Pros and cons of insulation of the ceiling with penofol, types of insulator and recommendations for its selection, technology for attaching the product to the ceiling. Ceiling insulation with penofol is the use of a new generation of coating to reduce heat loss through the ceiling. The material is very effective when the outside temperature is around zero. If the thermometer shows negative values in winter, a different type of insulator must be used in parallel. We will talk about the rules for using the product in various situations in this article.
Features of thermal insulation with foam foam ceiling
Penofol is a multilayer synthetic material, the basis of which is a canvas made of foamed polyethylene foam. It is considered not quite an ordinary insulator due to its specific principle of operation. Outside, the sheet is covered with aluminum foil up to 10 microns thick to reflect heat in the direction where it is needed. The presence of a mirror surface retains 97% of the heat.
There are several modifications of the product, which differ in the placement of the metallized shell on one or two sides and the presence of an adhesive layer.
The insulation has unique properties that prevent heat leakage through convection, conduction and infrared radiation. Other modifications do not have such a wide range of protection. It is able to replace several different insulators or one, but thick. For reference, the standard material thickness is 2-10 mm. There are more massive samples, but they are inconvenient to work with.
Penofol is used in household and industrial premises as the main and additional insulation. In addition to the main function, it solves the issue of vapor barrier. It is often used in baths, saunas, steam rooms.
The material cannot be fastened with nails or self-tapping screws due to a significant loss of reflectivity when the foil is damaged. Therefore, manufacturers recommend fixing it with an adhesive solution. The result is improved if there is a gap of 15-20 mm between the ceiling and the panel. Usually, after installation, a decorative overlap is made under the panel, but in basements, garages and industrial buildings it is left "naked".
Often used with other insulators such as foam. In such structures, the foam is first attached, then insulation is glued to it, and the whole "pie" is covered with sheets of drywall. The room will perfectly keep the temperature: cold does not penetrate from the inside, and heat does not come out.
Advantages and disadvantages of ceiling insulation with penofol
Today the product is very popular due to its versatility and easy installation. Masters also appreciate him for the following qualities:
- The material is lightweight, making it ideal for work at height.
- To lay penofol on the ceiling, no special devices are needed.
- The metal coating does not allow steam and water to pass through, does not absorb liquid and does not collapse under its influence, therefore it is indispensable in damp rooms, for example, in baths. It does not require additional protection with waterproofing and vapor barrier membranes.
- The material has several functions. Once attached to the ceiling, it not only retains heat in the apartment, but also dampens sounds transmitted through the air or through the ceiling. It is often used with other products to improve its thermal insulation properties. For example, in saunas, it additionally maintains the temperature by reflecting heat.
- Does not emit harmful substances when heated. In its production, the same polyethylene and foil are used that are used in the food industry.
- After installation, the distance between the floor and the ceiling is reduced slightly. A 1 cm thick canvas can be used instead of 8 cm mineral wool or 4 cm thick expanded polystyrene foam, so insulation is often used in rooms with low ceilings.
- The sheets are sold rolled into a roll, which facilitates installation work.
- The product does not burn and is often used in fire-hazardous premises.
- Rodents don't like him.
Penofol has few disadvantages. The negative factors include the high cost of the material and the need to use other insulation to improve the result. It is also glued to the surface to ensure the integrity of the coating, which increases financial costs. The material is soft, so it cannot be used if plastering or wallpapering is planned.
Penofol ceiling insulation technology
The product can be laid on a floor made of any material, but the operations must be performed in a specific sequence. A deviation from the technology of installing foam foam on the ceiling will reduce the expected effect. In addition to insulation, you will need glue to fix the insulator and metallized tape at the joints. The rules for choosing the components of the insulating "pie" are described below.
Select consumables
For reliable insulation, together with penofol, they buy glue for fixing to the surface and adhesive tape for connecting parts of the canvas.
There are several modifications of penofol that can be used to insulate the ceiling:
- Type "A" … Foil on one side only. It is usually used with other heat insulators as additional insulation.
- Type "B" … Foil film is located on both sides. It has proven itself well as the main heat insulator.
- Type "C" … There is a sticky layer that makes it easier to attach.
- Type "ALP" … The metal cover is protected with plastic wrap. Often they are laid on the floors of specialized premises - greenhouses, incubators, chicken coops. Foil-reinforced insulation is used in basements where it is not protected by a suspended ceiling.
It is not recommended to buy Penofol-2000. Its cost is low, but it retains heat poorly.
Before insulating the ceiling with penofol, check the quality of the product. Pay attention to factors such as:
- The goods must be manufactured in accordance with the requirements of TU 2244-056-4696843-98.
- The material is sold in rolls, the length of the product depends on its thickness.
- Tears and through holes are not allowed on the canvas.
- The winding of rolls is tight, without distortions. The goods are packed in plastic wrap, the edges of which are fixed with adhesive tape.
- Make sure the item is stored on racks or pallets at 20 degrees and 50 to 70 percent relative humidity. Storage of material closer than 1 meter from heating devices is not allowed.
