A truss roof is a type of roof structure that is commonly used in construction for both residential and commercial buildings. Truss roofs are known for their strength, versatility, and affordability, and are a popular choice among architects, builders, and homeowners. If you're unfamiliar, these are the parts of a truss roof and their functions.

Rafter

The rafter is one of the main components of a truss roof. It runs from the peak of the roof to the wall plate and supports the weight of the roof decking and shingles. Rafters are typically made from wood or metal and are designed to be strong and durable, able to withstand the weight of the roof and the elements.

Purlins

Purlins are horizontal structural members that run across the rafters, providing additional support for the roof decking and shingles. Purlins are usually spaced evenly apart and are used to distribute the weight of the roof more evenly across the rafters.

Ridge Board

The ridge board is a horizontal beam that runs along the peak of the roof, connecting the rafters and forming the highest point of the roof. The ridge board provides additional support for the roof structure and helps to hold the roof together.

Joints

Joints are the points where two or more structural members connect. In a truss roof, joints are used to connect the rafters and other structural members, forming a strong and stable structure. Joints are typically made from metal and are designed to be strong and durable, able to withstand the weight of the roof and the elements.

Struts

Struts are diagonal members that run between the ridge board and the wall plate, giving additional support for the roof structure. Struts are used to transfer weight from the roof to the walls of the building, helping to distribute the weight more evenly and reduce the amount of stress on the roof structure.

Wall Plate

The wall plate is a horizontal beam that is attached to the top of the walls of the building. It acts as the foundation for the roof structure and helps to transfer the weight of the roof to the walls. The wall plate is usually made from wood or metal and is designed to be strong and durable, able to withstand the weight of the roof and the elements.

Tie Beams

Tie beams are horizontal beams that run along the bottom of the roof structure, connecting the rafters and providing additional support for the roof. Tie beams are used to help distribute the weight of the roof more evenly, reducing the amount of stress on the roof structure and ensuring that it is stable and secure. 

For more information about building trusses, contact a local company.