A method of and system for on-job-site spray coating of clean fire inhibiting liquid chemical (CFIC) liquid all over the exposed interior surfaces of raw and treated lumber, sheathing and wood used in a completed section of a wood-framed assemblies in a wood-framed building during its construction phase. The system includes a liquid spray pumping subsystem having a reservoir tank for holding a supply of the CFIC liquid; and a hand-held liquid spray nozzle for spraying the CFIC liquid from the reservoir tank, over the exposed interior wood surfaces of lumber and sheathing used in a completed section of a wood-framed assembly in a wood-framed building during construction phase. The CFIC-coated wood surfaces suppress fire ignition and suppression by interfering with free radicals (H+, OH, O) produced during the combustion phase of a fire.

A method of and system for on-job-site spray coating of clean fire inhibiting liquid chemical (CFIC) liquid all over the exposed interior surfaces of raw and treated lumber, sheathing and wood used in a completed section of a wood-framed assemblies in a wood-framed building during its construction phase. The system includes a liquid spray pumping subsystem having a reservoir tank for holding a supply of the CFIC liquid; and a hand-held liquid spray nozzle for spraying the CFIC liquid from the reservoir tank, over the exposed interior wood surfaces of lumber and sheathing used in a completed section of a wood-framed assembly in a wood-framed building during construction phase. The CFIC-coated wood surfaces suppress fire ignition and suppression by interfering with free radicals (H+, OH, O) produced during the combustion phase of a fire.

A method of and system for designing and constructing high-density multi-story wood-framed buildings, and Class-A fire-protected building components, and methods and factories for producing the same in an economical manner. An on-job-site method is provided for treating wood-framed buildings so that such wood-framed buildings demonstrate Class-A fire-protection and improved defense against total fire destruction.

A method of and system for designing and constructing high-density multi-story wood-framed buildings, and Class-A fire-protected building components, and methods and factories for producing the same in an economical manner. An on-job-site method is provided for treating wood-framed buildings so that such wood-framed buildings demonstrate Class-A fire-protection and improved defense against total fire destruction.

Composite cellulosic products and processes for making same. In some embodiments, the composite cellulosic product can include a plurality of cellulosic substrates and an at least partially cured binder. Prior to curing, the binder can include a mixture formed by combining magnesium oxide, water, and magnesium chloride. A weight ratio of the magnesium oxide to the magnesium chloride in the binder can be at least 2.2:1 to 8.5:1.

A multi-layer panel for use as structural sheathing with a coating that is both fire resistant and water resistant. The multi-layer panel may be a wood structural panel, such as OSB or plywood. The coating provides building-code-compliant fire resistance characteristics. The coating also acts as a water resistant barrier (WRB) layer on a surface of the panel. The joint fire-resistant and water-resistant barrier (FR/WRB) coating may be applied to one or both faces of the panel at the manufacturing facility, prior to shipping or installation at a job site. The coating may also be applied to panel edges.

A multi-layer panel for use as structural sheathing with a coating that is both fire resistant and water resistant. The multi-layer panel may be a wood structural panel, such as OSB or plywood. The coating provides building-code-compliant fire resistance characteristics. The coating also acts as a water resistant barrier (WRB) layer on a surface of the panel. The joint fire-resistant and water-resistant barrier (FR/WRB) coating may be applied to one or both faces of the panel at the manufacturing facility, prior to shipping or installation at a job site. The coating may also be applied to panel edges.

A two-part flame-retardant, a flame-retardant oriented strand (OSB) and method for forming a flame-retardant OSB is provided. The two-part flame-retardant composition includes an aqueous solution containing a water-soluble flame-retardant and a flame-retardant powder that is incorporated into an oriented strand board without substantially affecting the mechanical properties of the oriented strand board. The method includes applying the aqueous solution containing a water-soluble flame-retardant to an oriented strand board furnish and applying a flame-retardant powder to the wetted furnish, without requiring an additional drying step.

A two-part flame-retardant, a flame-retardant oriented strand (OSB) and method for forming a flame-retardant OSB is provided. The two-part flame-retardant composition includes an aqueous solution containing a water-soluble flame-retardant and a flame-retardant powder that is incorporated into an oriented strand board without substantially affecting the mechanical properties of the oriented strand board. The method includes applying the aqueous solution containing a water-soluble flame-retardant to an oriented strand board furnish and applying a flame-retardant powder to the wetted furnish, without requiring an additional drying step.

A cellulose-based fire resistant insulation and related method for making the same. The insulation includes a plurality of superstructures that establish voids in the insulation. The insulation may be blown in place while the superstructures maintain the void portion of the insulation. The insulation is made with fiber residuals, either alone or in combination with other cellulosic materials. The method of making the insulation includes the steps of treating the cellulosic materials with a fire retardancy chemical or chemicals and creating bonds between the fibers to form the superstructures.