Styrofoam is often used to insulate the ceiling. The material is affordable, protects well from the cold and at the same time does not take up much space. Other pros and cons of this insulation, as well as installation work, are described in the material presented.
The content of the article
- Pros and cons of foam
- Which foam to choose
- Glue mounting
- Frame method
Pros and cons of foam
Styrofoam on the ceiling is a common material for insulation, since it provides good thermal insulation and at the same time does not take up much space. For comparison, it can be noted that a 5 cm layer of material retains as much heat as other heaters of this thickness:
- concrete 200 cm;
- brick 85 cm;
- mineral wool 9 cm;
- tree 18 cm.
Along with excellent protection from the cold, foam ceiling insulation provides a number of other advantages:
- convenience and ease of installation;
- light weight;
- complete security;
- additional soundproofing;
- does not take up much space, which is especially important for a ceiling of low height;
- serves at least 20 years;
- ecologically pure;
- does not absorb moisture.
However, the foam for the ceiling has several disadvantages:
- combustible, releases toxic substances during a fire;
- does not pass moisture;
- may crumble;
- not resistant to solar radiation;
- may suffer from rodents, but this is irrelevant for the ceiling.
Which foam to choose
Before you figure out how to fix the foam, you should carefully select it in size. One of the main parameters is the thickness:
- 100 mm is suitable for processing an uninsulated room;
- 50 mm - optimal for the ceiling;
- 20-30 mm - also for the ceiling (in the presence of external roof insulation).
As for the dimensions, here you need to focus on fixing the penoplex to the ceiling. Basically there are 3 types of blocks:
- 0.5 * 1 m - suitable for typical small apartments;
- 1 * 1 m - for private houses;
- 2 * 1 m - when working with large areas.
Finally, there is also the density indicator. It is connected with what kind of room it is planned to insulate. If work is carried out with the ceiling from the inside, 15 kg / m3 is enough. For external processing, take 25 kg / m3.
The foam is fastened in 2 ways - on glue and in the frame. In the first case, it is important to carefully prepare the surface, in the second - to make a frame and fix it. For work you will need such tools and materials:
- dowel umbrellas;
- spatulas for applying glue;
- adhesive composition;
- construction level;
- set of drills;
- knife with a sharp blade.
Thermal insulation of the ceiling with foam plastic in a private house using adhesive technology involves the following steps:
- If the ceiling is even, it is simply coated with adhesive or putty. You can also use regular tile adhesive.
- Glue is also applied to the foam itself, after which it is fixed, moving from the corners to the center.
- If the surface is initially uneven, the foam ceiling may look ugly. It is recommended to prepare the surface, clean it from dust, then go with sandpaper.
Another option for insulating the ceiling with foam is to make a frame. The main steps are:
- Clean the surface of the old finish.
- If the irregularities are large, plaster and rub.
- Treat with a primer composition with an antiseptic.
- After drying, make a wooden crate. Together with the rails, you can use a metal profile.
- According to the pre-prepared markings, strengthen it on the surface with the help of dowels-umbrellas and metal spiers.
- Lay foam and vapor barrier.
- Then do a clean up.
Insulating the ceiling with foam is quite simple. This requires only improvised materials and tools, and you can work independently. Tiles can be simply glued to flat surfaces. But frame structures are more durable and durable. When designing, you need to carefully prepare the markup and assemble the grate, fixing it on the ceiling.