Products must be labeled with the main data:
- Manufacturer's name;
- Basic dimensions;
- Date of issue and warranty period, usually the manufacturer allows storage of the material for no more than 1 year;
- Thermophysical indicators;
- Scope of the material;
- The protective layer on type “C” specimens should be easily peeled off.
For gluing to the ceiling, special or universal adhesives are used. The requirements for their composition are as follows:
- The tool is intended for indoor use. In the certificate of conformity for the glue, the degree of toxicity of the composition is indicated.
- Ability to withstand large temperature fluctuations.
- The solution contains antiseptic additives.
- Retains its properties for a long time.
- The composition does not contain solvents that negatively react to the material from which the ceiling is made.
- The tool takes into account the operating conditions of the room. For example, a sauna adhesive must be able to withstand heat and humidity. Such properties are possessed by MV-40. In residential premises, it is necessary to use a solution that is non-toxic and completely safe for humans. Usually they use “Universal” or “Express” adhesives, they dry quickly.
- Welcon Easy-Mix PE-PP 45 is intended exclusively for penofol. The only drawback is the complete drying time for 1 day.
For fixation it is also allowed to use the following solutions: 88Luxe; Nairit-1 (88-P1); Foam rubber-2 (88-P2); 88 Metal. If the area of insulation is large, take large packages of "Facade" and BOLARS substances. They are sold in bags from 25 kg.
To reliably connect the pieces of cloth to each other, the adhesive tape must have the following properties:
- The product is reinforced metallized with a sticky layer with a thickness of at least 20 microns.
- The instructions for use indicate its purpose - sealing and thermal insulation of the surface.
- The tape does not lose its properties when interacting with water and dust, it resists bacteria well.
- The tool has great strength and wear resistance.
- Retains qualities in the temperature range of -20 + 120 degrees.
Gluing penofol to the ceiling
The use of glue allows you to significantly reduce the time of insulation of the ceiling with foam foam from the inside. This method is inexpensive, since it does not require special devices, and is easy to implement. The sample is very light, so there is no need to calculate the strength of the adhesive bond. If the insulator is used as the main insulation layer, choose a thick product.
Perform the following operations:
- Remove loose plaster and decorative coat from the floor. Make sure the surface is level, if necessary, rework it with plaster.
- Scrape off mold and mildew, dry the area with hot air and treat with an antiseptic.
- Wipe oil and grease stains with solvents.
- Fill cracks in concrete slabs with cement-sand mortar.
- In wooden ceilings, fill small gaps with caulk, large ones with tow and foam.
- Cover all wooden structures with special means to protect against fire and decay. Apply new protective layers only after the previous one has completely dried.
- Remove any sharp items that could damage the foil.
- Treat the ceiling with a primer that matches the adhesive. Fulfillment of this condition will allow you to create the most durable connection.
- Prepare an adhesive solution. If the material has a sticky layer, it is sufficient to remove the protective cover.
- Apply a thin layer of the mixture to the surface without foil, spread it evenly over the surface. Passes are not allowed. Spread the edges of the sheet very carefully. Allow 5-60 seconds to thicken the mortar for better adhesion.
- Press the canvas tightly to the ceiling (or other insulation) and gently smooth it until it sticks. Glue the joints with reinforced tape. If it is not available, you can use a silicone sealant. Do not leave the joints untreated.
- When stacking, make sure that the sheets do not end in the corners of the room. Do not overlap the pieces. Also monitor where electrical wires and foil touch. Aluminum conducts electricity well, so check the insulation of wires close to the insulation layer.
- Install the false ceiling.
Laying penofol on a wooden crate
This option is significantly more effective than simple gluing to a flat surface due to the presence of an air gap. The gap also allows air to move between the ceiling and the insulation and remove accumulated moisture, preventing condensation from forming. The work is performed in the following sequence:
- Fasten penofol to the surface with wooden strips 15-20 mm thick. The distance between the bars is no more than 100 mm. Glue the joints of the sheets with reinforced tape. Make sure that the bottom of the rails is in the same horizontal plane.
- Fasten the second layer of foam foam from below to the bars using a furniture stapler. In this case, sheets with double-sided foil are usually used.
- Fit the second row of battens.
- Install decorative finishes such as MDF panels, plastic paneling, etc.
Combining penofol with mineral wool
When insulating in this way, most of the time will be spent on creating the lathing and aligning it in a horizontal plane. If the overlap is even, you can stuff wooden slats, if not, use metal hangers for plasterboard sheets.
The procedure for insulating the ceiling with penofol is as follows:
- Assemble a framework for the mineral wool slabs on the ceiling.
- Install fiber insulator into the cells.
- Fasten Penofol to the rails with self-tapping screws.
- Seal the joints of the insulation in any way.
- Sheathe the frame with plasterboard sheets.
- You can use two layers of penofol. Fasten the first with foil up, the second towards the room. This option will protect the mineral wool from moisture.
How to insulate the ceiling with penofol - watch the video:
[media = https://www.youtube.com/watch? v = zx8WiU-qxvI] Having studied the characteristics of penofol, we can conclude that ceiling insulation using this product helps to effectively protect the home from cold, moisture and external noise. Also, the owners will be pleased with the minimum cost of purchasing the components of the insulating "pie" and a slight decrease in living space.
