Factor Roof Design

There are certain factors which need in depth consideration.

Factor roof design.

In order to determine the wind loads acting on a roof the architect designer needs to know the following about a building location. The balanced snow load is applied everywhere where the roof structure is located. Research green roof manufacturers. 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. These factors take into consideration how likely the load is to happen and how often. The design of your roof will determine the roofing system that you use.

The importance factor is based upon the risk category and the associated life safety hazard or essential nature of the structure. This will give you the rise over run or pitch. Per api 650 appendix e for seismic loading. The resistance factor is a function of how comfortable the design community is with the type of limit ie.

This is only possible if the roof has a unique design. After you obtain the roof slope factor from those sections in asce 7 10 the balanced design snow load for the sloped roof can easily be calculated using equation 7 4 1. For example if you measure 4 inches the pitch of your roof is 4 12. Below are five of the most significant factors.

There are a number of factors that determine the design wind uplift loads for the field perimeter and corners of a roof. Height length and width. Since a mansard roof has such a unique design choosing a unique material could make the roof that much more special. The dutch gable hip roof is a hybrid of a gable and hip type of roof.

This imaginary worse case load moment or stress is compared to a limit value that has been modified by a resistance factor. Building code that is in effect at the building s location. See 1 4 11 4 1 and 11 7. 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.

Usually mosses succulents bulbs and tubers grasses herbs herbaceous and woody plants are recommend for green roofs. 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. Fixed cone roof with internal floating roof. 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.