Everyone understands that when heated air rises.According to the laws of physics, the greatest heat loss in homes will be through the roof.Based on the huge number of advantages of using the foam for insulation roof, we can safely say that this will be the best option preserve heat in your home, as well as fencing yourself from fungus and external noise.Therefore, we will describe in this article how to organize a foam roof insulation.
- Advantages of foam insulation as a
- roof insulation foam with your hands
- material procurement
- Preparing roof
- Creating a vapor barrier
- Mounting plates foam
- Stacking waterproofing material
Advantages of foam likeinsulation
quality insulation inside and outside to protect the roof from external influences such as changes in temperature, thus avoiding the appearance of cracks in the roofing materials.Insulate the inside roof recommended by the attic.Proper design of a roofing pie includ
In the role of insulation foam used often enough.This lightweight material white color that is 98% of the air bubbles enclosed in a shell of polystyrene.Depending on the method of production, the foam is conventionally divided into two categories: pressing and bespressovy.Before heat insulations foam has many advantages:
- light weight for easy transportation of the material and not allowing to strengthen the supporting structures of the roof.
- Environmental safety, proven by the fact that it is used in the food industry for the manufacture of packaging products and in the manufacture of toys.The foam is non-toxic and non-toxic compound: it has no smell, the processing does not emit dust and does not cause skin irritation and allergies.
- low coefficient of thermal conductivity, since it also contain a lot of air, and the air is the best insulator.
- good insulating ability, so with proper roof insulation foam is no need to carry out additional measures for wind protection.
- Long useful life, because the foam is not subject to aging and the passage of time is not destroyed, but its quality is not degraded.Plate size foam remained stable throughout the period of use, not decrease, do not sit down and do not move in the structure.
- high moisture resistance, which is much lower than that of mineral wool, allows to apply the foam even in a humid environment, it does not lose its insulating properties.
- biological resistance.Foam on the surface does not form a growth medium for the growth and reproduction of microorganisms and harmful bacteria does not grow moldy, rot, preet, unlike natural organic materials.
- Chemical ustroychivost.The foam is chemically stable - not responding to paints, adhesives, silicone, gypsum, cement, asphalt, lime and other chemicals and aggressive media.
- high level of water vapor permeability, allowing the roof "breathes" and the evaporation of excess moisture that has accumulated on the inner side of the roof.
- more resistant to changes in temperature, causing the foam does not change its structure, that allows to use this material for thermal insulation of roofs in different climatic conditions.
- resistance to loads, long and short, is significantly higher than that of mineral wool.
- Fire: foam on contact with open flames melted, but a flare-up occurs, since in its composition contains special additives that give it fire-resistant properties.
- Ease of use, because to work with foam does not require expensive tools, it is easy to handle and cut with an ordinary knife.
roof insulation foam with your hands
foam roof insulation can be realized in different variants roof constructions.In most cases, the insulation material is used on flat roofs exploited.Also, they can be insulated and pitched roof, although experts recently for these purposes are advised to choose a mineral or glass wool.Remember that foam at the same thickness is more effective than any mineral wool.
begin the process of roof insulation foam inside and out is a careful selection and purchase of thermal insulating material.Before the procedure of warming should certainly ask whether the attic floor to withstand expected loads.Therefore, the need to adhere to the manufacturer's recommendations relating to the density of the foam.
brand foam PSB-S-15, which has a density of 15 kg / m3 (PSB15) and a thickness of 50-100 mm, characterized by high moisture resistance and low density.However, the material is quite brittle and is used in areas where high strength is required.This foam is designed for ceiling, roof and pitched roofs.
foam PSB-S-25 with a density close to 25 kg / m3 (PSB-25) and a thickness of 50 to 100 millimeters is a universal insulating material used for thermal insulation of the floor, facade, interior walls and roof.It is used for the walls of the attic.
Styrofoam brand PSB-S-35 is characterized by high mechanical strength, it is ideal for installation in harsh environments.Material brand PSB-S-50 is used for thermal insulation of exterior surfaces that are constantly exposed to mechanical stress.It is suitable for flat roofs, attic ceilings and floors where the assumed significant load.
It is necessary to calculate the thermal insulation of the roof and the amount of styrofoam plates to cover with this material has turned the whole roof area.It is worth to buy the stock in a few panels.In order to reliably insulate the roof, besides the main component, you also need a reliable waterproofing material that serves as the basis for the foam, gravel and geotextile, which is covered with insulation.
Following the acquisition of these materials need to deliver them to the place of work.When transporting, you keep in mind that the foam is sensitive to external conditions, and transport it is recommended with caution, avoiding mechanical shocks, direct sunlight and moisture.In this connection it is advisable to order foam home.
