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October 12, 2016 23:18

Thermal insulation of the roof from the inside

Warming of the roof from the inside produces not only to arrange in the attic extra room, but for maximum heat retention during all house.

Thermal insulation of the roof from the inside

roof insulation inside

If the building has a roof, the insulation is carried out directly by the roof, which is a room for the future, not only the roof, but the walls.If the design of roof and has a slope, the most satisfied with the thermal insulation in the attic ceiling.

third variants reflux eploizolyatsionnyh measures applied in regions with harsh climates, where insulated itself and the roof from the inside, and the ceiling.

Types applied insulation

Article Contents

  • 1 Types applied insulation
    • 1.1 Video: mineral wool - excellent material for thermal insulation of roofs
    • 1.2 Vapor Sealing cover
  • 2 insulation of attic floor
  • 3 Warming rays roof
    • 3.1 Video: tips on warming house roof
  • 4 Warming of the roof from the inside with polyurethane foam
    • 4.1 Video: spraying foam on the slopes of the inside of the roof

Modern building materials market offers a lot of kinds of heaters, of which can choose suitable for all thermal insulation work.

  • Bulk - is sawdust, expanded clay of different factions, slag, dry leaves or needles.These heaters are used for filling in the attic floor, and they perfectly protect the lower areas of the house against the ingress of cold, but fail to make himself warm attic .
The best choice for roof insulation is mineral wool

optimal choice for roof insulation is mineral wool

  • Mineral wool type, polystyrene, penofleks and polyurethane foam suitable for insulation as the attic floor and roof rays.

All these materials - enough light , so they do not weight the structure of the roof and around the house, but it will make it much warmer.installation of thermal insulation materials technologies differ from each other, so you should consider some of them.

should be noted that with the advent of support materials which facilitate the work process and are aimed at protecting the most insulation from external influences and the preservation of their performance characteristics, it has become easier to carry out and the installation process.

Video: mineral wool - excellent material for thermal insulation of roofs

Vapor Sealing cover

One such material is a vapor barrier film.It is designed to protect wooden structures, and insulation from exposure to vapors arising from temperature changes and lead to the formation of condensate.Excessive moisture provokes the appearance of mold, which destroys the structure of the tree, reduces the thermal insulation characteristics of insulation and promotes the appearance of an unpleasant smell in the room.

Steam insulation membrane

Steam insulation membrane

Steam insulation membrane is fixed to the roof structure or ceiling before installing thermal insulation materials.

When using a vapor retarding film in a heated room, it only under a finishing layer walls.

To be protected structure, which have an effect on the one hand high temperatures and with another - low , a vapor barrier should be placed on both sides.These structures include the wooden attic floor and the roof when it warming.Concrete slabs do not require laying vapor barrier materials.

Steam insulation membrane stretches on both sides of the insulation

Steam insulation membrane stretches on both sides of the insulation

protective film may have a different thickness and be of different types - conventional nonwoven fabric or foil membrane.In the case of the latter on the design attic floor, it is laid down foil, since it reflects the rising heat from the bottom to the ceiling, thereby , not letting him go outside.Between the sheets of material are held together with tape foiled, which helps to create a cover for leaks.

Installing a vapor barrier foil

Mounting foil vapor barrier

Insulation of attic floor

Any insulation activities best carried out during the construction of the house, but, unfortunately, very often it is done only when felt by the winter cold.

If the non-residential attic , it will be better to insulate the ceiling

If the non-residential attic, it will be better to insulate the ceiling

Before sleep or lay the insulation, it is necessary to carry out preparatory work.This is especially important when using expanded clay fines, slag or sawdust.

  • Earlier, when the sale was not modern auxiliary materials, wooden plank floor attic prepared as follows:

- Boards, fixed to joists, thoroughly coat with clay or lime solution, having an average density for consistency.These natural materials create a good overlap of tightness, but at the same time - allow "breathing" of the assembly.

- After drying clay or lime, manufactured insulation works.Previously, this was mainly used slag, sawdust, dried leaves or mixtures of these materials.They fall asleep between the beams on the prepared board.

It should be noted that the old traditional method - enough reliable , so some builders even prefer it to modern to this day.

  • In modern construction mainly for flooring under the heater uses a special vapor barrier film. Her paintings are placed entirely on the entire attic area of ​​overlap 15 - 20 cm, deepening between the joists and securing for and beams boards.Cloths between a recommended glue construction adhesive tape.
The entire surface of the attic floor is closed first vapor barrier membrane

entire surface of the attic floor is closed first vapor barrier membrane

film will be a further obstacle to exit the premises heat the house through the ceiling, as heated air, rising up , finding no way out, will go down and stayinside the house.

  • Next, on film poured Insulating material, mineral wool fits , poured concrete block or openings between the beams is filled ecowool .You can also use a heater used previously - slag or sawdust.
For warming overlap ecowool fit perfectly

For warming overlap perfect ecowool

  • To avoid thermal bridges through the wooden beams, they also need to fix a thin layer of insulation.
Laying mineral wool between the joists

laying mineral wool between the joists

  • Top insulation material is laid still a vapor barrier, as well as before - overlapping . This layer film is attached to the joists rails, which are often referred to as counter- .
  • Top plank flooring boards or thick plywood.
The general scheme of attic floor insulation

general scheme of attic floor insulation

Sometimes, steam can be secured from the inside of the room to the wooden ceiling, but in this case it will need to be sure to finish, such as gypsum boards.They will line the ceiling and become more one additional insulation layer.

