Timber is one of the most common materials that is used for making trusses for roof framing today. That's because the material offers adequate stability and is able to hold roofing shingles and other materials in place for decades without showing any signs of structural defects. However, before designing timber trusses for your construction, you need to pay attention to the geographical factors in your area. Certain issues will determine the stability of the roof; therefore, you need to put them into account when designing the frame to ensure that you don't experience problems in the future. This article will look into some of the geographical factors that you should consider when making trusses for your roof frame.
Amount of snow during winter
During winter, snow accumulates on the roof, and it can affect the structure's stability if the frame wasn't designed to handle the extra weight. Therefore, before designing your frame, assess your area to determine the amount of snow received. If it is a lot, you need to account for the weight it exerts on your roof when designing the frame. In this case, certain modifications should be made to the roof to ensure that it remains stable during the winter. For example, the roof framing should be built with a certain slope so that snow can slide down the roof easily. Also, you should properly insulate the roofing structure so that the roof's surface may remain warm and deter snow buildup.
The strength of the wind in the area
Another factor you should consider is the strength of the wind in your area. Ideally, if the wind is very strong, it can easily lift off the roof and blow out the walls if the frame isn't designed with this factor in mind. So, if your area has very strong winds, you should consider an enclosed structure rather than a partially enclosed one. Similarly, if you are constructing a tall building, it may be exposed to more intense winds as compared to a shorter building. For this reason, the truss should be designed to handle the maximum wind load to avoid structural problems.
Local building codes
Besides weather factors, local building codes may also influence the kind of truss design that you choose. For example, some regulations restrict the cutting of truss members without the approval of a design professional. Also, you may be required to comply with specific regulations when taking measurements of the trusses. Failure to do this will cause your permit application to be denied.
Various location factors come into play when designing roof trusses. Work with an experienced and licensed professional so that they can help you design a structure that withstands the elements and adheres to the local codes.