We build rafters for garage: overview of all popular types of structures

The process of building garage rafters entails selecting the ideal kind of structure based on your requirements and tastes. Any roof needs rafters because they give the roof covering structure and support. When building a garage, rafter structures come in a variety of popular types, each with pros and cons of their own.

The common rafter, which is renowned for its efficiency and simplicity, is one of the most traditional types. Straight beams known as "common rafters" extend from the top of the walls to the ridge board or beam at the roof’s peak. They provide strong support for the roof covering and make up the fundamental structure of the roof. They are usually placed equally apart.

The attic truss, which combines the advantages of rafters with extra attic space, is another well-liked option. Utilizable attic space is created above the primary garage space by attic trusses, which feature a horizontal beam or floor joist near the bottom of the truss. For people who want to make the most of their garage’s living or storage space, this design is beneficial.

Scissor trusses are a good option if you want a more airy and open garage interior. Because of their distinctive design, these trusses have bottom chords that slope upward from the wall to the truss centerline. This gives the garage the appearance of having a vaulted ceiling and more vertical space. Because of their attractive appearance and sense of openness, scissor trusses are widely used.

Pole barn rafters provide a workable option for individuals who are concerned with simplicity and cost-effectiveness. Instead of using walls for support, pole barns use widely spaced poles or columns, with the roof rafters usually spanning between them. For larger garages and agricultural buildings, this construction method is popular because it is simple and economical.

Where are the pitfalls?

Let’s first identify the characteristics of the garage roof rafter system:

  • The roof of such a household is usually built simple, because there are no special requirements for it. Of course there are exceptions – but rarely.
  • Often, due to the simplicity and minimum requirements for the quality of the roof, the owners of the garages save so much that in the end, heavy rafter systems collapse directly into their cars. And the final repair (if it is generally possible) costs more than the initial construction of the roof.
  • Garages, like non -residential premises, are rarely heated, and therefore wooden elements in the rafter system need to be protected against decay.
  • The minimum attic or its absence: during the construction of the garage, few people think about a full -fledged internal ventilation.
  • No elaborate and intention.
  • Presence or absence of ceiling. Indeed, why?

And so, based on these characteristics, come to your own conclusion as follows:

  1. The roof of the garage must be built strong and reliable.
  2. It is better to give preference to a simple structure in which it will easily replace the rotten part.
  3. Wooden rafters for the garage are necessarily treated with antiseptics and water -repellent compounds.

As such, it is our responsibility to uphold three key values: dependability, economy, and simplicity.

Let’s choose the roof’s view now:

  • single -sided or gable;
  • with corrugated board or soft roof;
  • simple or with a continuation for an additional canopy.

In "All about the Roof," we examine several common structural types as we delve into the fundamentals of garage rafter construction. Knowing the various rafter designs is essential whether you’re building a new garage or remodeling an old one. Every style of truss, from the classic triangular to the cutting-edge scissor trusses and affordable shed roofs, has special benefits in terms of affordability, interior space optimization, and structural integrity. Our thorough overview will assist you in selecting the best rafter design to fulfill the unique requirements of your garage, guaranteeing both practicality and visual appeal."

Which rafters are better: wooden or metal?

Both metal and wood rafters work well for building the garage roof. Simply put, each material has benefits and drawbacks that vary depending on what the needs of the room are.

Wooden rafters: classic quality

The most basic illustration of how a roof would be built using these rafters:

Therefore, there are just a few conditions that must be met for the roof of your garage to remain off of your car:

  • Give preference to pine and spruce from tree species – this is better for the construction of the roof. They have sufficient flexibility and strength, easy to process and cost inexpensively.
  • Minimum humidity: the less, the better so that then it does not twist the entire roof. If the wooden structure of the roof is closed with drywall slabs, then the humidity should not exceed 20% (so as not to suffocate), but there is some part of the elements on the street, then 23%. Remember that the just cut wood has a moisture content of 30%, and this lowers its qualities by 60% lower than that of dried rafters to 20%.
  • Minimum flaws: take that wood where smaller cracks and knots.
  • Good processing: be sure to soak the finished rafters of fire and bio-bio.
  • High variety. Only the first variety is suitable for the construction of the roof, although for a small garage you can, of course, make an exception and buy the 2nd or 3rd variety. But then be sure to process the rafters even more thoroughly.
  • Prefer glue with a whole beam – it is more durable and is less deformed. Of course, it is more expensive. Then start from how expensive your car is, which will stand in the garage – is it cost? Indeed, in terms of its qualities, glued 3rd varieties are the same as integral, but 1st.

