Homasote® structural fiberboard products are used in residential and commercial building. Among its applications are sound control, roof decking, concrete forming, expansion joint, tackable panels, and insulation.

440 SoundBarrier ®

440 SoundBarrier® controls sound in floors, walls and ceilings.

Independently lab tested and time-proven in millions of square feet of residential and commercial structures, 440 SoundBarrier® is a special-density, structural board made from 100 percent environmental Homasote® cellulose fiber, a homogeneous composition manufactured with uniformly distributed protection against termites, rot and fungi and resistance to moisture.

It also insulates, with twice the R-value of wood.

Made with FSC® certified material.

Carpenters and do-it-yourselfers can easily install 440 SoundBarrier® in room partitions and peripheral walls, ceilings and floors, in:

  • single or multi-family housing
  • high and low-rise apartments and condominiums
  • motels
  • schools
  • professional buildings
  • assisted living facilities

For more information please check out Homasote’s website or call our office at 732.905.5300

  • FSC® Certified
  • Lightweight
  • Easy to handle, cut and shape
  • Widely available in convenient sizes
  • Ready to apply directly to framing
  • Provides excellent noise attenuation when installed as recommended
  • Provides excellent, moisture-resistant thermal insulation



FHA Material Release 1150e and 930e

Thickness Available Sizes Weight
1/2″ 4′ x 4′, 4′ x 8′, 4′ x 10′ 1.2 lb/sq. ft.
5/8″ 4′ x 8′ 1.5 lb/sq. ft.
3/4″ 4′ x 8′ 1.8 lb/sq. ft.

Why I choose SoundBarrier 440


ComfortBase® is a resilient board that cushions hard concrete, yet is structural and durable enough for heavy traffic and moving furniture.

The single-ply concrete flooring system is perfect for finishing basements or improving concrete slab floors, increasing the floor surface temperature with twice the insulation of wood, and reducing foot, leg and back pain caused by standing, sitting or walking on concrete floors.

The uniquely engineered bottom surface provides a built-in ventilation system, which allows concrete to breath naturally without causing panels to curl or bow.

ComfortBase is easy to apply over concrete floors; following our float method for installation under carpet and pad eliminates the need for stubborn mechanical fasteners.

Comfort Base may be also used with laminate floors, following manufacturers installation instructions.

For more information please check out Homasote’s website or call our office at 732.905.5300

  • Cushioning structure reduces foot, leg and back pain
  • Built-in ventilating grid system improves room conditions
  • Easy to install; no mechanical fasteners required*
  • Rooms feel warmer, helping reduce heating bills
  • Adds only 1/2″ to floor height

*Certain applications – see installation instructions

Code Compliances

ICC-ES Report ESR-1374