to build a truly heat-effective house, insulation is necessary to take care of not only the walls but also the roof.The best way to warm it is the creation of a multi-layer "cake" consisting of insulating material, vapor tight and waterproof film.This method involves the use of mineral wool, but there is another modern material that will make the process of warming the ceiling is much less time-consuming - it foam.It has a light weight and low thermal conductivity characteristics, so as popular with insulation of residential buildings.
- properties of the foam as insulation material
- Thermal insulation foam ceiling with his hands
- Mesh warming
- adhesive method
properties of the foam as insulation
ProcessCeiling insulation foam will depend on the type of roof.If you want to insulate the roof attic, the insulation is placed on the slope between the rafters.When the non-residential attic, it is best to in
Its main advantages have already been listed, and now dwell in detail on the other features of the material.
- foam has a low hygroscopic, which means that when they Ceiling insulation is no need for steam and waterproofing.
Important!If foam insulated wooden structure, the layer vapor barrier material is desired.Or all the joints between the tiles should be carefully filled with sealant or foam.
- Unlike mineral wool, it does not shrink over time, which eliminates thermal bridges.Throughout the period of exploitation it retains its thermal insulation characteristics.
- thicknesses of foam for insulating the ceiling of 5-6 cm is sufficient, which is much smaller than mineral wool.This is especially important for urban apartments where the ceiling height and so small.
- low thermal conductivity, which is 0.037 - 0.041 W / mK;
- foam structure remains unchanged over a wide temperature range;
- is highly resistant to the effects of biological and chemical agents;
- low hygroscopicity, placed in water, it is able to absorb only 0.5-1.5% by volume;
- not subject to the formation of fungi, mold and rot;
- good sound insulation properties due to the low dynamic stiffness;
- easy to install, has a lightweight and easy to cut.
short lifespan. manufacturer claims a shelf life of 10-20 years, subject to space technology warming.At its violation, time becomes less.
foam is dangerous in a house with poor ventilation. This is due to the fact that the foam is not vapor-permeable material, and therefore the indoor condensation will begin to accumulate.In this regard, it increased humidity, which leads to the formation of mold and mildew and the insulation efficiency decreases.All this is particularly dangerous for people suffering from allergies or asthma.The way out is to install ventilation.
In combustion emits toxic substances. In contact with fire, it does not burn, but melts, releasing black smoke dangerous to the health of the gas, which can cause respiratory paralysis.
When choosing foam, it is necessary to note that it has a certificate of quality.Buy it must be proven in large construction firms and shops.Unfortunately, the market there is a large amount of material made artisanal, not of high quality.
Any repairs and construction work begin with the calculation of the material.To determine the area of the ceiling is necessary to multiply the length by the width.For insulation foam used different thicknesses: 2,3,5 and 10 cm, but the ceiling is better to take the sheets with a minimum thickness of 5 cm with a density of 15 to NDE NDE-35.
To fix the foam plugs are sold with a broad hat and a special glue, but its cost is high.You can use a conventional cement-based adhesive.
adhesives mixtures and their consistency
Regardless of the adhesive manufacturer must take into account several important points:
- on the package should be written, that it is for EPS boards;
- depending on the manufacturer, the mixture is divided into two types: "gluing boards" and "gluing boards and device protective layer."The first type is cheaper, but is only suitable for mounting plates and filling the gaps between the insulation and the second more expensive, but it can be attached reinforcing mesh and used as a leveling layer.
Hint: it is not recommended to combine the compositions of different manufacturers.
Its consumption depends on the evenness of the surface to which the foam is attached.On average, he is sticking 5kg / m2, and the same goes even for gluing fittings and leveling layer.Each manufacturer specifies on the package for mixing proportions, but it is important to know some of the nuances:
- often the case that it is necessary to dilute the mixture is thicker than recommended by the manufacturer.The consistency it should be so thick that when applying it to trowel it retains its shape and is spreading;
- but for fixing mesh to separate a little thinner is better, then it will be easy to go deep;
- for the final alignment layer, the adhesive must be more liquid, liquid-like density of sour cream.
