Today, plastic windows are installed everywhere, as they reduce heat loss from the room. But so that in the future there are no problems during operation (draft, cold), it is necessary to carry out preventive work from time to time. However, this is not always a solution, as there are many reasons why it is blowing from plastic windows. If you determine which of the factors takes place in a particular situation, you can correct the situation.
The main causes of heat loss through windows
If you feel a draft from the window, you should consider the problem from different angles:
- Manufacturing defect. Quality control of products must be carried out in production. But the human factor and adverse storage conditions cannot be ruled out. This means that temperature extremes, cold, moisture and direct water can affect the properties of the metal. plastic window or its accessories. If a double-glazed window with such characteristics was installed in a house or apartment, then there will be a draft coming from the leaks of the deformed profile. This also includes the use of materials and accessories of poor quality. One of the most common causes is poor quality sealing rubber. Over time, under the influence of external factors (temperature changes, cold, moisture), it cracks. Therefore, you should not save when buying windows.
- Errors during installation. Today, there are many organizations offering services for the installation of window and balcony blocks. If you choose the wrong office, then as a result, the draft will become the eternal companion of the residents. This will be facilitated by poor insulation of slopes, errors in installing the window sill, cracks and leaks in different areas.
- Lack of preventive maintenance throughout the entire period of operation. This includes cleaning the seal from dust, which affects the tightness of the sash and the life of the rubber. In addition to that, window fittings should be periodically adjusted: once every six months or a year.
How to determine the source of a draft
If cold comes from the window block or air flow is felt, what should I do in this case? First of all, you need to determine where the draft comes from.
To solve this problem, you need a lit candle / lighter. You need to bring it as close as possible to the window frame and observe the behavior of the flame.
Strong fluctuations in the fire are evidence that the problem exists and is indeed blowing from the plastic windows. If the flame practically does not fluctuate, then the cause of the draft is different, and everything is in order with the tightness of the window block.
The feeling of cold takes place for a number of reasons: single-chamber double-glazed window, insufficiently warm battery. In winter, the window becomes cold, the air in the room comes into contact with the surface of the double-glazed window and cools down. Hence the cold feeling.
In this case, nothing needs to be done, since in fact the tightness of the double-glazed window is not broken. It is recommended to compensate for the lack of heat from the battery with a heater.
Solution
Some problems can be completely solved on your own, while others are eliminated by professionals. If the windows are still under warranty, then it is better to invite the masters.
Such a solution does not require additional costs and is more reliable. Otherwise, you will have to do everything yourself or look for third-party masters.
Source of draft - loops
First you need to determine the cause of this phenomenon:
- low-quality fittings;
- installation errors;
- loose filling of holes for fasteners.
If cheap fittings are installed, then there is only one way out - replacement. There are no other options in this case. In situations where the installation was performed with errors, it is recommended to carry out preventive work (adjustment).
Considering that over time a window or a balcony door “sags”, it is also recommended to adjust the fittings with some frequency.
There is another point that can cause a draft. These are technological gaps when installing a mosquito stack or holes for its fastening. If it was removed for the winter, the holes must be closed. It is allowed to do this with the help of improvised materials.
The area where the frame is attached to the window sill
In this case, there must have been a clear violation of the window installation technology. In such situations, it most often turns out that at the stage of installing the window block, an insufficient amount of mounting foam was used. When the tide breaks, it may happen that there is almost none there. This factor not only affects the quality of the installation, but also the tightness of the structure.
The solution to the problem is to dismantle the ebb from outer side window. The old foam is removed and the open area is foamed again. Then the tide is put in place.
It is better to do this for professionals, and proven ones, so that in the future you do not have to solve the same problem again. If the draft is insignificant, then you can try to eliminate it, using a sealant in the area where the frame fits to the window sill.
Cold source - slope
The main disadvantage of polyurethane foam is its destruction under the influence of external factors. This means that all seams when installing windows must be carefully puttied. Therefore, a draft from the slopes can occur against the background of the destruction of the mounting foam in the seams. What to do in this case? You will have to disassemble the slopes and re-fill the mounting seams with foam.
You can influence the outflow of heat from the room by adjusting the window clamp and fittings. In the first case, by means of a hexagon, they act on the eccentrics (there are 3 of them) located on the end side of the window.
Depending on where they are turned, it will increase (left direction of movement) or, conversely, decrease the clamping force (right direction of movement). Fittings are adjusted different ways, which is affected by its type.
If it blows from the window handle
This may mean that the mechanism has ceased to be effective, as a result, leaks form between the leaf and the block. You can solve the problem by tightening the handle fasteners hidden under the decorative strip.
If that didn't help, old pen must be dismantled and replaced with a new one. You can open the attachment points by turning the decorative strip 90 degrees.
other methods
If various solutions have been tried and all to no avail, all two ways remain:
- insulate slopes;
- seal the cracks in the windows with adhesive tape or a sealant on an adhesive basis.
