What is trussed rafter roof?
Trussed rafter roofs, also known as roof trusses, provide a structural framework to support the roof fabric, ceilings or floors of buildings in both domestic and commercial structures. There are many different types of roof trusses.
What is the usual spacing for trussed rafters?
The number of trusses required for a roof depends completely on the design. However, typical roof truss spacing means that they are usually 400mm (16 inches) or 600mm (24 inches) from centre – this means from the centre of one truss to the centre or the next truss.
What are the advantages of trussed rafters?
They’re energy efficient and environmentally friendly. Unlike metal or concrete, trussed rafters are energy efficient and environmentally friendly. This renewable, low-tech and energy efficient solution means that even the eco-friendliest client will be delighted with your choice.
Which is better trusses or rafters?
At the end of the day, it all comes down to your own needs. If you plan on increasing the amount of room or storage space in your attic, rafters are the right choice. If you’re looking to keep your attic the way it is and want stronger support and quicker roof construction, we recommend installing roof trusses.
How far can roof trusses span without support?
A roof truss can span up to 80′ without support, however in any home that distance would be impractical and incredibly costly. Trusses are designed to span spaces without interior supports, and spans of up to 40′ are the most common in today’s homes.
What are the disadvantages of roof trusses?
What are the cons of timber roof trusses?
- Timber can warp. In certain conditions, timber can change shape and slowly contribute to building damage.
- Timber invites pests. In certain localities, pests such as termites can present a risk to timber structures.
Why are trussed roofs good?
Primarily, a roof truss has immense strength due to its structure which disperses weight evenly. The interior walls are not load-bearing but all weight is transmitted to the exterior walls. This creates and safer and sturdier construction as weight is balanced out on the house.