has an STC rating of 30 to 34.
What kind of insulation do you use for metal studs?
The best option is to use rigid foam on the exterior side of the studs, which avoids the thermal bridging issue completely.
What are three 3 methods of increasing the STC rating of a wall assembly?
Top Ways to Increase Wall STC:
- Higher Gauge: By moving to lighter gauge stud, such as 25-gauge, the flexibility of the wall greatly improves.
- Space Out Studs: Move studs from 16″ o.c. to 24″ o.c., where possible.
- Increase Depth of Studs: 6″ 25-gauge studs may offer 3-4 STC point improvement over the same 3-5/8″ stud.
What is the STC rating of fiberglass insulation?
39
Fiberglass (or traditional) insulation falls in the middle range of options bringing the STC rating to 39. This option provides so a bit more privacy and blockage from sound entry. Open cell spray foam ties with standard fiberglass at an STC rating of 39 as well.
Are metal studs good for soundproofing?
Metal framing has a bad reputation when it comes to sound transmission. Ted White, president of The Soundproofing Co., Bay City, Mich., says yes, compared to wood, metal is more conductive, but insists that metal itself isn’t the problem, but rather the assembly technique is.
Can I use rockwool with metal studs?
ROCKWOOL insulation is ideal for improving the fire safety, thermal properties and sound absorption of partition walls with a metal frame – enhancing both the safety and comfort of a building’s indoor environment.
Does fiberglass insulation dampen sound?
As mentioned above, rigid fiberglass insulation helps to reduce noise by absorbing sound. The thicker and denser the batt or roll of rigid fiberglass, the better it will absorb the noise. It is one of the best soundproofing materials, but it will not stop noises 100 %.
Is Rockwool more soundproof than fiberglass?
Both rock wool and fiberglass are easy to cut and install. But where rock wool offers up to 10 decibels of noise reduction, fiberglass provides a range of noise reduction between 4 and 10 decibels. Rock wool can reach prices that are double that of fiberglass.
What does STC 50 sound like?
With a Sound transmission class rating of 50, speech cannot be heard through the walls, and loud sounds are only faintly audible.
What fiberglass insulation is best for soundproofing?
Owens Corning Rigid Fiberglass Panels Owens Corning makes a really good option for soundproofing. Owens Corning 703 Fiberglass Boards are pre-cut panels so you could use them as is without having to do any cutting.
Is fiberglass good for soundproofing?
Fiberglass has to be one of the best choices when it comes to soundproofing. It is useful to soundproof walls, ceilings, and floors in closed spaces like music production studios. Acoustic fiberglass as a form of audio insulation consists of rather small particles of compressed glass or plastic.