Crate

Here at "All about the Roof," welcome! Today, we’re going to examine the roof crate, which is a crucial part of roofing systems. This frequently disregarded component is essential to the structural soundness and usability of roofs in a variety of architectural styles and weather conditions.

The framework supporting the entire roof structure is called a roof crate, sometimes referred to as a roof truss or rafter. It is comprised of several triangular-shaped beams, most often constructed of steel or wood. Not only does this triangle design look good, but it also evenly distributes the weight of the roof, guaranteeing stability and longevity.

Every roof crate is made to order to match the precise measurements and requirements of the building it supports. Roof crates guarantee that the roof can withstand the elements, including strong winds and loads of snow, by distributing the load evenly and preventing sagging.

Contemporary roof crates are designed to minimize weight and maximize strength using cutting-edge methods and materials. This innovation makes it possible to create interior designs that are more airy and open as well as more architectural flexibility in the forms and styles of roofs.

Features of a flexible roof

Bitumen tiles are another name for soft roofs. It was introduced into the building materials market for the first time approximately thirty years ago. Bitumen compositions are impregnated into fiberglass or polyester to create this elastic material. It turns out to be a water-resistant, long-lasting, and pliable material that is perfect for roofing finishing.

Ruflex Mint flexible tile

A unique sprinkle of tiny chips made from processing different minerals is always applied to the surface of the flexible tile. Furthermore, the bottom layer features a sticky base that makes it possible to glue the tiles to the roof. When designing roofs with raid angles of at least 11–12 degrees, tiles of this kind are used.

Speaking of which, A large range of hues and sizes are characteristics of flexible tiles. For this reason, even if two materials are strikingly similar, you should not buy them from separate manufacturers.

A unique basis is required for this type of tile due to its softness. She is limited to the shape the crate can take.

Putting in flexible tile

Prices for various types and manufacturers of flexible tiles

Flexible tiles

We explore the useful world of roof crates at "All about the Roof." These inventive constructions are vital parts of contemporary roofing systems, providing not only structural stability but also aesthetic appeal and environmental advantages. Roof crates play a crucial role in optimizing building performance and resilience against varying weather conditions. They do this by improving roof insulation and drainage and by supporting sustainable building practices. Come learn about the useful uses and environmentally beneficial benefits of integrating roof crates into your upcoming roofing project."

What is a crate, its types

The component required for every roof is the crate, which is a framework consisting of boards and bars to which roofing material is fastened. Depending on the type of roofing material being used, there are several options available. For instance, the crate may be sparse, meaning that there will be spaces (a specific step) between its components if the roof is covered in slate, a profiled sheet. The crate should be continuous and gap-free if the roof’s coatings are soft. You will need to use a continuous kind of crate in order to install asphalt tiles.

Setting up an uninterrupted crate

Speaking of which, There can be two layers in the crate at once: a rarefied and continuous layer. As a result, it will be feasible to install thermal insulation, achieve adequate roof ventilation, and enhance the overall quality and dependability of the roof.

The apparatus is a sturdy crate.

The continuous is fastened on top of the mounted sparse, and the sparse crate is always positioned perpendicular to the roof rafters (parallel to the skate). Don’t forget to apply heat and waterproofing materials at the same time.

At-home rol from pliable tiles

A well-made and appropriately positioned crate for a soft roof ought to fulfill the subsequent requirements:

  • be strong;
  • Do not bend under the weight of roofing material;
  • remain stable even under the influence of environmental factors;
  • to be even – do not have bugs, protrusions, irregularities, all sharp elements are removed from it, hats of nails and screws should not protrude above the level of the horizontal surface of the boards;
  • should not have large gaps between individual elements (maximum step – 1 cm).

Cake for flexible tile roofing

Speaking of which, Occasionally, a continuous crate—also known as a "single-layer flooring"—is placed directly on the rafters in place of a rarefied crate. This expedites the building process and is typically reserved for homes that do not require additional waterproofing or insulation.

Materials for the manufacture of crate

There are various materials that can be used to make the soft tile crate. Their primary needs are to be strong, dependable, long-lasting, and even.

Components for an ongoing crate

Plywood most often used to create a crate under soft tiles. This is environmentally friendly material, multi -layer, sufficiently wear -resistant, inexpensive, easy to work and strong. The main thing is to purchase a moisture -resistant option for the roof – ordinary plywood cannot be used here. The most suitable brand is FSF Plyaner. It has the necessary qualities to create a crate – with strength on a fracture, plasticity, low density, slight weight, is not afraid of the effect of the fungus. Such plywood is resistant to moisture, which means it will not rot. In the process of its manufacture, the remains from the processing of coniferous wood are used.

FSF coniferous plywood

A slightly more sophisticated version of standard chipboard, OSB plate is another excellent and appropriate material for building crates. Its qualities include being extremely smooth, having a high degree of moisture resistance, being dense and strong, not being afraid of snow loads, and not deforming when damp. It will guarantee that there are no drops in height and will ensure that the crate is perfectly level. The material is very easy to install and doesn’t require any specialized tools.

Brown-oriented plate (OSB)

The dodgy or ripped conifers can make up the crate beneath the soft roof. Humidity in the material should be kept to a maximum of 20%. The boards that are used should be 140 mm wide. The primary drawback is the boards’ propensity to distort as a result of moisture; as a result, the crate’s surface frequently becomes cracked and faded.

Colelite from planks beneath a cantilever

Crucial! The tree should be treated with antiseptic chemicals and medications that strengthen the material’s fire resistance before being used in construction.

