Insulation for the roof and the roof: a review of the materials, a comparison of their consumer qualities

By Admin | Garden And Buildings / Construction And Repair
19 May 2016

Warming of the roof - a significant barrier to the cold in the winter and in the summer - for heat.The proper choice of insulation and the quality of work performed depends on how well you manage to keep the heat in your home and keep the interior trim.In the summer a sufficient thickness of insulation for the roof can be a good barrier against the scorching heat.Properly insulated roof will provide coolness in the whole house even in the bright sunny day.


To answer the question of what to choose for the roof insulation, need to know its type.Roofs are pitched and flat, so that the exploited, and vice versa.

good insulation for the roof must have the following properties:

  • durability;
  • insulation;
  • soundproofing;
  • resistance to humidity;
  • vapor permeability;
  • biostability;
  • environmental friendliness;
  • fire safety.

Under these parameters roof of the house is protected from moisture, heat and prevent heat loss, allow room to "breathe" and will be safe for the owners themselves.

insulate most Built-up roofs.If there is a loft and it is not in use, the warmed only the floor.If the attic undeveloped room or attic, it warmed the room and stingrays.Flat roofs without attic, as well as pitched roofs, under which the right is a room, warmed mandatory.

Insulation for the roof should be a minimum thickness of 25 mm.Best option -100 mm.There are heaters and fiber mesh.They are fixed in the form of plates or applied by sputtering.

Fibrous materials for insulation ↑

Glass wool - a budget option ↑

Glass wool
main advantage of glass - cheap

glass wool insulation - the cheapest.With thermal insulation they cope.These are the main advantages.The rest - more disadvantages.They are difficult to use on sloping and straight on roofs.Glass wool is exposed to much strain and strongly absorbs moisture.

Therefore, it is necessary to fix the roof, and certainly well protected from getting wet.Ecological properties of glass also leave much to be desired.For eco-friendly materials include glass wool is not.

Shpatelnoe fiber for insulation ↑

For shpatelnogo fiber characterized by excellent thermal insulation properties and moisture resistance compared to glass wool better.Yes, and environmental security is much higher.In carrying out the installation of additional safety in mind, as is the case with glass wool, it is not necessary.Shpatelnoe fiber seals are used for thermal insulation of both internal and external structures.Suitable material for direct and pitched roof.Great weight of the material contributes to its further consolidation on the slopes.

Mineral wool insulation ↑

Plates and rolls of mineral wool
plates and rolls of mineral wool perfectly retain heat, eliminating unwanted noise are long, easy to install

This insulation for the roof has other names: rockwool, mineral wool or mineral wool.The basis of the material - basalt.It is heated and compressed to form a compact of the slab or mat.These boards have environmentally friendly, flame retardant, durability, environmental neutrality, good thermal insulation properties.This plates retain heat, saves from the noise, but allow the house to breathe, since they have a good water vapor permeability.Because of deficiencies in the mineral wool is present low moisture resistance.To avoid problems with shrinkage of plates, the loss of thermal insulation properties, the mineral wool should be further waterproofed to prevent the ingress of moisture.This material is also easy to install as resistant to mechanical stress and deformation.

Among the materials of this kind has proved most production companies Ursa (Germany), IZOMAT (Slovakia), Rockwool (Denmark), Paroc (Finland).

Easy secure cellulose insulation ↑

This is a very loose insulation material on the basis of secondary cellulose.It consists of 81% of cellulose, and apart from that it contained 7% of antiseptic and 12% nonvolatile retardants.Thanks antiseptics provided biostable material.Damage to the tree, he additionally protects it from decay and up to 100 years, extends the service life of structures.

Application of cellulose insulation
Application cellulose insulation is not the ceiling does not affect the weight of the building structure

Cellulose insulation is very easy and completely safe.Its components are completely non-toxic, and even in case of fire does not release toxic substances.The cellulose is added flame retardants, which effectively slows down the spread of fire.

also cellulose insulation has an excellent sound and thermal insulation properties.It allows the roof to breathe.But at the same time it must be further isolated from moisture.Material fit between the rafters on the roof with the help of the blowing installation, allowing to provide a seamless insulation.

Such insulation produced brands Isofloc, Climacell, Steico (Germany), EkoVilla (Finland), Isofiber (Norway), Ecowool (Canada and US), Ecowool (Russia and Kazakhstan), Yunizol (Ukraine).

Cellular materials for thermal insulation of roofs ↑

Practical extruded polystyrene ↑

Extruded polystyrene
Extruded polystyrene - a lightweight, relatively inexpensive material, to warm with the help of the roof can artist without experience

extruded polystyrene foam - the most proven material based on polymers.Today, it is a weighty competition for a long time familiar materials based on glass and mineral fibers.Expanded polystyrene (foam) transmits heat poorly, and thus contributes to the thermal insulation of the room.It does not create pressure on the supporting structures, as is lightweight.It is inexpensive, easy to cut and install, resistant to mechanical stress.

At issue are fire safety and the possibility of release of toxic substances during combustion.Now part of the expanded polystyrene is added chemicals that prevent fire.When using expanded polystyrene, it is important to arrange proper ventilation, as this type of material airtight.For roof insulation - it is not the best option.

Polyurethane - progressive insulation ↑

Thermal insulation of the roof with polyurethane foam
insulated with polyurethane foam inside of the roof and attic

This material solid materials occupy a small volume, and the main space - a gas microchamber filled with air or carbon dioxide.Polyurethane foam is resistant to mildew and microorganisms, moisture.He has a very good insulation properties.Terms of Service polyurethane reach up to 30 years.

They insulated attics and the inside of the roof.Polyurethane foam used in the form of plates (they need to additionally fix) and it is applied directly when the roofing.It saves, the installation is almost no waste.And spraying polyurethane applied to any surface, providing a seamless waterproof layer.

Video: insulation foam ↑

There are other foamed polymer materials.It penopropilena, foam rubber, Penoizol, foams and others.Choosing one or the other material for the thermal insulation of the roof, consider its advantages and disadvantages, type of roof, ventilation system.The correct material will last for a long time and effectively, creating in your home a good climate, keeping warm or cool, depending on the time of year.