When you are building a house, outbuilding, or shed that will use a truss roof, you need trusses that are engineered to work for your situation and support the load of the roof and anything on it. In some parts of the country, that means building with snow and ice in mind, and the trusses may need to be different than in an area that does not have snow.
Engineered Roof Trusses
A structural engineer or architect typically designs building trusses to meet the needs of your building. However, a properly engineered truss roof is often strong enough to hold up a load greater than the weight of just the roofing material. The trusses may need to span a long distance without the assistance of supporting beams, walls, or posts in the center of the span. Getting the compound angles on the trusses correct is the only way they will be strong enough to handle this situation.
If you are working with an architect to design a building, they can also create the truss roof and supporting building trusses for you as part of the design. Since the architect is laying out the details of the structure, they are often the ones with the most understanding of the weight and support requirements for the roof.
In stormy areas, the trusses may need additional brackets to tie them into the building, but the engineer will make sure this extra support is part of the design so the manufacturer can create the trusses correctly.
Small Building Trusses
When building a small shed or shop on your property, you may want a building with an open floor plan that allows you more space for work or storage. Using a truss roof will enable you to support the roof's weight on the outer walls without the need for any support inside.
If you are building a structure like this on your own, you can often go to your local lumber yard and ask about custom trusses for your project. Most lumber suppliers either have an engineer who can help you or send the specs for your building to the truss manufacturer they work with, and their engineer can design your trusses in-house.
Using a service like this to purchase building trusses for a shed, shop, or garage is very common, and the price is often very reasonable. There are truss companies that will design your trusses for a house, but it is critical to check to make sure the trusses are certified so that they will pass the local building code without any problem. Once the design is completed, the manufacturer will make the trusses and ship them to your lumber supplier, who will then bring them to your property. Contact a company like Campbell Truss Company Inc for more information.