Using Quietrock drywall AND Rockwool Sound Insulation?

Does QuietRock really work?

QuietRock can improve the soundproofing by 15 to 20 points on the STC scale, while it will take up to four sheets of drywall to have the same effect. If you’re doing both sides of a partition wall, that’s 2 sheets of QuietRock for 8 of the gypsum.

Can Rockwool be used for sound insulation?

Rockwool is absolutely fantastic at reducing the echo in a room, or in other words, it’s great for absorbing sound, which is why acoustic panels are generally made of Rockwool.

Does double drywall help with sound?

While double drywall wont make a room silent, it will help compared to a standard single 1/2″ wall. Personally I would do double 5/8″ with green glue if your looking at real sound deadening.

Does QuietRock help impact noise?

QuietRock attenuates airborne noise (rated by STC). In laboratory testing on ceiling applications, QuietRock was found to provide very little if any attenuation of impact noise (IIC).

Why is QuietRock not recommended for ceilings?

Because of the design of the QuietRock 510 to achieve its acoustical performance, this product is not suitable for installation on ceilings as it may sag over time. One work-around solution is to install a layer of 5/8″ standard drywall over the QuietRock 510 and stagger the seams to prevent the product from sagging.

Can you install QuietRock over existing drywall?

As long as the ceiling is standard single layer drywall over a joist system, QuietRock can be installed directly over the existing drywall and screwed into the ceiling joists using suitable drywall screws. Please note that QuietRock provides improved sound reduction for airborne noise only.

What insulation is best for soundproofing?

fiberglass insulation

When soundproofing is your goal, your best options out there are fiberglass insulation and blown-in cellulose insulation. Both materials are incredibly good at their jobs; they insulate incredibly well but also have the coveted noise-reducing properties that many homeowners are seeking.

Is Rockwool safe and sound worth it?

Safe and sound is a fantastic product. I have recently reno’d my basement and I used Roxul comfort batt in the walls and safe and sound in the interior walls and between the floor joists. All the products are so easy to work with – easy to cut – easy to install and no itching.

How thick should Rockwool be for soundproofing?

Just like with soundproofing, the thicker the rockwool the better it is at absorbing soundwaves, and this is especially true for low frequency sounds. If you’re trying to absorb low-end sounds, then 6” Rockwool, or 8” if you can get it, will be your best bet. For general purposes, 2” should be more than enough.

Which drywall is best for soundproofing?

There are various drywall types, but the Type X drywall is the most commonly used for soundproofing. It is a fire-resistant board, and a board of 5/8″ thickness can resist fire for an hour, which concurrently makes it the best drywall to reduce noise.

Can you use green glue with QuietRock?

You generally would use 2 or more layers of standard drywall with Green Glue (or QuietGlue Pro) between them – OR – a single layer of QuietRock. Installing multiple layers of QuietRock with Green Glue between them kind of negates the purpose of buying the “factory assembled” drywall assembly.

What is the STC rating of 5/8 drywall?

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 is the STC rating of Quietrock?

QuietRock 530 is a versatile, high performance sound damping gypsum panel that delivers superb noise reduction and impact resistance. This ‘superpanel’ is UL fire-resistance rated, STC-rated, shear-rated, and impact-resistant.
Acoustic Ratings.

Does thicker drywall help with sound?

More thickness means more mass and more mass means better soundproofing. The 5/8″ is also more durable sheetrock versus the 1/2″ option.

What does an STC rating of 50 mean?

A sound blocking level of STC 50 means that a listener in a quiet room would need to exert effort to hear raised speech levels in adjacent rooms, and the speech would not be understandable or disruptive.

What STC rating is soundproof?

STC rating of 38-42 is considered good soundproofing for residential. STC rating of 50-65 is professional, commercial soundproofing for recording studios, etc. These terms and definitions are related to Sound Transmission Class and will help provide the full picture of how sound is measured.

How do you calculate STC for walls?

Find the average transmission loss: Add up all the total frequencies you recorded, then divide that number by the total number of frequencies you tested. For example, if you recorded all 16 frequencies, divide your total by 16. The number you calculate is your STC rating.

How can I improve my STC rating?

Summary: Increasing STC Ratings

Use common rules of thumb, including moving to lighter gauge studs and spacing studs further apart. Then consider adding soundproof membranes and other soundproofing materials to improve your wall STC to 50, 55, or beyond.

What is the best STC rating?

Sound Transmission Class (STC):

Which wall assembly has the best STC rating?

Drywall between double studs can dramatically reduce the STC rating of an assembly.

1. Insulation will noticeably improve the STC rating of an assembly. …
2. Staggered or double stud walls are higher rated than single stud walls. …
3. Metal stud walls perform better than wood stud walls.