Warming rays roof

If the attic is supposed living room , insulate the roof slopes

If the attic is supposed dwelling, insulated roof slope

When warming roof slopes, as well as at warming overlap apply mineral wool andpolystyrene foam, mineral wool but in this case is preferable, because it has almost zero flammability.

If still decided to apply the foam, it is recommended to purchase the extruded version.Although it has a slightly higher thermal conductivity, but it is not flammable, and it is very important for wooden structures.

for roof insulation rays using different systems, but they are always present layer vapor barrier material, insulation, waterproofing and kontrobreshetka .

The total concept of the roof insulation

total concept of the roof insulation

1. one of the following insulating "cake" is shown on the scheme.It is used in the construction of roof and deck roofing.

  • On rafter waterproofing system is laid film.Typically, this layer is used polyethylene having a high density (more than 200 microns thick) - aka roof protects not only against moisture penetration from below but it wind. film lay overlapping 20 ÷ 25 cm and fix it to the rafters with staples and stepplera .
  • Top film on each rafter is fixed counter- 5 ÷ 7 mm thick.It is necessary to ensure that the roofing material is not directly adjacent to the waterproofing film, and it was a short distance for air circulation between them.
  • Further, if the roof slopes will be covered with soft roofing materials, must be counter-top to lay the plywood. In case used slate, or other rigid sheet instead of plywood crate arranged, the width between the rails it is calculated by the length of the sheet of roofing material.
  • When crate is ready, the roof veiled selected coating.

You can then move on to insulation measures, which take place from the inside, that is, out of the attic space.

Laying the mats of mineral wool between the rafters

laying mineral wool mat between the rafters

  • between rafters stacked mats of mineral wool or other insulation.They should fit snugly as possible between the elements of a wooden structure.Mounting mats made from the bottom up, gradually rising to the roof ridge.Insulation should have a thickness the same as the width of the rafters or a little less its , about 10 ÷ 15 mm.
  • ulozheniju insulation prolonged vapor barrier film , which is fixed to the rafters rails.The film also plank overlapped and glued together construction tape.
The last stage - a decorative wall finish attic rooms

last stage - a decorative wall decoration attic

  • Further, if the attic space is equipped with a living room, the entire surface is sheathed with plasterboard or paneling.Also in this case, except for the walls and ceiling and the floor are warmed, ie attic floor.

2. Another option may be thicker Warming "pie", which also keeps the device immediately if the roof.

Thermal insulation of the roof in two layers

roof insulation in two layers

  • In this case, as the truss system is laid waterproofing waterproof film.
  • Over its arranged crate for roofing material.
  • Next from the attic, laid between the rafters first layer of insulation, which should have a thickness equal to the width of the rafters.
  • then stuffed to the rafters cross rails at a distance from each other equal to the width of the insulation the next layer.In this case, the insulation has been used for more delicate.Its thickness must be equal to the thickness of the packed cross rails.
  • Thereafter is vapor barrier film, which is fastened to the rails brackets.
  • to the rail is then attached and the interior finish material.

If the roof is insulated in an already built house where the roof covering is fixed, then to the rafters of the attic by brackets attached vapor barrier, and only then fit insulation. Next process is the same as in the previous versions.

Video: tips on warming house roof

polyurethane foam roof insulation inside

Thermal insulation with polyurethane foam passes differently than bulk materials or mats of mineral wool and polystyrene.

This method of thermal insulation in recent years has become increasingly popular and is suitable for both conventional attics, and for the attic, which has since become an extra room.

Thermal insulation slab polyurethane

Warming overlapping polyurethane

If the attic is ventilated and it will not get the living room, the attic floor is insulated only.For this and beams board recommended to moisturize for better adhesion on wet surface between beams sprayed polyurethane foam with a thin layer.After its expansion, the increase in volume and pour, if need be, applied still one layer.Such warming would be sufficient to keep the house warm, since the foam penetrates into all the cracks and seals them.

If loft allows us to arrange for its height it room or the attic is an attic superstructure to the house, except the ceiling insulated with polyurethane foam and roof slopes.

Spray start from the bottom of the design, gradually rising to the roof ridge.Sprayed foam between the rafters, and the lower layers her, rising and stiffening will be the reference for the next upper level applied.

Spray polyurethane foam produce portions upwards

Spray polyurethane foam producing areas, from the bottom up

This attic insulation or attic creates completely sealed unventilated space.Polyurethane foam is a good trap heat indoors in winter and will not allow overheating the attic during the hot summer days.However, ventilation still is provided as space must necessarily receive airflow.

This type of insulation has the following advantages over other heaters:

  • polyurethane coating has no joints and seams all over the insulated area.
  • achieved a significant reduction in temperature in the attic and the rooms on the lower floors.
  • building gets reliable protection against high and low temperatures, affecting the house from the outside.
  • Such a method warming shows a high ROI in a very short period of time, for the account of reduce heating costs due to the low thermal conductivity of the sprayed material.
  • When spraying foam directly on the roof, it receives an additional stiffness and strength, so the spacecraft to to rovelnoe coating forms a reliable connection with entire roof structure. At the same time, the polyurethane layer does not significantly weighting the roof.
  • Ease of application - foam closes all hard floors and roof space, penetrating into all major and minor holes and cracks, widening and sealing walls and floors.
  • Polyurethane foam is highly resistant to moisture , rise to any form of biological life, high and low temperatures, prevents the emergence and development of the processes of rotting wood.
  • Pena provides not only excellent thermal insulation premises, but also well isolates from outside noise outside.Polyurethane foam is not
  • gives shrinkage, not crushed and does not soften.
  • Insulation has quite long life, which is about 30 years.
  • material does not emit toxic to the human body substances and odors.