While trusses are a major roof structure, they come in a number of different configurations. Each type of configuration has its own way of dealing with external forces acting in the node area. The differences in these roof trusses lie in the way they are built and the distinct features they have. If you are looking to use a roof truss in your home building project, it’s better to distinguish each of the common types to decide which one suits best your requirement.
Scissor Roof Truss - this type doesn’t need much support from beams or load bearing walls. It gives more space in the attic since the ceiling is vaulted. However, it provides poor energy efficiency because there’s not enough space for proper insulation. You can usually see a scissor roof truss common in cathedrals.
Raised Heel Roof Truss - unlike scissor type truss, this type is the most efficient among the timber roof trusses because it provides excellent insulation. It also gives you a great system for structural support to your roof but may require some extra materials to achieve the best results. This makes it a bit more expensive than other types of truss. But this little extra cost can be compensated in the long run with the savings you’ll have in lower energy bills.
King Post Truss - typically, king post truss is built using timber but it can be made a combination of wood and steel. It depends on the building structure and the architecture behind it. This roof truss can span as high as 8 meters, making it ideal for different types of homes, particularly the smaller houses.
Queen Post Truss - this roof truss offers the simple design, making it perfect for a variety of building structures. Of all the roof trusses out there, this one is specially designed to offer reliability and versatility which you can use at any time of the year when you’re building a structure.
Aside from these four types, there are still many other roof trusses you can consider. Most of them can be customised and choosing one really boils down to you and your home design. It’s advised that you work with a reputable roof contractor like Tamarack Lumber to help you select the most suitable type for your home.