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The first expanded polystyrene ICF Wall forms were developed in the late 1960s with the expiration of the original patent and the advent of modern foam plastics by BASF. [citation needed] Canadian contractor Werner Gregori filed the first patent for a foam concrete form in 1966 with a block "measuring 16 inches high by 48 inches long with a tongue-and-groove interlock, metal ties, and a waffle ...
Tongue Larssen - Tongue Larssens are up to 34 meters long and 80 centimeters wide. They have locks, which allow people to connect one profile to another vertically to create a sealed metal diaphragm wall. Transverse profiles can be in the shape of letters: S, Z, L or Ω where the trough can be of varying depth. [citation needed]
Tongue and groove joints allow two flat pieces to be joined strongly together to make a single flat surface. Before plywood became common, tongue and groove boards were also used for sheathing buildings and to construct concrete formwork. A strong joint, the tongue and groove joint is widely used for re-entrant angles
39 in (990 mm) wainscoting using 3 in (76 mm) tongue and groove pine boards. Panelling (or paneling in the United States) is a millwork wall covering constructed from rigid or semi-rigid components. [1] These are traditionally interlocking wood, but could be plastic or other materials.
the tenon tongue. The tenon, formed on the end of a member generally referred to as a rail, fits into a square or rectangular hole cut into the other, corresponding member. The tenon is cut to fit the mortise hole exactly. It usually has shoulders that seat when the joint fully enters the mortise hole.
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Vertical corner post also known as post-and-plank: Typically larger (e.g., 8" x 8") than the wall logs (e.g., 6" x 6"). The wall logs would be "toe nailed" into the corner post. Mortise and Tenon Joinery: the tenon (tongue) of one log connects to the mortise (hole) of another forming a 90-degree angle to secure the joint.