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The stack effect or chimney effect is the movement of air into and out of buildings through unsealed openings, chimneys, flue-gas stacks, or other purposefully designed openings or containers, resulting from air buoyancy. Buoyancy occurs due to a difference in indoor-to-outdoor air density resulting from temperature and moisture differences ...
A chimney pot is placed on top of the chimney to expand the length of the chimney inexpensively, and to improve the chimney's draft. A chimney with more than one pot on it indicates that multiple fireplaces on different floors share the chimney. A cowl is placed on top of the chimney to prevent birds and other animals from nesting in the ...
In light-frame construction, a trimmer is a timber or metal beam (joist) used to create an opening around a stairwell, skylight, chimney, and the like. Trimmers are installed parallel to the primary floor or ceiling joists and support headers, which run perpendicular to the primary joists.
Closing all interior doors helps disperse the pressure throughout your home, reducing the effect that all of that force can have on your roof — basically the one thing that separates you from ...
Section view through a house roof drawing showing names for parts of the structure. [clarification needed] (UK and Australia). Ctrs. means centers, a typical line to which carpenters layout framing. Domestic roof construction is the framing and roof covering which is found on most detached houses in cold and temperate climates. [1]
Design loads – Fire wall must withstand a minimum 5 lb/sq ft (24 kg/m 2), and additional seismic loads. [7] Substation transformer firewalls are typically free-standing modular walls custom designed and engineered to meet application needs. Building fire walls typically extend through the roof and
A revolving door typically consists of three or four doors that hang on a center shaft and rotate around a vertical axis within a round enclosure. Rib vault The intersection of two or three barrel vaults. Ridge board A structural member that runs the length of the ridge (high point) on a sloped roof to which the upper ends of rafters are attached.
In some cases, a cricket can be used to transition from one roof area to another. On low-slope and flat roofs with parapet walls, crickets are commonly used to divert water to the drainage, against or perpendicular to the main roof slope. The pitch of a cricket is sometimes the same as the rest of the roof, but not always. For Steep-slope roofs ...