The first step is to check the work of the rafters for the presence of various defects.It is necessary to see whether they are susceptible to the effects of moisture and rot.Beams that are rotted at the time of the roof insulation directed, is replaced by installing in their place new, and processed using the fire chemical composition and antiseptic.
Also, if the roof is wooden, make sure that all planks and beams were damaged by insects, and that never formed gaps.If necessary, treat the wood with special fastening and disinfectant materials.
If the roof is flat and made of concrete blocks, you should inspect it for cracks, leaks and other defects.If they are, then remove them by means of glossing over cracks using cement-sand mixture, and place of leakage - waterproofing.
Very often in homes equipped attic space under the living room (attic).Such modernization in most cases subjected to buildings with gabled roofs.In this case, it is important to comply with the minimum pitch of the roof, the angle must be at least 25 degrees, which ensures free flow of water from the roof into the gutter.If the angle to do more, the roof structure can get unreliable.
Creating a vapor barrier before
roof insulation foam it must paroizolirovat.This procedure is necessary to prevent accumulation between the insulation material and the roof condensation.If you apply the foam from the inside without creating a vapor barrier, then the temperature difference from the inside and outside of the roof there is a heater in the moisture that gets into the pores of the insulation and freezes.
If wet foam freezes, the water expands, destroying the insulation material.Therefore, according to the technology of roofing insulation, vapor barrier should be mandatory.The vapor barrier coating as conventionally used foil or film.When installing a vapor barrier should pay attention not to leaky side facing the truss construction.
Mounting plates foam
from a cold attic or attic can be made bright warm room just a few days.If the warming will be in the process of construction of the roof should fill below the rafters crate that serves as a support for the foam plates.When laying the material must be adhered roofing insulation thickness for a specific region.
In carrying out such calculations must take into account, in addition to climatic zone and used roofing material.But in any case it is not recommended to lay the material, the thickness of less than 100 millimeters.If one layer of foam is small, and the two layers exceed the height of the size of its rafters, then you have to build them, as mounting plates will be problematic.
foam is placed between the rafters from the inside, keeping a certain distance between the plates - close to 5 mm, but not more than 10 millimeters.If you do not leave these spaces while insulating foam roof, the plate in the process of shrinking residential building will emphasize each other and as a result of this burst.
If mounting foam was not entirely smooth and heat-insulating material between the plates are formed too big gap, they must be carefully sealed.The same operation recommended to be done in places where the parts adjacent to the thermal insulation of the roof construction.To fill the gaps often use assembly foam, which is applied through the use of a special gun that allows qualitatively repaired all interfaces and joints.
Attach the foam plate with wooden slats, fungus or adhesive mounting.Methods of bonding the foam to the surface of the plates is preferable.Less commonly used for this purpose dowels or nails.But over time, adhesives lose their adhesive properties, and therefore decided to combine the plates sticking with their fixation on dowels or nails to increase the reliability of fastening of the foam.
often in need of insulation and attic floors.In this case, you must do the same: to clear the overlap of debris and old filling, put the vapor barrier.Sheets of foam laid out on the ceiling, and then all joints zapenivayutsya.If you plan to turn the attic into the living room, then lay on top of the insulation is a coating that can withstand the weight of the occupants, sanitary equipment and furniture - parquet board or laminate.
Stacking waterproofing material
After you have placed and well secured slab foam, the scheme laying roof they need to close the top of the waterproofing material.For waterproofing, you can use an ordinary roofing or new materials manufactured on the basis of polyethylene foam.Waterproofing will protect the plate from harmful influences.
One of the most effective waterproofing materials that are used in roof insulation foam, geotextile acts.Such a coating reliably sensitive foam covers and protects against various external threats, which include moisture, mechanical impact and ultraviolet.Put on the foam layer of geotextile, it must be attached to the back of the rafters with wooden slats.
with the exception of tension waterproofing material, well, if it will be a little slack.Such specific coating has its own peculiarities, which lead to some inconvenience at roof insulation foam.Since the geotextile is characterized by high density and moisture does not pass, there is always the risk of the formation on the inner side of the fabric a certain amount of condensate.
similar phenomenon in the foam can not influence the nicest way, so you need to take provisional measures to avoid this.The most effective method of avoiding condensation is considered superimposition geotextile to a special crate, but not close to the layer of insulation.This crate provides the necessary ventilation of roof space between the covers.
On top of this cake roofing should be done with the help of concrete screed concrete, which has a fraction of 16/32, or pour a layer of gravel, which has a thickness of nearly 5 centimeters.However, the thickness of this layer must first be calculated from the force of the wind in your area.You can then start making crates for laying roofing.
When you finish the installation of the roof with insulation from the inside of the roof to do fine finish of the lining, gypsum boards or plastic panels.If you plan to build a coating of putty, then the heat insulating layer must first stick the reinforcing mesh.Only a competent roof insulation using the foam will ensure the creation of a comfortable indoor climate!