Better finished wood, made especially for rafters, should be ordered if you have the chance and the time. It is further sterilized and dried at high temperatures in enclosed chambers within the factory. Consequently, neither mold nor fungi nor insects—which are typically caused by the rafters of low-fluid garages—will ever begin to grow on such a roof.

Use specialized impregnations on such wood through impregnation. The bars are really just submerged in the chosen mixture. You can do the same thing at home; just construct a tiny, temporary bath for potential roof components.

Make sure to check the quality of the impregnation on finished garage rafters by cutting a board in half and measuring the depth to which the impregnation penetrated the wood. A 7 by 15 cm section is the traditional size for the garage rafter legs.

Metal rafters: high practicality

These rafters are definitely far more robust and long-lasting than wooden ones. Such rafters are more resilient in environments with constant temperature and moisture variations, which are frequently found in an average garage. Your great-grandchildren will place their futuristic cars on a magnetic pillow in your garage if you simply paint them with anti-corrosion paint.

However, there is one thing to keep in mind that is crucial: metal products are heavy. Consequently, light frame walls are not an option here; instead, you must construct a solid box. Additionally, you must precisely calculate the loads, design, and maximum pressure points.

Ideally, if you can construct the entire garage as a sturdy, sealed iron box at first:

However, you can also combine the advantageous aspects of metal and wood. For instance, an arbolite roof with a reinforced screed as the top layer and wooden rafters and corrugated board installed on the sheeps is sufficiently robust and long-lasting.

As they say, such a roof for centuries.

How to build a single -shoe roof?

A single-sided roof is incredibly simple to construct. Making a slope is the primary task in order to prevent snow and rainwater from flowing or running off.

Furthermore, dependable waterproofing must be guaranteed. The car and the structure itself are not helped by the garage’s ongoing dampness. It’s likely that you’ve heard this unpleasant smell in your friends’ garages on multiple occasions. So be aware that dampness has a fungal odor rather than a smell of its own. Additionally, if you still enjoy working on your car and spending a lot of time in the garage, consider your health beforehand.

A garage’s single-sided roof can be constructed in accordance with two projects:

  • Install two Mauerlates on the walls and connect them with parallel bars. Very simple and inconspicuous.
  • Prepare several identical rectangular triangles with a transverse mount. For this option, you do not have to raise one of the supporting walls of the garage, which also simplifies all the work in its own way.

You can easily calculate the angle of a roof like this: the larger the angle, the more protection the roof has from heavy snowfall, but it also means that more consumables are needed. Less wood is consumed and there is more wind resistance on more gentle slopes with smaller angles where snow accumulates more. Naturally, this parameter varies depending on the type of roofing material you have selected. While the profile and roofing material can be installed nearly horizontally, nearly all other coatings demand a minimum 45-degree slope.

This is the most straightforward design for a garage with a single-sided roof:

Additionally, the roof can be made nearly flat using corrugated board:

Select a incline? Content? Then go ahead! To build a garage roof, you will need to gather the following materials in total:

  • Boards 35-40 mm.
  • Bars 50×50 for crate.
  • Wind boards 25-30 mm for ends.
  • Waterproofing film.
  • Roofing material.
  • An ax, a hammer, screws, a sharp knife, a screwdriver, a chainsaw and a construction stapler.

Thus, everything becomes clear:

  • Put the bars on both supporting walls – Mauerlatians.
  • Be sure to check their horizontal.
  • Fasten the Mauerlates using long nails (200 mm) or metal brackets.
  • With the help of metal corners or screws, fix the rafters on the Mauerlates now.

However, if your garage ends up being large and heavy, make sure to pre-concrete steel hairpins with twisted wires or threads. This is the extra mount that is required.

How to build a gable roof?

A gable roof is more intricate for a garage. If there are regular snowfalls in your area, it makes perfect sense because even a single, flat piece of snow can be compressed to the ground. However, you can manage it and this building, so don’t worry. Making and installing rafters on the roof is the most crucial step.

The simplest design for a garage gable roof is to create closed triangles out of bars, reinforce them with a single transverse crossbar, and call it done! At the very least, minimal effort and wood needed.

Here are some thorough examples:

We refer to these closed triangle farms as hanging rafters. Furthermore, lattice farms occasionally need to be constructed instead of simple hanging rafters:

Naturally, the rafter farm will transfer less weight to the garage walls the more components it has.

