Factor Roof Design

For example if you measure 4 inches the pitch of your roof is 4 12.

Factor roof design. Per api 650 appendix e for seismic loading. Simply locate a roof rafter board place the end of the level against the bottom edge and measure from the 12 inch mark vertically to the bottom edge of the rafter. These systems are presented in the guide in relation to habitat water management energy needs and other factors affecting a project s design. Below are five of the most significant factors.

See 1 4 11 4 1 and 11 7. The design of your roof will determine the roofing system that you use. Non structural components in sdc a are exempt from seismic design requirements. There are a number of factors that determine the design wind uplift loads for the field perimeter and corners of a roof.

Since a mansard roof has such a unique design choosing a unique material could make the roof that much more special. Usually mosses succulents bulbs and tubers grasses herbs herbaceous and woody plants are recommend for green roofs. Research green roof manufacturers. The balanced snow load is applied everywhere where the roof structure is located.

The importance factor is based upon the risk category and the associated life safety hazard or essential nature of the structure. In order to determine the wind loads acting on a roof the architect designer needs to know the following about a building location. The resistance factor is a function of how comfortable the design community is with the type of limit ie. Using metal such as copper or zinc for the steep portion of the roof can be more expensive up front but will require much less maintenance down the road making it a good long term choice.

Building code that is in effect at the building s location. Zone coefficient z importance factor diameter of tank d i height of liquid content design h shell height hs design specific gravity g tb thickness of bottom pl under shell. Fixed cone roof with internal floating roof. This will give you the rise over run or pitch.

This is only possible if the roof has a unique design. The dutch gable hip roof is a hybrid of a gable and hip type of roof. Height length and width. A full or partial gable can be found at the end of the ridge in the roof allowing for a greater amount of internal roof space.

Both table 1 5 1 and ibc table 1604 5 should be reviewed. This style also improves the look of the roof providing a more unique and interesting design than the very common simple hip roof. This imaginary worse case load moment or stress is compared to a limit value that has been modified by a resistance factor. The roof design everyone wishes to live in an aesthetically pleasing house.