Today, almost all city dwellers, living especially in large cities, dream of their own home. If your dream has finally come true, then sooner or later you need to do home improvement so that living in it is as comfortable as possible. One of the many indicators of comfort is a reliable roof that can withstand atmospheric influences. Agree that it should not only help retain moisture, but also keep warm in the house. How to insulate the roof from the inside, today we will tell in our article to all prudent owners and those who will soon become them.
The choice of materials for insulation
When building or repairing a roof, it is necessary to take care of high-quality roofing, thermal insulation and waterproofing. There are a huge number of insulating building roof insulationwhich have excellent performance properties.
When choosing, pay attention to the following aspects of the issue:
- material price;
- operational properties;
- ability to withstand mechanical and climatic influences.
Also, much in the choice of material depends on the configuration of the roof:
- flat;
- pitched;
- attic;
- tent.
Not today, roof insulation from the inside is widespread with polyurethane foam (polyurethane foam), foam concrete, fiberglass boards, polystyrene foam boards, mineral wool boards, foamed glass.
To varying degrees, all heaters for different types of roofs differ:
- environmental friendliness;
- vapor permeability;
- thermal conductivity;
- water absorption.
In a number of characterizing properties of heaters, strength and price parameters can be included. The most popular insulation includes mineral wool boards that can withstand high temperatures and have low thermal conductivity.
This material can be used for insulation of any type of roof. This is what concerns thermal insulation materials.
Waterproofing materials used along with heaters allow you to protect the room from moisture. The construction market today represents all kinds of mastics, polyurethane, fiberglass, roofing felt, laminated polypropylene films.
Advice. We have not presented a complete range of materials, therefore, before insulating the roof from the inside, it is necessary to consult with specialists on the issue of reducing heat loss in the house.
Warming rules
In the question of how to insulate the roof of a private house, there are special points that are important when performing insulation, both with mineral heaters and with plant fiber materials.
All these points can be combined into a number of general rules:
- In a process like roof insulation from the inside, it is necessary to ensure that the insulation does not block the ventilation gap. If a superdiffusion membrane was used in the installation of the roof, then the installation of heat-insulating materials is carried out close to it. This is done in order not to block the ventilation gap, which is located above the membrane. When using a conventional roofing film, it is necessary to provide two gaps - above and below the film.
- The location of the joints of the insulation boards in adjacent layers should be staggered;
Attention. If the insulation layer is 200 mm in total, then it is recommended to use not four layers of 50 mm, but two of 100.
- To ensure a snug fit of the sealant to the rafters, its width must exceed the distance between the rafters.
- Carefully observe the fit between the heat-insulating plates.
- If there is a large step between the rafters, then the insulation material from the side of the room must be additionally fixed. To do this, the screws are screwed into the rafters, and a wire is pulled between them.
- In the event that the cross section of the rafters is small, a combined insulation scheme is used, that is, the insulation is settled between the beams and under them
- When using mineral wool boards in insulation, it is mandatory to use a waterproofing material, during the installation of which attention is paid to the execution of joints and the quality of installation.
Based on the above rules, we can conclude that the installer in the process of insulation must take into account many nuances.
In the question of how to insulate the roof in a private house, both the requirements for the quality of the insulation and the high requirements for installation work play an important role.
Preparatory process
We have already said that the choice of insulation depends on the configuration of the roof, since double pitched roof will not require such costs as, for example, four-slope. Also, this indicator affects the technique of performing installation work.
Attention. In any process, whether it is flat or pitched roof insulation, the first step is to check the roof elements for dampness, rot and damage.
If necessary, damaged parts must be replaced and the roof elements treated with antiseptic agents.
In the event that elements of heating, electrical wiring, and water supply pass under the roof, they must also be carefully checked. You can proceed directly to the insulation work when all the elements of the roof are put in order.
Warming procedure
The roof can be insulated from the outside and from the inside. The flow of warm air in the house is always directed upwards. So heat loss occurs through the roof. Therefore, it is necessary to figure out how to insulate a pitched roof indoors.
Basically, this type of roof is insulated with soft roll or slab materials, which are laid between the rafters on the crate.
Insulation in this case must be protected from below with a vapor barrier film, and from above - with a waterproofing membrane. The places where the protective films adjoin are glued with a sealing tape.
When insulating a pitched roof, it is imperative to provide for a gap between the roofing and the insulation.
We said that the thermal insulation is laid between the rafters, but it is possible to place it on the rafters. If the insulation process is performed correctly, then the insulation will not only help save heat in the house, but also serve as sound insulation.
Helpful Tips
For almost all types of roofing, the insulation scheme is the same. More clearly shows the insulation of the roof from the inside of the video. If you are not knowledgeable in this area, but need roof insulation, carefully listen to the advice of professionals.
All calculations for material consumption, its thickness and recommended grades of use can be provided by the designer. But the main thing is how you install the insulation.
Attention. When laying mineral wool insulation, experts do not recommend compressing them.
Laying thermal insulation between the rafters should occur evenly, without bends. Heaters are able to gain moisture, therefore, during their operation, storage and installation, it is necessary to provide protection from moisture.
Proper insulation will make the house more cozy and comfortable, while reducing heating costs.
Theory remains theory. We advise you to use our recommendations in practice and do not forget that the insulation is carried out in conjunction with the installation of waterproofing materials.
In combination, these materials will provide the roof with reliability, durability, resistance to external influences, which is important for permanent residence in the house or temporary rest in it.
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