What Is Form Traveler In Construction? A form traveller is a type of travelling formwork system used in bridge construction. It enables the repeated construction of structural elements and is typically used for free cantilever construction of post-tensioned box girder and cable-stayed concrete bridges. Form travellers are supported by the part of the structure already […]
What Is Extension Of Time Claims In Construction? An Extension of Time (EOT) claims in construction is a request for a change in the scheduled completion date due to a delay that is not the contractor’s fault. The delay could be caused by natural events, owner-caused delays, or other factors outside of the contractor’s control. […]
What Does Phenolic Insulation Mean In Construction? Phenolic insulation is a type of rigid foam insulation used in construction. It is manufactured by combining high solids and phenolic resin with a surface-acting agent. Phenolic insulation has a high closed cell content and fine cell structure, making it lightweight, easy to transport and handle, and resistant […]
What Are Thatched Roofs Made Of? Thatched roofs are traditionally made of dried grasses, straw, and other plant materials. Common thatching materials include water reed (often known as Norfolk Reed), longstraw, combed wheat reed, sedge (a grass-like plant which grows in wetland areas), straw, stems, and palm branches. Synthetic thatched roofing is made out of […]
What Is DPC On Building? A damp-proof course (DPC) is a barrier through the structure of a building designed to prevent moisture from rising by capillary action, such as through a phenomenon known as rising damp. This barrier is typically made of durable, impermeable materials such as slate, felt paper, metal, plastic, or specially engineered […]
What Is A Rainscreen Cladding System? A rainscreen cladding system is a form of double-wall construction that uses an outer layer to keep out the rain and an inner layer to provide thermal insulation, prevent excessive air leakage and carry wind loading. The system was invented by Canadian architect G.K. Garden in 1963 and consists […]
What Is A Steel Portal Frame Building? A steel portal frame building is a type of low-rise structure consisting of columns and horizontal or pitched rafters connected by moment-resisting connections. The primary steelwork consists of columns and rafters, which form the portal frames, and longitudinal bracing. Steel sections used in portal frame structures are usually […]
What Does Lateral Drain Mean In Construction? A lateral drain is a section of pipe that is positioned outside the boundary of a building. It may be located under a public pavement or road and either connects to a neighbour’s drain or connects directly to a public sewer. A lateral drain carries wastewater and excrement […]
What Does A Service Riser Mean In Construction? A service riser in construction is a vertical pipe, culvert, shaft, or other structure that rises up in a vertical direction. Service risers are used to supply water within buildings for fire-fighting purposes and can be either dry or wet. Dry risers do not contain water when […]
What Does Lathing Mean In Construction? Lathing is a building process used to finish mainly interior dividing walls and ceilings. It involves the use of narrow strips of wood (laths) which are nailed horizontally across the wall studs or ceiling joists. These laths provide a base for plaster, which is then applied using a wooden […]