Today, more and more people are striving to replace ordinary slate with a strong and durable metal tile. The roof of this material looks presentable. The metal tile is a steel sheet of various geometric shapes and colors. She gained her popularity thanks to many positive properties.
The basic rule in the construction of this element is to comply with all building codes, that is, installation rules must be strictly followed, and specialized materials must be applied. In this case, the roofing pie under the metal tile will have heat and sound insulating properties.
Installation of metal is often done by professionals, as it is a laborious process. Each joint must be rolled to ensure the strength and tightness of the entire roof.
Basic information
Metal is a common roofing material. She gained her popularity thanks to:
- high operational characteristics;
- low cost;
- attractive appearance.
There are different types of metal tiles , each of which differs in profile and protective spraying. The last factor affects the durability of the roofing material.
To create a warm and waterproof roof, one metal tile will not be enough. In this case, it is necessary to use other materials that provide heat and vapor barrier to the entire structure. All this can be found in any hardware store.
When choosing a metal tile, it is necessary to pay attention to protective pollination. It protects the material from the negative effects of the external environment. As a protective layer, passivating and polymer mixtures are used. They not only extend the service life, but also give a pleasant appearance to the structure.
Roofing pie for metal: installation procedure
To create the right roofing cake, you must have at least three materials. The main layer is metal. It should not adjoin other elements. In this case, an air gap forms, which serves as natural ventilation.
A roofing pie for a metal tile, the formation order of which has several technologies, must be formed after a careful selection of materials. It is best to start with thermal insulation.
The installation manual itself contains several steps:
- First, the vapor barrier is attached to the inside of the rafters. To do this, use a construction stapler.
- Next, lay the insulation. It will be located between the lags on the outside.
- Then waterproofing is performed. It is laid up and down along the slopes. For installation of waterproofing, a construction stapler is also used.
- After that, the bars of the counter-lattice are fastened along the axis of the rafter legs.
- Boards or bars are packed over the crate. In places of skates and other abutments, a continuous crate should be used.
After this, it is already possible to begin installation of the roof itself. When performing all work, maximum safety must be ensured, since the operation is performed at height.
Workers must use special safety belts and keep all tools in their belts.
Main components
The roofing pie has a complex structure. Each layer performs a specific function. The device of a roofing pie under a metal tile is as follows:
- external coating - protection against precipitation;
- vibration isolation absorbs any noise caused by external factors;
- crate - the main element made of wooden elements;
- converter cabinet - a wooden device used as ventilation;
- waterproofing - a system that protects against moisture;
- the ventilation gap serves to get rid of moisture;
- rafters;
- vapor barrier - a layer that protects the rafters and thermal insulation from moisture;
- interior decorative lining of the attic.
Roofing pie under a metal tile with a cold attic
Building a roofing pie for cold rooms does not take much time. Many people prefer the budget option, which implies the presence of tiles, battens and cheap waterproofing. As the last layer, a plastic film is used.
A roofing pie for a metal tile, the formation of which is described in the article, begins to be done by fixing the waterproofing layer to the crate. This is done using a building stippler and thin nails. For additional fixation, self-tapping screws can be used, which in the future will hold the counter-lattice.
Note! The waterproofing film is not attached in a stretch, but with a slight sag. This contributes to the timely drainage of condensate.
The device of the insulated roof
A roofing pie for a metal tile with an insulated roof implies the use of additional materials, which were discussed above. A correctly formed pie allows you to create comfortable living conditions in a house or apartment. The waterproofing material is attached to the crate with a slight sag. The lath serves to hold the metal tile. When erecting it, a different step of the boards can be used, depending on the angle of inclination of the ramp.
Before starting the formation of a roofing cake and building a roof, you must carefully study the instructions that are provided with the material. There are many manufacturers of metal tiles. According to personal preference, you can choose the appropriate type, size and color of the product.
When erecting a roof, you should not save on materials. The quality of heat and sound insulation depends on them. The rafter system must withstand heavy loads - snow cover and people who carry out roof repairs.
Let us consider in more detail a roofing pie under a metal tile, characteristics and basic properties of layers.
External coating
Exterior coating is a popular option when installing a roof, as it has many positive sides. Properly mounted material will last a long time and will not need constant repair. There are many manufacturers of this coating. To create a seal between the wall and the roof elements, gaskets are used. They are of two types: hard and soft. This item is purchased with metal.
A prerequisite is the installation of a soundproof layer. The sound of rain or wind will transmit vibration through the building structure and cause an unpleasant effect. To avoid this situation, a vibration isolation layer is mounted on top of the crate near the mounts.
Crate Functions
A roofing pie under a metal tile is erected on a special wooden crate. It is a frame and serves to distribute loads throughout the rafter system. Many manufacturers regulate the value of the step of the crate, which is 300-350 mm. This parameter depends on the angle of the roof. The smaller it is, the shorter the crate pitch should be.
Note! The crate and the crate must be treated with an antiseptic. This is necessary to increase the life of the material.Waterproofing
When building a roofing cake, a prerequisite is the presence of a waterproofing material. This element performs the following functions:
- protects against moisture on the rafters;
- prevents the formation of moisture on the surface of thermal insulation;
- reliably protects the building structure from other damage.
The most suitable option is a material with anti-condensation membranes. They are mounted to the rafter legs using a conventional stapler. The crate and the counter-crate are laid on top. Membranes not only have good waterproof properties, but are also resistant to ultraviolet rays.
Questions on heat and noise insulation
Insulating material must be present in the roofing pie. It is mounted between the rafters and prevents the penetration of cold air. Soundproofing also plays an important role, since this type of roof belongs to the class of high-profile.
As insulation use mineral wool materials of varying degrees of hardness. In practice, it is better to use a material with low thermal conductivity and high noise insulation. The most suitable option is considered to be semi-rigid insulation made of glass wool.
Additional Information
If fibrous thermal insulation material is used, a gap must be provided between it and the waterproofing layer.
As a heat-insulating material, materials such as:
- polystyrene sheets;
- mineral wool basalt sheets;
- glass wool;
- polystyrene foam.
Vapor barrier
The vapor barrier prevents moisture from entering the living quarters and the elements of the roofing system. To ensure this, vapor barrier is placed over the entire surface of the roof. After this proceed to the inner lining. It is made of wood or drywall.
Conclusion
Metal is one of the common materials for roofing. In order for it to provide comfortable living conditions for a long time, it is necessary to form a roofing pie. It consists of different layers, each of which has a specific function. It should be noted that for cold and warm roofs the formation order is different. In the first case, you can simplify the design by using only waterproofing and tile. For warm roofs , the presence of all components is necessary: heat, hydro and sound insulation. Before starting the formation of the roofing cake, you should familiarize yourself with the technical characteristics of the materials and with the instructions for their installation.