Structural insulated sheathing panel and methods of use and manufacture thereof

A structural sheathing and insulating system for a building having a structural frame, the system comprising:

• at least two adjacent panel assemblies, each panel assembly having at least one edge and including:
• a structural panel having an outer surface and an opposite inner surface;
• a water-resistant barrier layer secured to the outer surface of the structural panel;
• an insulation layer secured to the inner surface of the structural panel;
• and
• a reinforcing layer secured to the insulation layer opposite the structural panel,
• wherein the structural panel the water-resistant barrier layer, the insulation layer, and the reinforcing layer of each panel assembly are pre-formed into an integral four-layer arrangement, and wherein each of the panel assemblies aligns with its at least one edge proximate to the at least one edge of the adjacent panel assembly to define a longitudinal seam between the two adjacent panel assemblies;
• and
• a water-resistant sealant that seals the longitudinal seam between the proximate edges of the adjacent panel assemblies,
• wherein in use each pre-formed panel assembly is placed external to the structural frame, with its reinforcing layer facing inward toward the structural frame, and fastened securely in place to the structural frame by fasteners extending all the way through the pre-formed panel assembly and into the structural frame, and
• wherein in use the installed structural sheathing and insulating system exhibits at least the minimum allowable shear capacity (pounds per linear feet (plf)) for braced wall panels constructed according to method 3 described in 2006 International Building Code (BC) Section 2308.9.3, and as determined in accordance with 2006 IBC and International Code Council Evaluation Service (ICC-ES) Acceptance Criteria 269 (AC269).

A structural sheathing and insulating system for a building having a structural frame, the system comprising:

• at least two adjacent panel assemblies, each panel assembly having at least one edge and including:
• a structural panel having an outer surface and an opposite inner surface, wherein the structural panel is made of a lignocellulosic material;
• a water-resistant barrier layer secured to the outer surface of and coextensive with the structural panel;
• an insulation layer secured to the inner surface of the panel;
• and
• a reinforcing layer secured to the insulation layer opposite the structural panel, wherein the reinforcing layer is made of a lignocellulosic material and has a thickness that is less than about 50% of a thickness of the respective structural panel, and wherein the reinforcing layer is not structural-rated but provides added strength to increase a shear capacity of the panel assembly;
• wherein the structural panel, the water-resistant barrier layer, the insulation layer, and the reinforcing layer of each panel assembly are pre-formed into an integral four-layer arrangement, and wherein each of the panel assemblies aligns with its at least one edge proximate to the at least one edge of the adjacent panel assembly to define a longitudinal seam between the two adjacent panel assemblies;
• and
• a water-resistant sealant that seals the longitudinal seam between the proximate edges of the adjacent panels,
• wherein in use each pre-formed panel assembly is placed external to the structural frame, with its reinforcing layer facing inward toward the structural frame, and fastened securely in place to the structural frame by fasteners extending all the way through the pre-formed panel assembly and into the structural frame,
• wherein in use the installed structural sheathing and insulating system exhibits at least the minimum allowable shear capacity (pounds per linear feet (plf)) for braced wall panels constructed according to method 3 described in 2006 International Building Code (IBC) Section 2308.9.3, and as determined in accordance with 2006 IBC and International Code Council Evaluation Service (ICC-ES) Acceptance Criteria 269 (AC269), and
• wherein in use the installed structural sheathing and insulating system is structural without installing additional structural bracing.