Can be used as a heater different materials: Styrofoam, mineral wool, expanded polystyrene, fiberglass. You need to choose based on the correspondence of their properties (moisture resistance, efficiency level, etc.) to the operating conditions.
Considering that the thermal insulation will be located in a small area, an important selection criterion is the thickness of the material. The insulation is glued to the surface with a mounting adhesive, the surface is puttied, after which the structure is painted.
Thus, if it blows noticeably from plastic windows, there can be many reasons, starting with a manufacturing defect and ending with the lack of timely preventive maintenance. It is important to correctly identify the problem, otherwise all actions to eliminate it will be in vain.
However, there are situations when none of the effective measures brought results. In this case, you need to either insulate the slopes, or glue all the seams with tape / insulation with an adhesive base.
Winter is a wonderful time of the year. It brings with it many good holidays and joy. However, it is in winter that a fairly common problem of plastic windows can manifest itself. It's about the draft. In the warm season, the owners rarely pay attention to the fact that it is blowing from the window. In winter, it is impossible not to notice. If draft in an apartment with plastic windows, then this problem must be solved. Otherwise, the room will not only blow, but the temperature will drop to “uncomfortable”. And here it is not far from diseases.
Yes, the problem, of course, needs to be solved, but you should start by finding out the reasons for its appearance. Everything is more complicated here. It only seems that to understand why a draft appeared in pvc windows, easy. In fact, there is something to think about here.
In this article, we will talk with you about what can cause a draft from plastic windows. So let's get started.
Is it blowing from the window?
Before you grab your head and call all the craftsmen in the city, you should make sure that it really comes through the window. It happened that people came to us with a draft problem. However, the master made a diagnosis - thin plastic windows.
Turning to an unknown company for the installation of PVC windows, you take responsibility for almost everything. Yes, it is you, and not the company to which you applied and paid the money.
In one region of our country it can be cold in winter, and in another it is simply cool. Insulated plastic windows are provided for one region, but not for another. A company that performs its work in good faith will always tell its client which metal-plastic structures he needs to install.
So, back to thin plastic windows. In winter, an illusion can be created that it seeps through. But in fact the glass is cooling, and air circulation begins to occur inside the room.
In order to detect a draft, you can use an ordinary candle, match or lighter. It is necessary to move fire around the entire perimeter of the window. If the flame does not sway, then it will not see through anywhere. Accordingly, if it is, then problem areas can be identified.
As a rule, plastic windows let in a draft in two places: between the frame and the sash; between the frame, slopes and window sill. It depends on where it leaks, what kind of repair is needed for the metal-plastic structure.
Draft from plastic windows: reasons, what to do?
What is the reason why it shows through between the window frame and the slopes? The installation company made a number of mistakes. If this window is under warranty, then it is better to call this very company and demand that the problem be solved. The fault here is not yours, but the masters who carried out the installation. In the event that the warranty period has ended, you will have to choose: or solve the problem yourself, or seek professional help.
The Teplo Doma company offers its services to eliminate drafts from plastic windows. Our masters very often face similar problems and know everything about it. You can contact a specialist and discuss all the conditions right now.
If, nevertheless, a draft appeared between the sash and the frame, then there may be several reasons.
Adjustment
Incorrect adjustment will always show up. When the window has been adjusted incorrectly, over time it may cease to perform its functions fully. As a result, for no apparent reason, a draft appears in an apartment with PVC windows. It even happens that the fittings were initially adjusted correctly, but regular maintenance was not carried out for several years. As a result, it began to bleed through the window.
How to solve this problem? If the cause of the draft is indeed in improperly configured fittings, then adjustment should be made and the problem will be solved.
Installation
When unskilled craftsmen are engaged in window installation, mistakes are often made. For example, the cause of a draft from a window may be a violation of the geometry of the window structure. As a result, the sashes do not adhere well to the window frame, and this, in turn, can cause drafts.
sealant
Perhaps the most common cause of drafts from plastic windows is rubber seal problem. It may be old, poor quality or just dirty. When the window seal fails, the sash no longer fits snugly against the frame. As a result, a draft breaks into the room. If for this reason it bleeds through a plastic window: what should I do? Everything is simple here: and the problem will be solved immediately.
plastic profile
Surprisingly, but plastic profile, from which the double-glazed window is made, can also cause a draft. Due to temperature changes and exposure to ultraviolet rays, plastic of poor quality may burst. As a result, from the resulting gap will begin to see through. In most cases, repairing such a window does not make any sense. Required here
It is generally accepted that replacing a traditional wooden frame with a modern PVC profile immediately eliminates drafts, ice formation, and freezing. However, after the onset of cold weather, many begin to notice something was wrong: it still blows from plastic windows. Why is this happening? And most importantly, how to eliminate this shortcoming?
