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Nightingale floors (鴬張り or 鶯張り, uguisubari) listen ⓘ are floors that make a squeaking sound when walked upon. These floors were used in the hallways of some temples and palaces, the most famous example being Nijō Castle, in Kyoto, Japan. Dry boards naturally creak under pressure, but these floors were built in a way that the ...
Further research into crackling noise was done in the late 1940s by Charles Francis Richter and Beno Gutenberg who examined earthquakes analytically. Before the invention of the well-known Richter scale, the Mercalli intensity scale was used; this is a subjective measurement of how damaging an earthquake was to property, i.e. II would be small vibrations and objects moving, while XII would be ...
A semi-traditional floor would have wood battens laid on pads made of neoprene, which is more durable than rubber. Pads are typically laid 40–50 cm (16–20 in) apart and are 1–2.5 cm (0.39–0.98 in) thick. Then more wood battens are put on top at right angles, halfway between the pads.
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A tapping machine is a device used to test the impact sound insulation of floors, for measurements of impact noise (noise of footsteps) in the field of building acoustics. The standard tapping machine [1] has five hammers placed in a line. Each hammer is lifted and dropped in turn, creating 10 impacts per second on the floor.
Wood flooring is a popular feature in many houses. Engineered wood flooring consists of two or more layers of wood adhered together to form a plank. Typically, engineered wood flooring uses a thin layer of a more expensive wood bonded to a core constructed from cheaper wood. The increased stability of engineered wood is achieved by running each ...
Rough turning is an inexact science: turning wood too thick will lead to splits, and turning wood too thin will lead to distortion that cannot be removed because not enough thickness is left. Once dry, it is mounted on the lathe a second time and turned to its final form. Rough turning is typically used on most functional work and some art pieces.
The decayed wood takes on a dark or browner crumbly appearance, with cubical like cracking or checking, that becomes brittle and can eventually crush the wood into powder. Chemically, wood attacked by dry rot fungi is decayed by the same process as other brown rot fungi.