Nu-Wool WALLSEAL Fire & Sound Insulation
Nu-Wool WALLSEAL Fire & Sound Insulation offers the same great benefits of our Nu-Wool Premium Cellulose Insulation while being designed specifically with firewall applications in mind. Light green in color, it has the same superior thermal and sound control properties, but was created specifically for use in the UL-U382 firewall and other firewall designs. Because of this, multi-family residential spaces and other applications that require a reliable firewall can enjoy the benefits of fire protection, sound control, energy efficiency, and sustainability by choosing to use Nu-Wool WALLSEAL Fire & Sound Insulation.
All three of the following, outlined firewalls pass the stringent requirements of ANSI/UL 263 and ASTM E-119, even with limited layers of gypsum board. This is because of the high density of Nu-Wool WALLSEAL Fire & Sound Insulation installed using the Nu-Wool WALLSEAL System, which slows the spread of fire by restricting the availability of oxygen. Nu-Wool WALLSEAL Fire & Sound Insulation has also been approved for use in over 50 additional UL listed firewall designs.
Related Documents
Helpful Information
UL-U382 Firewall System
Every homeowner wants the same things: comfort and security. This is especially true when living in multi-family residential communities. Though, often, neighbors can impact your ability to acquire those intangibles. With the Nu-Wool U382 Firewall system, achieving sound control, safety and security, sustainability, and overall satisfaction is now possible.
Our UL-classified U382 Firewall is a proprietary design of Nu-Wool Co., LLC that is fully load bearing and offers two and a half or three hours of protection that costs less, and saves more than other solutions on the market. The U382 meets the requirements of firewall assemblies, and the independently loaded double wall assembly maintains its integrity beyond the nominal one-hour per side, giving the U382 a two-hour and thirty minute rating with only one layer of 5/8 inch type C gypsum board on each side. A 3-hour rating is achieved by using 2 layers of gypsum board on each side.
Sound Performance
STC Ratings:
52 = one layer gyp. board ea. side
62 = two layers gyp. board ea. side
When living in multi-family residential spaces, sound control is crucial. With Nu-Wool’s U382 firewall system, you can experience the comfort of quiet spaces, regardless of what your neighbors are up to. Live in a space that provides the luxury of sound control!
Fire Protection
Fire Rating: 2.5 hours (2-3 hours)
2 hrs. - one layer gyp. board ea. side
3 hrs. - two layers gyp. board ea. side
Safety and security are top of mind for any home owner. Nu-Wool WALLSEAL Fire & Sound Cellulose Insulation used in Nu-Wool’s proprietary UL-U382 firewall design offers unparalleled fire resistance. The U382 firewall system is an industry-leading design that provides protection to you, your family, and your belongings in the case of a potential fire next door.
Overall Performance
With exceptional sound control and fire resistance, the performance of Nu-Wool’s U382 firewall system can’t be beat! Additionally, Nu-Wool WALLSEAL Fire & Sound Cellulose Insulation can prevent air infiltration, as the insulation fills the entire firewall cavity, eliminating voids and air pockets common with most other firewall designs. Another added bonus of the U382 firewall system is its ability to prevent odor transmission between units.
Sustainability Story of Cellulose
Made from recycled paper content and treated with a naturally-occuring fire retardant, Nu-Wool WALLSEAL Fire & Sound Cellulose Insulation is a eco-friendly insulation. It’s engineered to achieve peak performance standards without compromising on its sustainable makeup. We’re firm believers that the best products can still have a positive environmental impact!
In the diagram below, you can learn more about the sustainability process as it relates to Nu-Wool:
Other Proprietary Firewall Systems
Cost Saving Two-Hour Firewall
UL-U360
Using Only 3 layers 5/8 in. Type X Gypsum Wallboard
Underwriters Laboratories Bearing Wall Rating: Rating 2 Hr.
Riverbank Acoustical Laboratories STC Rating: 51
Sound Absorbing Two-Hour Firewall
UL-U369
Using 4 layers 5/8 in. Type X Gypsum Wallboard
Underwriters Laboratories Bearing Wall Rating: 2 Hr.
Riverbank Acoustical Laboratories STC Rating: 58
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Would you like more information on Nu-Wool brand insulation products? Email us today or locate a Nu-Wool installer or retailer near you.