Technology insulation inside the roof with his hands

In some cases, the inside of the roof insulation is a prerequisite for a comfortable microclimate in the house.These include conversion of non-residential loft in the attic, heated floor, as well as the replacement of roofing, such as slate, for metal or corrugated board, which is easy to condensation and frost at temperature drops.

Warming of the roof from the inside is performed using any suitable insulating materials on one condition: they must ensure the waterproofing on the outside and on the inside vapor permeability.In other words, moisture condensation does not fall in the insulation layer, but in this case water vapor must successfully discharged from the inner space of the attic room or attic.

Principles roof insulation inside

Well suited for this purpose fibrous insulation materials such as mineral wool.In contrast to the insulation foam, polyurethane foam or Penoplex they have a good water vapor from the inside out and the direction of removal of water vapor is ensured by the use of special membrane film.

Tap water is necessary not only to reduce the humidity in the attic.Fibrous insulation, getting wet, lose some of its insulating properties, are crushed and deformed.Therefore, when the inside of the roof insulation is necessary to strictly observe the sequence of layers of the so-called "pie".The first layer on the inside is usually a decorative finish, in its capacity as may be any material: wall paneling, drywall, plywood.She often plays the role of a binder, which provides support for the insulation.Further needs a small ventilation gap of 2-3 cm, which provides free air circulation.The next layer is a vapor-permeable membrane, and the direction of vapor removal should be directed towards the heater.Sam heater should be of sufficient thickness for good insulation, not less than 3 cm. For residential attic floor is laid a layer of insulation is usually 10 cm. In a heater placed vapor permeable waterproofing membrane with windproof properties, with the direction of parootvedeniya should be directed to the outside of the insulation.Thus, the "thermal insulation cake" to protect against the ingress of moisture in the insulation on the outside, but copes with diverting water vapor out of the room, which provides a comfortable humidity.

roof insulation technology inside

1. Warming of the roof from the inside starts with the laying of the waterproofing layer.Making it easier to stage roofing roofing materials.Stack it perpendicular to the rafters with a little slack, smooth side up.Strip of material is sized mounting tape so as to prevent cracks and gaps.On the rafters then stuffed counter-bar of 50 mm, while the bar is placed crate of planed boards.On board is laid roofing.In the case of thermal insulation is already finished roof waterproofing is secured under the rafters using a staple gun, carefully place prokleivaya tape fastening.Rafters should be treated pre-antiseptic, because with this method of fixing their broken ventilation and it is possible to rot.
   

   Placement waterproofing layer

2. Insulation mats selected thickness is placed between the rafters vraspor or using rough filing.As a binder, you can use thin slats or strong twine attached to the rafters with nails.The mats should fill the space between the rafters of a sharp knife cut if necessary.If several layers of mats are laid to give a layer of insulation required thickness, the upper layer of the joints completely cover the bottom.The lower layer of insulation have shifted or perpendicular.
   

   Laying thermal insulation mats on the roof

3. put on top of a heater insulation film.The film has one side with a smooth surface - in a direction of its insulation.The rough surface of the film easily absorbs moisture vapor, it must be directed towards the room.Proper laying vapor barrier is very important, because the film throughput directed in one direction only, and if it is put on the contrary, condensation will form on the surface.The film is attached to a stapler, prokleivaya joints and fixing points.
   

   Sheathing roof lining

4. the rafters on top of the vapor barrier is attached bars or guide profile, which subsequently mount the selected inner casing.If finishing the attic is not planned, it is possible to perform a binder of edged board with a clearance of 5-10 cm, the board is pre-treated with antiseptic.

insulated roof using foam insulation

There are other ways of warming of the roof, for example, a popular method of spray foam insulation, such as polyurethane foam.To do this, no special training is required, but the roof battens operate with solid cover and an antiseptic.For spraying polyurethane foam requires special apparatus, the feed carbon dioxide under pressure, so it independently perform often impossible.For roof insulation polyurethane foam inside need to call experts who will cause the entire space of the attic foam layer of the required thickness.After drying the foam to expand and form a seamless and waterproof layer with low thermal conductivity.The disadvantages of this method include its vapor permeability, so when in a residential attic insulation of the roof from the inside with polyurethane foam it is necessary to equip forced draft to remove excess moisture.

roof insulation will save up to 25% of the heat, and metal roofs will eliminate the formation of ice and condensation, thus extending their service life.If the attic floor are the living rooms, a layer of insulation should be selected in accordance with the thermal calculations.