Abstract: A class of undulated building structures constructed from sheets of suitable material and composed of sinuous curved faces meeting at constant angle at sinuous curved edges. The curved faces ensure a deformation-free (and hence a strain-free) surface, a critical feature for large-scale architectural constructions from sheet materials. The structures can be constructed by scoring a single sheet and folding the entire structure or from parts which are scored and folded. A variety of 2-dimensional scoring designs and a morphological technique for their derivation is disclosed. The technique enables the generation of symmetric and asymmetric 3-dimensional developable structures with combinations of convex and concave angle folds. The technique also provides the enabling feature for forming by various manufacturing methods. The structures can also be constructed from cast materials.

Abstract: Corner members, such as posts useful in construction of buildings and the like are described. The invention relates more specifically to recessed and protruding corner posts for building construction, the posts being formed from a polymer based cellulose reinforced composite. The posts provide sturdy, durable corner connections, for exterior building materials, that are easy to install, relatively inexpensive, and aesthetically pleasing.

Abstract: A combined molding cap and molding strip with the molding strip having opposed attachment surfaces extending along a longitudinal axis, a plurality of beaded ridges extending along one attachment surface of the molding strip, and a plurality of fluted channels extending along the opposed attachment surface of the molding strip. The molding cap has a surface including at least one of complementary fluted channels and beaded ridges for respectively engaging the beaded ridges and fluted channels of the molding strip.

Abstract: A combined molding cap and molding strip wherein a molding strip having opposed attachment surfaces extends along the longitudinal axis thereof; a plurality of beaded ridges extends along one attachment surface of the molding strip and a plurality of fluted channels extends along the opposed attachment surface of the molding strip; and at least one molding cap having a surface including at least one of complementary fluted channels and beaded ridges for respectively engaging the beaded ridges and fluted channels of the molding strip so that the at least one molding cap is in closely abutting relationship with the molding strip at a desired location along the longitudinal axis.