Homasote Company

The only structural fiberboard recognized in UL assemblies and independently tested systems for metal, wood stud walls, and most finished floor systems.  The 440 SoundBarrier® is an environmentally friendly cellulose fiber material.  This homogeneous composite protects against termites, rot, fungi, and resists moisture.  

The PINnacle™ can be used as complete walls or separate tack surfaces in schools, public buildings, and offices.   PINnacle’s velvet-like sanded surface is a class of its own.

A unique material that does double duty as light-duty forming material for walkways, patios, pool aprons, and driveways and as an expansion joint where masonry or concrete walls meet outside aprons, walks, patios, or steps.

• No bleeding or leaching into concrete
• Compatible with sealants
• Flexible in all temperatures
• Rigid enough to screed off 
• Blends with colored concrete
• Perfect for pool installations and tile setting
• Great for formations of paths and landscaping