Prices for various types of construction boards

Construction boards

Rules for the manufacture of crate

A crate can only be made if specific guidelines are followed. If not, the structure will quickly deteriorate and cease to function. Furthermore, in the event that the installation technique is broken, the producer of soft tiles makes no guarantees regarding the material.

So, Particular attention is required to determine the value of the angle of inclination of the slope of the roof. If it is completely small and is only 5-10 degrees, then it is necessary to lay soft tiles only on a continuous crate made of plywood, boards. And in general, in this case, this material is not recommended. If the slope angle is equal to the value within 10-15 degrees, then the crate is made of a beam with a cross section of 45×50 mm, closed with plywood or OSB. Bars are installed in pitch 45 cm. If the angle exceeds 15 degrees, then a beam of the same cross section is used to create a crate, but it is mounted with a step of 60 cm.

How to determine the roof’s inclination angle

Take note! It is crucial to take into account the local climate and the weight that the snow cover will put on the roof when determining the crate’s specifications. It also accounts for the load that will be generated by the roofing material.

Table. The dependence of the steps of the rafters on the thickness of the material used.

Step, see Plywood thickness, mm OSB thickness, mm Board thickness, mm
thirty 9 9 Not used
60 12 12 20
90 18 18 23
120 21 21 thirty
150 27 27 37

It is important to keep in mind the compensatory clearances between the material elements from which a continuous base is formed when installing the crate. Plywood or OSB sheets should be spaced 5 to 10 mm apart. If the material swells, the roof will not curve and the roofing material will sustain damage.

Prices for plywood

Plywood

Technology for creating a crate. Design features

The rafter system is the foundation of any roof. They are fixed to the Mauerlat support, which bears the maximum load and is positioned around the house’s perimeter. As a result, the Mauerlat needs to be firmly fixed. Anchor bolts are used for the fixation process. It is advised that the anchors be further fixed with the cement composition if the house’s walls are made of brick or aerated concrete rather than wood.

For a gable roof, use mauerlat.

After the installation of Mauerlat, the rafter system is created. The rafters can be made of wood, metal and other materials. The easiest way to work with wood, it is easy to fit it to certain dimensions in place, and for lifting upstairs you will not have to order special equipment. The rafters are installed with a step, which is determined based on the thickness and width of the materials used for a continuous crate (if it is laid immediately on them). For example, with a thickness of the board 2 cm, the step can be 50 cm. The same step can be used when laying plywood or OSB 10 cm thick. With an overly large step, the base of the roof is bending over time under the weight of the roofing material itself.

Speaking of which, In the event that the crate is attached to the board, its edges must be twisted to prevent future surface irregularities.

Remember that there should be ventilation on the roof. The space that appears between a dense and a solid crate will be created as it. When laying the boards on the lags, it’s critical to consider how to create a large amount. If this doesn’t happen, condensation will build up beneath the roofing material and negatively impact every component of the roof’s structure.

Waterproofing is an additional crucial element that must not be overlooked. The counterparty, or sparse crate, is created by placing the moisture-retaining material on the rafters and fastening it with bars.

If the house will be used as a residential space all year round, thermal insulation will be helpful. Thermal insulation might not be helpful in the case of a temporary summer home where they will only reside during the summer.

Putting foam on the attic roof

Self-tapping screws are used to secure the components of the crate. Less often are nails used. All the same, the hats should be drowned in the base regardless of the fasteners used. If not, there may be damage to the coating that is on top. There is a minimum 15 cm step when applying fasteners.

The purpose of filing plywood sheets is to prevent the joints in their parallel rows from being in one location. Because OSB plates are installed in a checkerboard pattern, seam screening is also required. The bars of the crate (counterparts) should have the joints of the longitudinal seams.

Putting OSP or plywood sheets on roof rafters

Crucial! When the crate is finished being constructed, the lining carpet is placed on a level surface. The most flexible tile is installed only after that.

Do not forget about the dropper

A dropper is provided by keeping rafters and cornices dry. Its function is to direct roof-derived moisture into the drainage system. Consequently, this component shields the wooden components of the building from the effects of moisture, the start of rot, and the growth of mold or fungus.

The dropper is fixed in an upright position on the roof’s edge. As a result, rainwater from the roof will enter the drain directly. Typically, this component is composed of galvanized steel and painted a color that complements the roofing material. It is put in all the way around the roof’s edge. The mounting process is completed at the crate.

Your roofing project’s longevity and success can be greatly impacted by the crate you choose. Choose from lightweight metal or wooden crates; each material has unique benefits depending on what you need. For larger loads, wooden crates offer sturdy support that ensures structural integrity during installation and transportation. Conversely, metal crates are more versatile and are favored due to their lightweight design, which facilitates handling and maneuvering on the job site.

In order to ensure safety and effectiveness, crate design considerations such as size, shape, and reinforcement are essential. Greater material capacity in larger crates minimizes the number of trips required and maximizes logistical efficiency. Strengthened edges and bottoms increase robustness, preventing damage and guaranteeing the crate can endure the demands of building sites.

In the end, the selection of crate is determined by striking a balance between these variables and the particular needs of your project. Choosing the appropriate crate ensures that your roofing materials arrive safely and are installed effectively, contributing to the overall success of your roofing project, regardless of your priorities: load capacity, ease of handling, or environmental considerations.

Video on the topic

Preparation of the base for flexible tiles | Installation of the crate, OSB, lining carpet and Anderep

Metal tile or flexible tile, which is better? Comparison of flexible tiles and metal tiles

How to choose a bitumen tile.

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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