As a result, the lowest rafters in the simplest hanging rafter design are supported by a horizontal timber, and two rafters that converge in the skate and are fed in half-ceremony. Because of Rigel, the rafters don’t bend:

You already need to include a grandmother in the rafter farm design and fix it in the skate and puff if the width of the span of your garage is greater than seven to nine meters. Cramping and other metal elements are also related to all of these elements. However, when overlapping spans up to 10 meters, complex farms with grandmothers and struts are already necessary. This is a real barn now, not just a garage!

Thus, if you value practicality, consider the following "golden" option for your garage’s roof:

Let’s now discuss layered rafters, another type of rafters. In homes with internal supporting walls, nagel rafters are constructed. Thus, the spacer stress is transmitted by the layered rafters, which rest on the lower ends of the Mauerlat:

Furthermore, these are heavy loads, which is why the walls ought to be very large. The best option is to install thick studs or an anchor bolt system in the upper portion of the walls to create a reinforced belt. Strictly vertical in orientation, they securely anchor the beam to themselves. Step of fastening: 1.5 meters minimum following 1.5 meters.

Regarding the average garage, internal walls—which indicate that it is a garage for two cars—and even stronger walls are incredibly uncommon. As a result, the only option in this situation is to discuss hanging rafters, which are actually less common because they take more time to complete. Specifically, what? It is necessary to create prefabricated rafter farms where precise and superior nodes will be fabricated.

Complete triangles will emerge, meaning that horizontal loads will no longer be transferred to the walls. For this reason, buildings with light walls and a serene interior can have such a roof. Furthermore, with large spans, hanging rafters exhibit remarkable behavior.

How to build a roof with a ceiling and attic space?

Now consider this carefully: are you really going to use the garage roof? Perhaps it makes sense to outfit the attic if the walls are already sturdy and dependable? As an illustration, under:

  • own workshop;
  • a warehouse of necessary and unnecessary things;
  • summer room for guests;
  • billiard;
  • mini-tile;
  • Real Sauna.

Why not? In reality, a lot of people act in this way, but overseas they strive to make the most of each horizontal and vertical meter:

Therefore, we suggest that you build attic rafters if your garage’s foundation and walls were initially constructed solidly and were intended to support a sizable load:

Next, consider a sturdy floor on which you can walk without risk and even place furniture that isn’t too sturdy:

And from the side of the road, arrange a roofing pie in the following order: internal casing, vapor barrier, thermal insulation, waterproofing, and roofing. This room over the garage will then be yours to use from early spring until late autumn, and it will never get too hot in the summer.

There are a few common building types to take into consideration when building rafters for your garage. Various types offer different benefits and things to think about based on things like purpose, budget, and weather.

For many builders, the classic triangular or "common" rafter design is still a reliable option. It is a classic choice due to its ease of construction and consistency in offering structural support. For garages where a simple, economical solution is desired, this design is perfect.

The "attic truss" style rafter presents an appealing choice for individuals looking for greater interior space and adaptability. With this design, the attic space above the garage is usable because a flat ceiling is integrated into the truss. It’s ideal for homeowners who want to maximize storage or who might eventually want to turn the area into a living area.

The "raised-heel" or energy truss design is a viable option if environmental sustainability and energy efficiency are top concerns. Because this kind of rafter enables thicker insulation at the eaves, heat loss can be reduced and overall energy efficiency can be improved. Even though installation might be a little more complicated, there may be substantial long-term comfort and energy savings advantages.

Last but not least, the "gable" roof design is well-liked for its timeless appearance and efficient water drainage. This design’s steep pitch allows for effective runoff, making it ideal for areas that see a lot of rain or snowfall. It’s a long-lasting option that improves your garage’s appearance and functionality.

Weighing these elements against your unique requirements and tastes is necessary to select the best rafter design for your garage. There is a rafter type that is ideal for your project, regardless of your priorities: weather resilience, energy efficiency, simplicity, or space optimization.

Video on the topic

Installation of rafters alone. Frame garage 6×8. Part 1.

We build a garage! / Rafter system / gable roof / Mauerlat / ceiling beams (June 2024)

😮🤔 The correct design of the overhangs of the roof!

Load rafters

How to make a gable roof correctly / basic roof assembly rules / how to make a roof yourself /

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

Exterior designer, author of books about roofing materials. I will help you make your roof not only reliable, but also beautiful.

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