An expansion joint system comprises a core; and a fire retardant included in the core in an amount effective to pass testing mandated by UL 2079. The core with the fire retardant is configured to facilitate compression of the expansion joint system when installed between substrates by repeatedly expanding and contracting to accommodate movement of the substrates; and the core with the fire retardant included therein is configured to pass the testing mandated by UL 2079.

An expansion joint system includes foam; a fire retardant material included in the foam in an amount effective to pass testing mandated by UL 2079; and wherein the expansion joint system is configured to facilitate compression of the system when installed between substrates by repeatedly expanding and contracting to accommodate movement of the substrates; and the foam with the fire retardant material included therein is configured to pass the testing mandated by UL 2079.

A fire resistant and water resistant expansion joint system comprises a core; and a fire retardant infused into the core. The core infused with the fire retardant is configured to define a profile to facilitate compression of the fire and water resistant expansion joint when installed between substantially coplanar substrates.

A fire resistant and water resistant expansion joint system comprises a compressed lamination of fire retardant infused open celled foam, one coat of an elastomeric waterproofing or water resistant material on the lamination, and another coat of an intumescent material on an opposing surface of the lamination, thereby providing fire resistance in one direction and water resistance in the opposite direction. The intumescent material may be further coated with a similar elastomeric material, thereby providing fire resistance in one direction and water resistance in both directions. In the alternative, the compressed lamination may comprise first and second opposing layers of intumescent material thereon each having a respective layer of elastomeric material to provide both water resistance and fire resistance in both directions.

A fire resistant and water resistant expansion joint system comprises a compressed lamination of fire retardant infused open celled foam, one coat of an elastomeric waterproofing or water resistant material on the lamination, and another coat of an intumescent material on an opposing surface of the lamination, thereby providing fire resistance in one direction and water resistance in the opposite direction. The intumescent material may be further coated with a similar elastomeric material, thereby providing fire resistance in one direction and water resistance in both directions. In the alternative, the compressed lamination may comprise first and second opposing layers of intumescent material thereon each having a respective layer of elastomeric material to provide both water resistance and fire resistance in both directions.

Exterior wall system assemblies, exterior wall system component subassemblies, and exterior wall system components that incorporate drainage features are disclosed. The drainage features can include a channel or conduit assembly by which moisture that collects within concealed spaces of the respective exterior wall system assembly can migrate via gravity from the concealed spaces out through the exterior wall system assembly, wall panel, or wall panel system to the outside of the building. The exterior wall system assemblies, exterior wall system component subassemblies, and exterior wall system components also can include fireblocking features that can inhibit the propagation of fire through the concealed spaces of the exterior wall system assembly.

Structural insulated wall and roof sheathing systems for use in building construction designed to provide a structural building envelope that is moisture permeable but protects from bulk water, excess air, and thermal transfer.

A flashing system includes a one-piece reglet and a one-piece counterflashing. The reglet has a cross-section including a central shaft with a C-shaped channel at its first end forming a sealant pocket and an L-shaped portion formed at its second end having a stem extending perpendicularly in the same direction as a leg of the C-shaped channel. A receiver descends parallel to the central shaft from a stem of the C-shaped channel. The counterflashing has a cross-section including a central bar having a right angle at each end with a first wall extending from the first right angle and a second wall extending from the second right angle. The counterflashing engages the reglet. The first wall has a tip bent at an acute angle to form a top clip. The second wall a tip bent at an obtuse angle to form a drip edge.