Thermal insulation of attic inside if the roof is already covered

Even at the stage of design and construction of a private house thought out the purpose of each room and its decoration. Sometimes eventually want to expand the existing squares without significant financial investments. This is easy to achieve by performing insulation attic inside. If the roof is already covered, the installation work is somewhat more complicated. We offer to get acquainted with the technology used.

Video: How to insulate an attic for winter residence, if the roof is already covered

Lack of living space can be compensated reasonably manage the available squares. Living in a private home, you should definitely to equip the attic, Transforming it into a comfortable living room. For those who do not know how to insulate the attic for winter use, the video process can certainly help to understand all the intricacies.

We propose to consider in detail all the stages of the insulation from the inside, including preparations for the assembly work and the choice of suitable heat insulator.

Preparing the attic space before starting work on warming

If the attic is used as a dwelling, it is necessary to prepare for the heat insulation work. This area must meet certain requirements that are prescribed in the relevant regulations. Here, unlike the attic, the roof should be sloped and ceiling should not be less than 2.5 m.

In the preparation stage should decide:

• kind of thermal insulating materials to be used for insulation of the attic. On this will depend directly on the level of heat and comfort of living in a given area;
• communications, which will be announced in the attic. To do this, define and correctly select the appropriate engineering solutions;
• the way in which will be decorated with the bearing elements.

Each of these items is able to exert a serious influence on the procedure and quality of thermal insulation works from the inside. Selection of heat and waterproofing will affect the performance of the premises. In case of insufficient thickness heater at the top it will be cold, with an excess - the probability of occurrence of condensate.

What tools are needed to perform the work

The choice of specific equipment and tools depends on the type of insulation material. As a general rule, should be prepared for the installation works from the inside:

• scissors and a knife with which the cutting is performed heat insulator and other materials;
• Osprey staple gun with a suitable size, through which the material web can be fixed;
• tools for working with the material from which the house is built. Wood needed a chisel, mallet, planer, ax and chisel;
• hammer;
• screwdriver.

Besides the heat-insulating material for insulation of attic inside should have available:

• steam and waterproofing;
• bars for the sheathing device, if it is provided for the installation of the selected method;
• hardware. Should buy screws and nails of different sizes;
• Construction scotch tape;
• mounting foam.

Choosing insulation for mansard roof

Manufacturers offer a wide range of thermal insulation materials. Each of them has its own distinctive features that should be taken into consideration when choosing heater for mansard roof. We offer to meet with each of them to make it easier to choose the best option.

Styrofoam

Budget option, which most commonly sought in the insulation of the attic (and in vain). Easily processed and assembled by hand. Well suited for the attic, since it has small specific weight and low thermal conductivity. But it has the biggest and most significant drawback: it is extremely flammable, and very fond of rodents.

extruded polystyrene

Operational characteristics of extruded polystyrene are comparable with the properties of the foam. However, the process of forming the heat-insulating coating is somewhat different, that will avoid the formation of gaps. Having stepped joints provides reliable fixation elements and protects against penetration of cold attic outside. We wish to note that the active material is also flammable and requires the most serious ratings for selecting it as insulation.

Mineral wool

The heat insulator is used everywhere. This natural material, which introduced a number of synthetic fibers to improve performance. An affordable cost. Sold in rolls or plates, which considerably simplifies the installation work.

fiberglass

Insulation with longer fibers than that of mineral wool. This contributes to the elastic characteristics and acoustic properties. In terms of hydrophobicity is slightly inferior to the mineral counterpart. It has a low flammability. Absence in the toxic substances makes it possible to use glass wool for the internal insulation of the attic.

stone wool

The most expensive type of wool used in the performance Thermal insulation work. It consists of basalt fibers. It can be supplied in the form of plates. It is worth more than its counterpart - glass, but it allows you to form a better thermal insulation coating.

Ecowool

The basis of the material is paper - environmentally friendly material. Before applying makeup thoroughly crushed. Then, using special equipment, it is blown into the cavities, thus preventing the emergence of a draft.

Polyurethane foam

Modern insulating material, ideal for the inside of the attic insulation. The used technology allows to form a thick film having no cracks and gaps. Opting for this technology, it is possible for at least 30 years old are not afraid of drafts and cold.

penofol

One embodiment of expanded polyethylene, are widely used for insulation of attics modern buildings. The presence of one or two-sided coating provides a highly reflective characteristics and good sound insulation properties.

Overview of the advantages and disadvantages of different types of insulation for the attic

Each of the heat insulators can be used for thermal insulation of mansard roof of a private house and has its own advantages and disadvantages. To discover the advantages of each type so you can compare them with each other and to give preference to a particular heater.

StyrofoamDiffering affordable cost is:

The disadvantages include low water vapor permeability. As a result, in the attic may be hot and humid, and high humidity can cause mold. Shrinkage wooden structure during operation may cause gaps between the foamed plastic slabs. Often between the sheets insulator plant rodents. Well, as mentioned above, in case of fire instantly flammable and emit toxic gas.

The advantages extruded polystyrene foam It should include:

Among the shortcomings should be noted increased flammability. Impregnation of flame retardants to minimize this negative property.

The main advantages mineral wool It should include:

However, such insulation is sufficiently good moisture accumulates. Planning to perform insulation of the attic from inside with mineral wool, it is necessary to take care of the presence of high-quality hydraulic and vapor barrier.

