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.

The present invention provides compositions and methods related to aerogel materials, including polyimide-based aerogels. In particular, aerogel materials optimized to have certain physical and chemical properties such as flexural and compressive strength are provided. In some embodiments, the aerogel materials can be at least partially carbonized.

Insulated wall and roof sheathing systems for use in building construction designed to provide moisture permeable wall panels that protect from bulk water, excess air, and thermal transfer.

A foam wall structure includes a frame, at least one primary support member, a slab of polyiso board and a foam layer. The frame can include: a first member, a second member spaced apart from the first member; and two side members extending between the first and second members. The frame defining a front frame surface and an opposite rear frame surface. The at least one primary support member can be positioned between the two side members and extend between the first and second member. The primary support member defines a front support surface and an opposite rear support surface. The slab of polyiso board may be attached to the front frame surface. The foam layer can be received within at least a portion of the frame and overlies the front surface of the primary support member. A method of making a foam wall structure and a pre-fabricated wall is also disclosed.

The present invention provides compositions and methods related to aerogel materials, including polyimide-based aerogels. In particular, aerogel materials optimized to have certain physical and chemical properties such as flexural and compressive strength are provided. In some embodiments, the aerogel materials can be at least partially carbonized.

The present invention provides compositions and methods related to aerogel materials, including polyimide-based aerogels. In particular, aerogel materials optimized to have certain physical and chemical properties such as flexural and compressive strength are provided. In some embodiments, the aerogel materials can be at least partially carbonized.

Insulated wall and roof sheathing systems for use in building construction designed to provide moisture permeable wall panels that protect from bulk water, excess air, and thermal transfer.

Insulated wall and roof sheathing systems for use in building construction designed to provide moisture permeable wall panels that protect from bulk water, excess air, and thermal transfer.

A method of insulating a register box in which the register box has a body and a duct. The method includes accessing the register box such that the interior of the register box can be reached, removing existing insulation from the interior of the body of the register box, injecting an expandable polymeric material into the interior of the body of the register box, and allowing the expandable polymeric material to cure for a period of time. The opening of the duct of the register box is blocked during the step of curing. The step of injecting includes inserting a foam gun into an interior of the body of the register box and directing the expandable polymeric material from the foam gun toward a wall of the body of the register box.

A structure includes a skin and a foam member. The foam member has a molded contour, the mold contour being configured to provide tooled surface for the skin. When the skin is a composite skin, the foam member provides support for the skin so that the skin can be cured under heat and pressure. A method of making the foam member for a foam stiffened structure includes creating a mold having an interior cavity which resembles a desired shape the foam member. A subsequent step involves introducing a foam mixture into the mold. Next, the foam mixture is allowed to polymerize so as to expand and distribute within the cavity of the mold. The method further includes selectively controlling a density of the foam member in the mold. The foam member is at least partially cured. The foam member is assembled with a skin to produce the foam stiffened structure.