The rafter system of the trickered roof: design features and rules of the structure

The rafter system is an important component of roof design, contributing to both functionality and aesthetics. Specifically, the architectural appeal and structural efficiency of the trussed roof system make it stand out. In contrast to more straightforward roof designs, trussed roofs evenly distribute the weight of the roof across the structure’s walls by using a framework made of connected triangle shapes, or trusses. Larger spans can be achieved with this design without the need for extra support columns inside the building, in addition to stability.

A trussed roof’s distinctive feature is its triangle trusses, which are usually composed of steel or wood. These trusses are made up of horizontal beams that join the rafters at the bottom to form the base of each triangle, and rafters that slope down from the roof’s peak to the eaves. Since triangles are among the most stable geometric shapes and can transfer loads efficiently while resisting deformation under stress, this triangular arrangement has inherent strength.

When designing a trussed roof, a number of factors must be carefully taken into account, such as the building’s architectural style, the load the roof must support (such as wind or snow), and the span of the roof. Using specialized software, engineers and architects determine the truss dimensions and angles based on these variables, guaranteeing that the roof will be both aesthetically pleasing and structurally sound.

A trussed roof system’s adaptability to various roof forms and configurations is one of its benefits. Trusses can be made to match a variety of architectural styles while keeping their structural integrity, whether the roof is gable, hip, or combination. Because of their adaptability, trussed roofs are a common option for both commercial and residential building projects.

The specificity of the device

A trinoster roof has many more details than a gable roof. The primary challenge lies in the fact that the conjunction records three supporting beams: the run, the rafters’ legs, and the beam itself.

Since diagonal rafters are typically used for tricaries, increment may occasionally be required.

What is the rafter system

You must realize that a tricature technology is a cross between a gable and a holly roof. The following set is always utilized in this regard:

  1. Mauerlatian emphasis. This is a bar with sides of at least 100×100 mm. He acts as a support for the legs of rafters. It is placed on the outer side, while fixed on the supporting supports of the construction.
  2. Lezhnoye emphasis. This is a beam with a cross section similar to Mauerlat. It is also a support for rafters, but is placed on internal supporting structures.
  3. The skate run. This is the bar on which the legs of the rafters are placed. He himself rests on the subfoor rack.
  4. Sub -throat stand. Support located vertically, holding the roof ridge. Transfers the bulk to the base.
  5. The legs of the rafters. These are boards whose cross section is half the Mauerlat. Their main purpose is to support the trapezoidal roof shape.
  6. Midnights. Similarly support the roof slope. Unlike rafters, are located vertically, therefore their length decreases, as it approaches the edge of the roof. Fixed directly to the diagonal rafter.
  7. Diagonal rafters. Diverge from the skate in two directions, forming a slope. Usually much longer than ordinary rafters.
  8. Straws. Inclined supports that support ordinary rafters from sagging.
  9. Sparengel farms. Additional fortification if the struts are too great. Farms help to avoid further sagging.

Anyone working on roofing or building a house needs to understand the trussed roof’s rafter system. This article breaks down difficult ideas into useful insights as it examines the key components and design principles of this structure. We explore the interplay of these components to produce a reliable and effective roofing framework, covering everything from the fundamentals of load distribution to the different kinds of trusses that are employed. The intricacies of trussed roof design are easily navigated with the help of this guide, which is beneficial for both homeowners and builders seeking to expand their knowledge.

Varieties of stripsystems

Trickers come in two varieties. The variation in the quantity of extra background.


Installing a hanging roof is necessary if the house does not have any internal supports. The lying is not installed in this instance. These roof types are appropriate for garages, terraces, and home additions.

T.O. The device is weighted down and becomes more complicated due to the usage of multiple additional supports and the lack of stop settings.

Of course, one can question the stability and longevity of a roof like that.

They also need a solid foundation because they are more susceptible to strong winds.


Roofs with an incline put more emphasis on the house’s wall. Their stability is significantly higher because this makes it possible to distribute the load more evenly.

Construction process

So, how can the house extension’s trifle roof be constructed? We’ll look at the inclined structure process below.

Installation of Mauerlat

Typically, an anchor is used for wall installation. Its strength is sufficient to withstand a powerful wind.

If the house is brick, it must first be concreted around the perimeter, adding another layer of reinforcement, and only then, after Mauerlat is installed.

An anchor bolt can be used to fix it directly in wood or logging buildings.

Place the waterproofing layer between the wall and the Mauerlat. An appropriate example would be a doubled bitumen sheet.

Install the lying similarly.

Sub -back stops

The Lejna is where they are placed. Making sure they maintain their perpendicularity is the only challenge. For this, using a laser osseum building is advised.

T.O. The skate beam has to be strengthened using temporary struts before it is installed. Place the skate next to it and secure with a metal corner.

Ordinary rafters

To ensure that they are all the same size in the future, you must first create a rafter pattern. Additionally, it is advised to mark and cut a space beneath the Mauerlat right away. The image displays multiple connecting methods.

Secure them to the top of the skate after installation on Mauerlat.

Large rafters

The hardest part of the installation process, t.To. It must fit precisely. From the skate to the end of the front line Mauerlat, they are sunk.

They are fastened to regular rafters, creating a level incline. Three legs are typically sufficient with a 0.9 m step.


Fixed to rafters that are in line. The stage’s sole challenge is that, according to the plan, you must prepare a drink beneath the Mauerlat.

They can be fastened with screws to metal corners or regular screw nails. To begin with, the first option is better. Planting doesn’t get worse with time.

The pitched roof installation is now complete.

Anyone working on roofing projects needs to understand how the rafter system is designed and constructed in a tricked roof. This system is essential for maintaining structural integrity and distributing the roof’s weight uniformly. Through the use of rafters—a sequence of angled beams—this design effectively directs weight from the roof onto the walls of the building.

The ability of the rafter system to adapt to different architectural preferences and styles is one of its main features. The rafter system’s fundamentals are flexible, regardless of whether the roof is a more intricate hip roof or a conventional gable roof. This adaptability guarantees durability and structural integrity while allowing for creative roof design.

Following certain regulations and guidelines is essential when building a tricked roof with a rafter system. To make sure the roof can withstand outside forces like wind and snow loads, proper rafter spacing and sizing are essential, as well as sufficient bracing and support. For the roof to last and function properly, high-quality materials and precise craftsmanship are also necessary.

In conclusion, a tricked roof’s rafter system blends flexible architecture with useful functionality. It serves as the structural foundation of the roof, offering both support and visual appeal. Roofers and builders can produce roofs that are not only structurally sound but also aesthetically pleasing, improving the overall quality and longevity of any building by comprehending its design elements and following construction regulations.

What do you think, which element is the most important for a reliable and durable roof?
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Alexandra Fedorova

Journalist, author of articles on construction and repair. I will help you understand the complex issues related to the choice and installation of the roof.

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