The main advantages glass wool It is the absence of toxic substances in the composition and low flammability. If done correctly, the installation is able to well retain heat inside the house.

Attention! When the attic insulation glass wool should be mandatory to use personal protective equipment.

stone wool reliable in operation and is safe for the environment. It has a low coefficient of thermal conductivity and near-zero flammability. It is able to withstand considerable external influence. The formed coating has good soundproof characteristics.

The advantages Cellulose Fiber It should include:

Among the shortcomings should be noted the difficulty of application and high cost.

Polyurethane foam It has high performance characteristics. Shrinkage of a wooden house is unable to affect the characteristics of the formed insulation layer. The coating has an optimal hardness and is not afraid of moisture. During installation inside can be dispensed from forming vapor barrier.

The disadvantages include the need to use a special dispenser. This can become a serious problem for those who had planned to carry out insulation roof inside your own hands, as such equipment is quite expensive. Furthermore, it is necessary to have sufficient knowledge and to have certain skills to independently apply a dense coating quality.

penofol demand for insulation of attics inside, since such insulation:

Attention! Warming of the attic penofolom requires significant financial investments.

The nuances of the attic insulation with different geometry house roof

Thermal insulation of mansard roof has a number of features, dictated by the specifics of the room. Complex design of the podcherdachnogo space requires competent approach. Otherwise it will be difficult to avoid thermal bridges or condensate.

How to insulate the roof inside the house with his own hands, if she has a rather complicated geometry? The answer to this question in each case is searched individually. The choice is made in favor of rigid insulation, as soft materials with a large angle of tilt slide. Inside insulation works in this case it is best carried out using slabs. Crate is mounted so that rafters arranged at a distance which is 10-15 mm smaller than the width of the plates. This will avoid the appearance of cracks through which the cold can penetrate into the room.

Attention! To create favorable conditions should perform insulation of walls of the attic from inside your own hands, as well as other surfaces.

Given that the complex of the roof rafters are cold bridges, after stacking the top plates laid mats fastened continuous layer of insulation. Its thickness is much smaller than the main heat insulator. Paroizolyator top fit.

Do I need to arrange for waterproofing insulation

Availability waterproofing layer in the formed cake is a must. Thus, it can prevent the formation of condensation or infiltration of precipitation into the room. As a result, increases the service life and improved reliability of the formed insulation layer.

Most often the choice is made in favor of waterproofing film: diffusion, Superdiffuzionnaya breathable, anti-condensation.

Warming of the attic from inside their own hands - the basic nuances video

If you decide to carry out installation work in-house, it's time to learn how to insulate the roof from the inside depending on the insulation material.

Insulation of attic with mineral wool inside their own hands: Process video

If you decide to perform heat insulation of the roof inside the attic with his own hands with mineral wool, the work should be performed in the following sequence:

1. Mounting waterproofing.
2. Cutting mineral wool. For this cut off strip width of 3-4 mm greater than the distance between the rafters.
3. Stacking of mineral wool between the rafter beams end to end, but without puffing, it is attached by means of nylon filaments or a binding wire wound around the nail in the rafters.
4. Fixing a vapor barrier.
5. Finishing.

Next video of the mineral wool insulation inside the attic with his own hands will allow a more detailed understanding of the process:

Warming of the attic foam

Opting foam, can significantly reduce the cost of implementation of the thermal insulation works. The main thing - to deal with the technology of the attic insulation foam. Installation work can be performed in the following sequence:

Photo	Description of work
	Process wooden lath elements a special composition to improve their performance and durability. Ingredients must be suitable for work indoors.
	Measure the dimensions of roof beams and the distance between them to define the parameters of the foam.
	Cut the sheet into the foam resolution.
	Foam sheets laid between the joists and fix with screws.
	Zapenivaem joints and cavities formed between the beams and sheets of foam. Excess foam is cut off after solidification. If necessary, stacking the second layer.

Warming of the attic with polyurethane foam

Before the beginning of the thermal insulation works, check the strength characteristics of the roof system. Given that weighs more polyurethane foam or mineral wool, the supporting structures must be designed for such a load.

Thermal insulation of attic polyurethane foam inside is made as follows:

Photo	Description of work
	Prepared special equipment by means of which the composition is applied to the surface of the walls and ceiling of the attic.
	In previously prepared base composition is applied. Forming a continuous coating of uniform thickness.
	Controlled quality of the formed layer.

Overview of the main mistakes made with insulation inside the attic

It is not enough just to know how to properly insulate the attic from inside his own hands. Be sure to get acquainted with the typical mistake that many inexperienced builders. This is especially true when working with insulation that is easy enough to absorb moisture. Experts recommend:

• not to use the hygroscopic insulator for the protection of roofs with a slope less than 13 degrees. In this case, high risk of collecting rain on the roof surface with subsequent leaks, which can cause damage to the thermal insulation layer;
• necessarily provide an air space between the roof and the layer insulation for ventilation and drying of the heat insulating layer;
• stack all the layers of the "pie". Lack of steam waterproofing or negative impact on the end result;
• trust unit roof windows specialists. Given that such constructions are mounted at an angle, many installation operate poorly.

Having dealt with how warm the mansard roof and the walls, you can safely proceed to the execution of works with his hands. If you have already completed attic insulation on its own - share in the comments that you have turned out in the end. Your work is of interest to us and our readers.