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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 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
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]
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The concrete and steel frame structure was complete in 2002 and cost approximately $27,500,000. Donald Bren Hall was the first laboratory to receive LEED Platinum accreditation, the highest rating achievable through the US Green Building Council's national rating system, with the following building design features:
Timber floorboards are thin horizontal structural members laid horizontally on the floor joist and joined to one another by the traditional tongue and groove method. The timber floor joists and floorboards used to be exposed and constitute the ceiling of the room below. The floorboards are now covered with concrete for fire safety reasons.
tongue and groove tread The part of a stair that is stepped on. treen Made entirely of wood, usually referring to small objects like bowls or utensils. true Something which is accurately placed, shaped, or sized. To "true up" two pieces of wood is to make them align. twist A longitudinal twisting of wood due to uneven seasoning or grain. See ...
Swedish Cope logs: round inside and out, with a half-moon-shaped groove on the bottom; Nearly every profiled log on the market features an integral tongue and groove milled into the top and bottom of the log; this aids in stacking and reduces the need for chinking. Wood is not airtight, but caulking or chinking improves energy efficiency.