Thermal insulation foam ceiling with his hands
Before you mount a crate foam sheets should prepare the surface.To do this, carefully remove all the old paint or whitewashing the ceiling washed the dirt and dust.Then, if necessary, is aligned with the help of spatula and a primer.It is desirable to treat the surface of the antiseptic composition.
Important!All electrical work performed prior to installing the foam.
During insulation is necessary to observe the temperature regime, which should be between + 5C to + 30C.This will provide a reliable and high quality foam to the mounting surface.
Selecting the frame will depend on the financial capacity and the degree of humidity of the room in which insulation is made.For him, used wooden beams or metal profiles.
All of the foam are cut severely in size of cells, because the material over time, does not change its form.
First mounted transverse profiles with a distance of 50 cm from each other on the dowels.If you are sure to enjoy this level.Then set the transverse profiles of the same step.Between themselves, they are fastened with screws on metal.
foam can be fixed in two ways: by means of screws or glue.But regardless of the method chosen, absolutely all the gaps between the sheets zapenivayutsya.This ensures integrity, and as a result, protect against heat loss.
If crate mounted wooden beams, between the foam and the topcoat is placed vapor-proof film which protects the carcass against condensation.
The final step is to install drywall.For him installed metal profiles to which it is attached with screws on metal.
Here's a video of the ceiling insulation foam
When the limited financial resources and little time to repair, then the best option is to install ceiling insulation foam sheets without any adhesive structures crates.Buying a conventional adhesive composition for ceramic tile or fillings, instead of a special adhesive, further reduce the cost of the process.They are no less effectively cope with gluing foam to the ceiling surface.Yet, with this method of fixing is recommended to use also anchors with mushroom cap.
Sometimes the ceiling whitewashed with lime mortar, which can not be removed.In this case, its entire surface is thoroughly greased adhesive solution and allowed to dry completely.Only then you can start gluing the insulation.
Initially, the ceiling on a piece of foam is applied to the solution (it can be applied in dot or a notched trowel over the entire surface) and the insulation tightly to the surface.
For better fixing it is necessary to press firmly for a couple of minutes.And so, step by step, glued the whole area of the ceiling.After drying of the adhesive foam plugs, further strengthened by fungi.
Tip: if instead of polystyrene foam used ektsrudirovanny, it is necessary to make the surface more rough.In order not to lose time and do the furrows office knife, use a spiked roller to drywall or stiff wire brush.
Plug-mushroom consists of a broad cap and sleeve, which is hammered a nail.To make better use of insulation dowels with plastic nail, as it will not form an additional thermal bridges.
To install pre-drilled hole, somewhat longer than the dowel.Define its length simply, this stack thickness foam topcoat thickness, and penetration into the vapor barrier wall 5 cm. Thus, when the thickness of the insulation is 5 cm obtained: 5 cm + + 1cm 5cm 11cm = hence opening must be 13cm.
Settle dowels in the joints of sheets and 1 in the middle.On a sheet accounts for 5-6 fasteners.This will provide a tighter fit and level of insulation to the ceiling.
When driven anchors into the ceiling, his cap should be flush with the edge of the insulation.Once they are installed, the nails are hammered in them.As a result, cap plugs deep into the foam of 1-2 mm, which is considered the norm.If the nail is not completely clogged, and remains on the surface of a small part (under 1 cm), she just trimmed clippers.
Important!The sheets should be fastened in a staggered manner.
At the final stage of this phase, all the joints protruding sheets of insulation foam to float adjusted.
Before applying the finishing is necessary to make a reinforcing layer.To do this, use a special solution, which is applied to the foam evenly.The first layer is placed reinforcing fiberglass mesh, recessed therein and allowed to dry completely.Next, apply a second layer of the solution, and also left out to dry.
Due to its low cost, light weight and easy-to-use foam is very popular as a heater.But, despite all its advantages, insulate them from inside the room is not the best option.