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August 12, 2017 18:06

Which insulation is best used for insulation of the attic - a review of materials

attic It is clear that none of the premises can not be called "living" (namely those is the attic), if it is cold.Therefore, its insulation must meet the same requirements as to the rest of the house.It should immediately be noted that a single recommendation for the use of insulation for the attic, in principle, does not exist.Why?

First , in every region of its climate, and it is necessary to be guided in choosing a suitable material.

Second , location of the house also plays a role.He can stand in the valley, covered up by the winds neighboring buildings, plantations, or placed on a platform, "purged" from all sides place.

Third , in the construction of any structure has its own characteristics.For example, importantly, the material from which built the building, how to construct a system of rafters, on what kind of load it was designed, and a number of other factors.

Fourth , roof type, slope of the ramps, the presence (or absence) of roof windows, the kind of roofing material.

can note a number of requirements for insulation - fire safety, resistance to moisture, rodents, insects and many others.All this is true.But if it comes to it on the attic - living space - you need to pay attention primarily on the following indicators.

Material thickness

The larger it is, the less remains under the roof space, hence, reduces the size of the "upper" rooms.This is undesirable because of the shallowness of the rays, and so it is not fully utilized.Perhaps for parking houses and it is not essential, but if a relatively modest house, for example, 6 x 6 x 6 or 8?Under the roof of this small structure of virtually every "cm2" in the account.Water vapor permeability

important parameter, especially when you consider that to climb the attic all the evaporation from the lower floors.

insulation of attics ,

weight (density), the method

installation in this case are not intended to features such as the ability to self-insulation, used tools and equipment.The question is, how is the installation?

Insulation with lightweight fit between the rafters.If significant weight, the installation is done, or on them, or on the support frame (crate).If settling insulation from the inside, it is necessary to take into account the "rigidity" of materials.But as the need is also facing, it further reduces the usable area of ​​the attic (on the question of the thickness of the material).

Thermal conductivity

It should be understood that the "insulator" in itself does not add heat.His task - to keep him inside the building, not to go out into the atmosphere.Therefore, the focus - the ceiling of the attic insulation.It is recommended to furnish the product by a factor of not higher than 0.05 W / m2.

The fact is that if the material does not hold the heat, it will "melt" the snow on the roof.And he, crystallizing (turning to ice), gradually increasing the load on the rafter system.Than it is fraught not need to explain.

During the summer, a properly selected heater maintains the microclimate in the attic at the appropriate level and does not allow her to turn in "steam bath".


This is, unfortunately, hardly anyone thinks, and yet nothing is eternal.Therefore, the material used should not create difficulties, if necessary, for example, "patching" the roof.For example, polyurethane all good, but that - one of the varieties of "foam" used in the construction.He stuck "firmly" and dismantle the insulation is - a big problem.


Styrofoam There are several varieties of these products.For warming is the most suitable polystyrene foam (extruded).It has excellent performance, but it does have "flaws".

  • Pretty high cost of the material (if it is not cheap, ordinary foam).
  • has been observed that in mice, the more hungry, he is a "delicacy".

necessary to consider, and where is done processing.If inside, this material - one of the best options.In addition, when you use it, you can save on a vapor barrier.


rockwool This includes glass or mineral wool, which are popular with private developers.But this class of heaters, there are significant drawbacks.

First , high moisture absorption.Therefore, it is necessary to pay attention not only on the quality of hydro and steam insulation (in several layers), but also on the effectiveness of natural ventilation.If it is not enough, then mounted the forced "hood."

Second , short service life.Such insulation over time, "caking", "fray" (depending on species).

Evaporation materials

practice for thermal insulation of buildings used polyurethane or ecowool.The difficulty is that the event will need special equipment (for a "boost") and the remedy.The quality of insulation is excellent, but there are two points that must be considered.

first - would have to apply to firms providing similar services, and pay for the work of its artists.It is clear that it is "good" money.However, there are recommendations for self-installation ecowool, using (for loosening the material) E / drill with the appropriate nozzle.But what will be the quality of the insulation?For example, you must fulfill all the requirements for filling cavities (density), stacking uniformity.Without training for a good result can hardly count.

second - what to do if you have to carry out "spot" repair roofing?Dismantle of the "pie" and produce a defect elimination is possible and very, but then how to restore the integrity of the insulation layer?

But there is a significant "plus" - when sprayed polyurethane foam can not equip steam and waterproofing.

warming - by - house

For adherents of environmentally friendly products in the sample can cause such materials to insulate the attic, as algae (ladders of them), granulated paper, straw, foam glass, penokroshka.And this is not a complete list of heaters.At the same time, it does not mean that they are completely devoid of drawbacks.Everyone -. Their "cons"For example, for foam glass - low mechanical strength, and good burning straw.

Useful tips

  • In the attic insulation is not recommended the use of materials "Sediment" (expanded clay and the like).
  • most quality insulation - outside.In this case the insulation of the house will be a single layer, without gaps and transitions.Inner packing materials or used as an additional thermal protection, or the impossibility of carrying out work outdoors.
  • If external insulation materials are used with a fibrous structure, necessarily mounted windscreen.
  • to finish top of the attic should not be used roll materials (for example, "Ursa").Under its own weight, they will gradually ramp up.

not consider for advertising (the material in question is not bad, but his choice of we have already told, there are nuances), but the video is filmed quite professionally:


  1. When selecting insulation for the attic room is not necessary to rely on friends, friends, neighbors and just "knowing" people.It is done individually for each building.
  2. price of the material - is not the main indicator.It is necessary to calculate how much "spill over" additional activities.For example, mineral wool - hydro and steam.Therefore, all aspects must be considered when determining costs.Perhaps the use of expensive thermal insulation ultimately cost a lesser amount than the improvement of thermal protection by means of cheaper products.