
4 Key Differences Between Roof Trusses And Joists

Roof trusses are a key part of offering support to roofs in residential and commercial structures. It mainly comprises three elements: the top chord, the bottom chord and the web members. Irrespective of the type of roof truss, each has three basic elements. Another key member used as a roof support is the joist. A joist is different from a roof truss structurally, as it comprises a horizontal member that acts as the main support for the roof. So which is the better choice? In this blog, Tamarack Lumber Inc., a major designer of engineered roof trusses, explores its key differences by exploring 4 factors or criteria.
Comparing Roof Trusses And Joists
1. Span Length
The length of the roof span is a major determinant of the type of support. For a longer span, roof trusses are the obvious choice, but if the span is shorter, a joist can work in some cases.
2. Speed Of Construction
Between the two, a roof truss is categorically faster in terms of installation, as most roof trusses are pre-fabricated. This means that they just have to be installed on-site. Conversely, a joist has to be assembled on-site, increasing the overall construction process and reducing its speed.
3. Precision
In terms of precision, roof trusses emerge as a better choice once again, as they are made in a facility with accurate measurements and processes. Joists, on the other hand, are usually made on-site with conventional means, affecting their accuracy.
4. Roof Design
Lastly, roof trusses are the best choice if the roof design in question is somewhat complex. Joists are better-suited for simpler roof constructions.
Therefore, roof trusses are the better choice between the two, with joists having a slight upper hand only in the case of cost-effectiveness. In all other parameters, a roof truss is superior.
Looking for quality roof trusses that emphasize quality? Tamarack Lumber Inc. is here to help. As one of the biggest designers and manufacturers of roof trusses in Burlington, Ontario, our engineered roof trusses are designed according to the specific structure to ensure easy and quick installation without compromising on quality. Get in touch with us today at 905-335-1115 for more information or to request a quote.