Choosing insulation for the ceiling

Choosing insulation for the ceiling

12 October 2017



To prevent heat loss through the ceiling, it is necessary to carry out the process of warmingTo prevent heat loss through the ceiling, it is necessary to carry out the process of warming What better insulate: roof or ceiling? Experts say that it is better to produce insulation of the ceiling inside. Before you start construction work you need to choose the right material and finish rough finish. What is the best insulation? The answer to this question can give no master, for each material to insulate the ceiling with its own advantages and disadvantages.


Polyurethane foam and ceiling

Polyurethane foam - a unique material that can be used to insulate ceilings in the country or a brick house. If you are looking for the cheapest method of warming a country house, the polyurethane foam - this is exactly what you need. Foil film costs about 2-3 times more expensive.

Mounting the foam may be applied in several ways. If the wall is not trimmed, it is necessary to spray the foam core with a thin layer on the frame. In the case where the walls and the ceiling is ready, with the help of mounting foam you just need to fill in gaps or micro defects.

Polyurethane foam allows insulate structures of any shape in a short timePolyurethane foam allows insulate structures of any shape in a short time

Algorithm applying foam to the ceiling:

  1. First you need to drill into the surface of the small holes.
  2. Then you need to seal with tape slots. This is to ensure that the material has not flowed out after will begin to expand.
  3. Fill the foam in the slot or frame. Make sure that it will be expanded.
  4. Allow foam to dry, and only then proceed to the finish trim.

Some insulation for the ceiling is better to use

If you have an attic, it is best to use any bulk material. For example, you can warm the house with the help of sawdust, glass wool, straw and expanded clay. Also good effect gives a cane.


Experts believe that it is best used for insulation of residential building material such as flax. He does not rot and is cheap. However, this material has a significant drawback - it is flammable. Absorb flax necessary layer 4-5 centimeters.

Fine wool insulates walls and ceilings, keeps heat in the living roomFine wool insulates walls and ceilings, keeps heat in the living room

Sawdust is also a good material, but their irrational use, as they are flammable. In addition, chips are often hit the spot rodents. Use the straw can be only under the condition that the attic is not installed any heat sources. LECA is a convenient bulk material, since it can be laid on top of the concrete slab.

The technology Ceiling insulation bulk material:



  • First you need to put on the floor of the attic kraft paper.
  • Lay on top of the bulk material.
  • Then lay the board. They are needed to the attic could move.

Thermal insulation of the ceiling with polyurethane foam and polystyrene foam

If you're looking for a cheap foil material that you can use with polyurethane foam. This material does not deform under the influence of heat and has high thermal insulation properties.

Polyurethane foam must be applied to the ceiling by spraying. In this case the indoor air temperature must be at least 10 degrees. Before sprayed material should be cleaned ceiling from dirt and dust. It is also recommended to degrease the surface.

Expanded polystyrene - a modern, low-cost, environmentally friendly insulationExpanded polystyrene - a modern, low-cost, environmentally friendly insulation

Also for the insulation of the ceiling, you can use polystyrene foam. When using this material there is no need to produce an additional vapor barrier. In addition, polystyrene foam does not lose its insulation qualities over time.

The sequence of thermal insulation polystyrene ceiling:

  1. First you need to clean the roof from dirt.
  2. Thereafter lay styrofoam slab in the space between the beams.
  3. The gaps between the plate and the beam with the help eliminate foam.
  4. Cover the ceiling boards.

What more insulation for walls and ceilings can be used

What other materials can be used for thermal insulation of walls and ceilings? If desired, use or penotermom penofolom. The density of these materials is high enough. Because of this, and penoterm penofol are useful for insulation of ceilings inside.

If you want to buy an inexpensive material, it is recommended to stop the choice on penoterme. This material is relatively fire-resistant and durable. For finishing ceilings recommended penoterm thickness of 5 millimeters.

Foil penofol - durable, self-adhesive material used to prevent heat loss in the roomFoil penofol - durable, self-adhesive material used to prevent heat loss in the room

Installing penoterma made in 3 stages:


  • First you need to attach to the ceiling penoterm.
  • Then you need to fix stuff with nails.
  • Then should stick tape on the joint line.

Mounting penofol performed similarly. This material is a bit more expensive penoterma, however, it has the best performance.

The advantages penofol include:

  1. Low specific gravity.
  2. Low thermal conductivity.
  3. Durability.

What you need to lay a layer of insulation on the ceiling

When selecting insulation layer thickness is necessary to pay attention to the size and density of the material. If you use web materials, such as penoterm or penofol, the thickness of the insulating layer should be approximately 3-6 millimeters. If you are using styrofoam, the thickness of the layer should be at least 12 centimeters.

Thermal insulation of the ceiling space with the help of expanded clay will not only protect the home from the cold, but also significantly reduce the financial cost of heating homesThermal insulation of the ceiling space with the help of expanded clay will not only protect the home from the cold, but also significantly reduce the financial cost of heating homes


When using a granular insulating material layer should have a greater thickness. If you use sawdust, expanded clay, straw or flax, the thickness of the insulation should be 3-5 cm.

When choosing the optimum thickness of the layer should also be taken into account:

  • Availability of heating in the attic.
  • The density of the material.
  • A method of finishing the ceiling.

Choosing a non-combustible insulation for walls and ceilings

What is non-combustible material is best to use? It is best to use concrete block. This material is made of clay. This material should be covered with a layer of 3-5 cm. Optionally, expanded clay over the crate can be set.

Scheme cellular glass insulation of flat roofsScheme cellular glass insulation of flat roofs

The best non-combustible material is foamed glass. This material has high moisture-proof properties and is not subject to combustion. Foam glass is not subjected to deformation even at an air temperature of 500 degrees. Alternatively, you can take advantage of basalt insulation.

Fire-resistant materials the following companies made:

  1. Isover. Insulating materials made by this company have a low specific weight and good elasticity.
  2. Technonikol. The company produces fire-resistant basalt insulation. This material can be used for walls and ceilings.
  3. Ursa Geo. The company is engaged in manufacturing of inexpensive fire-resistant materials.

Warming via foam (video)

How to use a heater up to you. Each material has its own characteristics. If you want to choose an inexpensive heater, prefer expanded clay or mineral wool. These materials are fire-resistant and durable. With an unlimited budget the best choice would be a polyurethane. However, this material can be applied to the ceiling only by means of special equipment.

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