Angle joint for sandwich panels and method of fabricating same

Abstract

An angle joint between two sandwich panels, wherein the sandwich panels each have a first outer layer and a second outer layer spaced from the first outer layer by a panel core, and an angle edge including an edge portion of the panel core and an edge portion of the first outer layer. The joint has an interface between the panel cores and the interface has an entranceway at an inner corner comprised of the edge portions of the first outer layers. A cavity in the panel cores is defined by a portion of the second outer layers and a portion of each panel core. The cavity spans across a second entranceway to the interface between panel cores. Bonding material applied in the cavity and at the inner corner connects the sandwich panels together in a manner that maintains an area of dead air space at the interface to inhibit or to reduce thermal transmissions across the joint.

Description

TECHNICAL FIELD OF THE INVENTION[0001]The present invention relates generally to constructing buildings, and more particularly, to connecting adjacent sandwich panels with an angle joint that reduces or minimizes thermal bridging across the joint.DESCRIPTION OF THE RELATED ART[0002]There is an increasing global demand for lower cost buildings such as houses, warehouses and office space. The demand for lower cost buildings is particularly strong in developing countries where economic resources may be limited and natural resources and raw materials may be scarce. For example, in areas of the Middle East or Africa, conventional building materials such as cement, brick, wood or steel may not be readily available or, if available, may be very expensive. In other areas of the world, poverty may make it too costly for people to build houses or other buildings with conventional materials.[0003]The demand for lower-cost housing also is high in areas afflicted by war or natural disasters, suc...

AI Technical Summary

Benefits of technology

[0005]The present invention provides an alternative to conventional construction materials and techniques. Buildings, such as houses, commercial buildings, warehouses, or other structures can be constructed by composite sandwich panels (also referred to as “sandwich panels” or “composite panels”), which have an insulative core and one or more outer layers. The buildings can be constructed by gluing several sandwich panels together, and usually traditional fasteners, such as screws, rivets, nails, etc., are not needed for such connections. Generally, composite sandwich panels offer a greater strength to weight ratio over traditional materials that are used by the building industry. Because they weigh less than traditional building materials, the handling and transport of composite sandwich panels is generally less expensive. The composite sandwich panels are generally as strong as, or stronger than, traditional materials including wood-based and steel-based structural insulation panels, while being lighter in weight. The composite sandwich panels also can be used to produce light-weight buildings, such as floating houses or other light-weight structures.

Problems solved by technology

The demand for lower cost buildings is particularly strong in developing countries where economic resources may be limited and natural resources and raw materials may be scarce.

For example, in areas of the Middle East or Africa, conventional building materials such as cement, brick, wood or steel may not be readily available or, if available, may be very expensive.

In other areas of the world, poverty may make it too costly for people to build houses or other buildings with conventional materials.

These devastating events often lead to widespread destruction of large numbers of buildings and houses, especially when they occur in densely populated regions.

The rebuilding of areas affected by these events can cause substantial strain on the supply chain for raw materials, making them difficult or even impossible to obtain.

Furthermore, natural disasters often recur and affect the same areas.

If a destroyed building is rebuilt using the same conventional materials, it stands to reason that the building may be destroyed or damaged again during a similar event.

Prefabricated buildings, however, are made from conventional materials that may be scarce or expensive to obtain.

Thermal bridges are particularly undesirable for external walls of a structure where temperatures may vary greatly from the outside of the structure to the inside of the structure.

Images