Comparing 3 Types Of Roof Truss Design

Among the different types of roof truss designs, the three major varieties include raised heel roof trusses, scissor roof trusses, and parallel chord roof trusses. How do these roof trusses differ from one another? In this blog, Tamarack Lumber Inc., a leading manufacturer and distributor of roof trusses in Burlington, Ontario, explores the features of these trusses in detail.

What Are The Three Main Types Of Roof Trusses?

Raised Heel Roof Trusses

This type of roof truss is the best choice for humid regions as it has the ability to reduce problems caused by condensation. It does so by creating a vapour barrier. This makes this roof truss resistant to humid conditions and helps improve the house’s energy efficiency. Moreover, it also provides a full-depth attic and covers a large span. However, in terms of manufacturing and installation, it can be a bit expensive as it requires extra insulation and soffit siding.

Scissor Roof Trusses

Scissor roof trusses are best for buildings that have a cathedral-like roof. This means that the horizontal beam is not utilized, like in the case of raised heel roof trusses. Instead, in this roof truss design, the chords are sloped low and inward. However, scissor roof trusses also require more insulation, which can drive up their production cost.

Parallel Chord Roof Trusses

Lastly, parallel chord roof trusses are the simplest in design among the three. However, it is also aesthetically pleasing and quite functional. This has top and bottom chords running parallel to one another, interspersed by diagonal or vertical members. However, in spite of its simple design, it might require thermal bridging to maintain proper energy efficiency.

Conclusion

In summary, each of these three styles of roof truss designs has its own pros and cons. Choosing the right one depends on the preferences of the contractor and the homeowner, as some are more expensive than others.

Looking for quality roof trusses that emphasize quality and durability? Tamarack Lumber Inc. is here to help. We are one of the most trusted designers and manufacturers of engineered roof trusses in Burlington, Ontario. For more information, get in touch with us today at 905-335-1115.

FAQs:

How do raised heel roof trusses offer more energy efficiency?

Raised-heel roof trusses are designed to have extended vertical segments at the eaves, which offer more room for insulation, thereby increasing the room’s energy efficiency.

What are scissor trusses used for?

Scissor roof trusses are used for creating pitched or sloped roofs in residential and commercial spaces.