Wcd1 details for conventional wood frame construction. Framing methods, exterior wall construction balloon framing eastern a twostory structure is the maximum that can be built easily using balloon framing floor framing at the midlevel is supported by a ledger set into the studs spaced at 12, 16, or 24 305, 406, or 610 mm on center o. Heavy framing consists of framing members at least 6 inches in dimension timber construction. However, before concentrating on roof framing, a brief discussion of diaphragms and shear walls is presented because they are two of the key elements in the framing of loadbearing wall systems in most residential and light commercial construction. Best performance of wood frame buildings is obtained when the moisture content of framing lumber at the time the building is enclosed with sheathing and interior finish, is as close as possible to the condition it will reach in service. Light frames of wood are constructed around studs that run continuously from top to bottom of a building. Platform framing is a more modern approach in construction. Before the invention of the balloon frame construction with wood was slow and required skilled labor based on mortised and tenoned joints. Balloon framing is one of the earlier wood construction methods. Its not always easy to see whats hiding behind the walls of your house and old house owners from the balloon frame period of 18801930 have a right to be concerned since there is a distinct possibility they have a balloon frame house. Post and beam construction in many ways was the predecessor of balloon framing. Pdf the invention of the balloon frame, how it affected. Balloon framing an older style of framing in which the studs in the bearing walls are run uninterrupted from the sole plate up to the roof plate. Balloon frame construction framing construction building.
In balloonframe construction, exterior wall studs con tinue through the first and second stories. It is customary for secondfloor joists to rest on a. When balloon framing first appeared, theres certainly plenty of evidence that there was disdain for this new type of construction. Building framing systems and best practices building. The invention of the balloon frame, how it affected architecture in. Grading rules which conform with american softwood lumber standard, ps 20, provide for framing lumber. International residential code 2009 form revised 510. Its the building type all firefighters should dread as fire will spread fast and unhampered through the walls and floors. The roof is a truss structure that consists of horizontal ceiling joists and sloping rafters. Balloon framing might be an outdated method of construction, but thought i would make a video about it for those who are going to be remodeling buildings that used this construction. The balloonframe was a relatively newfangled way of. Id like to point out that there certainly are many, many balloon framed structures, between 75 and 175 years old, that havent floated away. The part of a cshape or track that is perpendicular to the web. Heavy framing heavy frame buildings are more permanent, and are normally used for warehouses and shops.