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Deck hatch of the Omega, the last square-rigged sailing cargo ship. Originally, trapdoors were sack traps in mills, and allowed the sacks to pass up through the mill while naturally falling back to a closed position. [3] Many buildings with flat roofs have hatches that provide access to the roof.
Access to the underground monument is by ladder to a hatch in the roof. [1] The souterrain has an entrance passage which is 3.5 m (11 ft) long with a drop of around 0.7 m (2 ft 4 in) to the floor of the chamber. The chamber is hexagonal in shape and measures 3.3 m (11 ft), and is 2.5 m (8 ft 2 in) in width.
Also, a building with a complex roof or many piercings between the conditioned area and the attic might control condensation better or more cheaply with an insulated roof and a vapor barrier. [ 5 ] One common code requirement is that the total area of attic vents be equal to or greater than 1/150 of the floor area of the attic, with 50 percent ...
A utility tunnel at a university in Toronto, Canada A mural by Roof & Tunnel Hackers at MIT. Roof and tunnel hacking is the unauthorized exploration of roof and utility tunnel spaces. [1] The term carries a strong collegiate connotation, stemming from its use at MIT and at the U.S. Naval Academy, [citation needed] where the practice has a long ...
Rooftoppers clandestinely access off-limits staircases, roof hatches, ladders, etc., and it incorporates some aspects of bouldering or free solo climbing. It is an offshoot of urban exploring , but is not universally condoned among urban explorers and is considered a stunt due to its illegality and high risk of fatal injuries.
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ONEIDA COUNTY, N.Y. – Days of concentrated lake-effect snow resulted in feet of fresh powder being dumped on several counties in upstate New York.That was enough snow to collapse the roofs of ...
Fixed roof tanks without breather valves will generally be freely vented; [2] thus the emissions from a fixed roof tank can be non-trivial. Gauge hatches, sample wells, float gauges, and roof manholes provide accessibility to these tanks, and also act as potential sources of volatile emissions.
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