A different approach to rafter layout pdf download






















1. Design is a useful approach for gaining background information on a particular topic. 2. Exploratory research is flexible and can address research questions of all types (what, why, how). 3. Provides an opportunity to define new terms and clarify existing concepts. 4. Valley rafters extend from the plates to the ridgeboard along the lines where two roofs intersect. Jack rafters never extend the Figure —Rafter layout. full distance from plate to ridgeboard. Jack rafters are subdivided into the hip, valley, and cripple jacks. In a hip jack, the lower ends rest on the plate and the upper ends against the. the rafters from spreading when under load; this allows this type of roof structure to be used for greater spans than the couple roof. This design also gives a greater ceiling height if required. Close couple roof This roof incorporates a main tie which is secured to the .


- Rafter Design General The rafters will be spaced at approx. ' centre to centre and will be placed 8} inches to left of the panel points of the trussed purlin. The rafters *ill be composed of channels and the design will be restricted to the extent that no channel less than 8" in depth will be used. See Fig. #3, which shows the spacing of. Nunan() clearly states how very different this "process" approach is from the traditional product-oriented approach. Whereas the product approach focuses on writing tasks in which the learner imitates, copies and transforms teacher supplied models, the process approach focuses on the steps involved in creating a piece of work. Valley rafters extend from the plates to the ridgeboard along the lines where two roofs intersect. Jack rafters never extend the Figure —Rafter layout. full distance from plate to ridgeboard. Jack rafters are subdivided into the hip, valley, and cripple jacks. In a hip jack, the lower ends rest on the plate and the upper ends against the.


Roof framing with hip, valley, and jack rafters is more complex than framing entirely with common rafters. Choose a content vocabulary or academic vocabulary word that is new to you. When you fi nd it in the text, write down the defi nition. hip rafter valley rafter jack rafter seat cut backing the hip dropping the hip addition dormer. ing out rafter as shown in Fig. 1 (lets assume 5" rise), start at top end of rafter. Lay s:i:uare on face of rafter, with "T" bar of s:i:uare down over the edge of rafter. Pivot S1Uare to where number 5 on common scale lines up with same edge of rafter as pivot point. Keep pivot point tight against edge of rafter. Start. 7 The procedure for basic roof construction is as follows (See figure 4.) 1. Obtain Rafter Run: Measure or calculate the horizontal distance the rafter will span, starting at the outside of the wall on which it rests and including any.

0コメント

  • 1000 / 1000