Basic principles of home Insulation
The right choice of thermal conductivity of insulation makes the internal heat insulation works as effective as the creation of external thermal layer, provided that the heat barrier screen is properly placed.
Not every insulating material is suitable for insulating a house from inside. It must meet certain properties in order to achieve certain tasks:
- Low permeability.
- No emissions harmful to human health.
- Moisture resistance.
- Ability to hold the configuration under mechanical stress.
Types of Insulation materials
In order to avoid problems during the further operation of the house renovation or building, it is necessary to choose the right insulation. In addition to physical properties, it also has mechanical parameters. Within this attribute determine the following materials for insulating walls inside the house:
- Mineral wool – the product, available in rolls, produced in different thicknesses.
- Bulk insulation – material in the form of granules from foam, has a different configuration and size.
- Foam blocks – insulation, which includes foamed concrete, sand, bone glue and pine rosin.
- Plates – insulation material in the form of plates, which are made by pressing and bonding, have different size and thickness.
Insulation materials selection criteria
Before house walls insulation starts, it is necessary to get acquainted with the parameters by which these materials are subdivided. First of all, it is necessary to know the following features:
- Thermal conductivity. It must be sufficiently low.
- Mass. Lightweight products do not require additional fastening.
- Vapor permeability. The higher this property of the material, the more effective its application, as less moisture penetrates, and more dry walls remain.
- The possibility for further finishing.
- Also, it should have a long life, allowing replacement no more than once every 12-14 years.
Application of mineral wool
Mineral wool is one the most popular insulation material because of the technical characteristics. Its main advantage is the low cost and low thermal conductivity. And also the undeniable advantage of mineral wool is its versatility. It can be applied to any uneven surfaces of any shape: roofs, ceilings, non-standard openings in the walls.
Subdivided mineral wool into three types:
- Basalt.
- Glass wool.
All varieties of this insulation are united by one property: thanks to the intertwining of fibers, air spaces are formed inside it, providing a low level of thermal conductivity.
Insulate the walls from the inside with polystyrene foam
Making a choice between the material from mineral wool and polystyrene foam, you need to keep in mind next: This insulation has a small water vapor permeability, so it is not recommended to use it on the walls with high vapor permeability (timber, logs, porous concrete).
More efficient will be its use for insulation of walls made of bricks, blocks, having low water permeability. To glue this material is used adhesive mixture.
When fixing insulation, in addition to glue, use special nails with hats.
- moisture-resistant
- fireproof
- environmentally friendly material
- neutral to chemical influences
- ideal noise insulator
- light weight
Excellent performance when exposed to mechanical stress and at low temperatures.
Tips from professionals
- Vapor barrier will help if you make an airtight joint at the seams.
- The thermal insulation layer should not have a high vapor permeability parameter. If the wall has this parameter higher than that of the insulation material, steam will escape.
- To achieve full bonding of polystyrene foam with the wall, use the method of plaster overlay beacon and a method of alignment of the adhesive comb. This allows to bypass the air bubbles between the wall and insulation.
To avoid moisture on the walls, the house should have quality ventilation system – extractors and valves on the windows.
Conclusion
It is necessary to take all responsibility related to house insulation. Ideally, it should be done already at the stage of planning and construction of the house or renovation. And then, in the case of full compliance with the technology of all works on the installation of internal insulation on the walls, living in the house will be comfortable and safe.