Mounting quality
The first thing that comes to mind is the negligence of the installers. Indeed, the dishonesty of installers who did not bother to carefully fit the frame, poorly foamed the joints or made other technological errors, very often causes subsequent heat loss. But sometimes we ourselves strive to save money by choosing a cheap but low-quality profile. Or we choose a single-chamber double-glazed window, which does not cope with its task of keeping warm in the conditions of Russian winters. Yes, a lot depends on the hardware.
accessories
The reason that cold air blows from plastic windows is unreliable fittings. It is she who is responsible for the looseness of the fit of the valves when locking. Sometimes it is enough to replace low-quality fittings, and the problem will be resolved. Sometimes no replacement is required. You just need to adjust the existing system.
Now they produce designs that are designed for two modes: winter and summer. The first option is characterized by a denser clamping of the valves. If your master has not explained to you all the features of the adjustment, then you will have to deal with this issue yourself.
First of all, inspect the sash around the perimeter. You will find round or oval elements, which are called "trunnions". These details are just responsible for the clamp. The pins must be simultaneously moved to the maximum position by moving in a clockwise direction. The operation must be performed. For the procedure, you will need pliers or a screwdriver (this depends solely on the type of fittings). Be sure to turn all pins. Otherwise, you will break the structure.
Some manufacturers have taken care of automating this process. Their accessories are equipped with a special roller on which the ring is located. Rotating it, we easily change the modes from summer to winter and vice versa. In the winter version, the handle starts to work harder, the sashes are tighter, and the problem of what blows from the plastic window disappears in the blink of an eye.
Let's take care of the compaction
To eliminate drafts, take care of a good profile seal in advance. Otherwise, low-quality rubber will simply crack with the onset of severe cold weather. Yes, and a completely solid seal can eventually become completely unusable.
Therefore, if you notice that it is blowing through plastic windows, then immediately check the condition of the rubber cord. And if defects are found, immediately change it. This procedure is simple. She is quite capable of handling it on her own. Or just call the master at home.
When choosing new gaskets, take a closer look at commercially available ones. They have excellent thermal insulating characteristics. And one more thing: before gluing a new gasket, do not forget to thoroughly wash the profile from dirt.
The quality of the seal is also affected by such an inconspicuous structural element as a glazing bead. It ensures the tightness of the glass to the profile. The stalk also needs to be replaced. In addition to such a drastic measure, you can try to fill the gaps between the frame and the double-glazed window with silicone. Or resort to an effective "grandmother's" remedy - to paste over the gaps with thick tape.
From all the cracks
Why does it blow from plastic windows even when the seal is in order, and the glazing bead is not bad, and the fittings lock the sashes tighter than ever? In such a situation, it is necessary to check whether drafts penetrate from the side of the slopes. The fact is that the space between the wall and the window structure, according to the technology, is foamed with mounting foam. A special polyurethane composition is introduced into the gap by means of a gun or a bottle with a tube, where it rapidly increases in volume and solidifies. The excess is then removed with a knife.
If little foam is added, this leads to the formation of voids. And this is the direct reason that blows from plastic windows.
The mounting seam is not eternal. After five or eight years, the foam begins to slowly break down. There comes a need to remove the slopes, buy cans of mounting foam and re-fill the gaps with the composition. After that, return the slopes to their place.
Blowing from under the plastic windows
Under the windowsill sometimes there are similar gaps. Again, this is either a result of saving foam at the stage of installation of the structure, or simply wear and tear. In any case, it is necessary to disassemble the window sill and restore the tightness.
As a preventive measure, it does not hurt to take additional measures to warm the space under the windowsill. Just buy a sealant and carefully apply it along the seam between the PVC structure and the wall.
To polyurethane foam does not break down too quickly when exposed to moisture, it must be protected. Silicone works well for this. vapor barrier film. They protect the wall from moisture and prevent fungi and mold from developing.
Check loops
Sometimes you can find that blowing from the hinges of plastic windows. Why is this happening? In search of an answer, you will have to explore outside frames. Look for additional holes. These, most likely, will be technological gaps for attaching a mosquito net to a window. They are not needed in winter, so we close them until summer.
We hope that now you have received the necessary clarification about why it blows from plastic windows. And like any problem, this trouble is better to warn in advance. Meticulously choose a company for the installation of PVC structures, no less meticulously select a profile, fittings. Check the quality of the installation. Don't forget to ask warranty service windows. So it will be easier and cheaper to eliminate the detected defects. And also follow the rules for the operation of plastic window systems, monitor the condition of the seal, and eliminate the problems that arise in time.
Having considered in the previous publication the question of why the windows are crying and how to deal with this phenomenon, we have prepared another material for our readers, which will undoubtedly be very useful. Repair of plastic windows is exactly the topic that we will cover today.
Often, owners of PVC structures are faced with the fact that the opening handle is blocked or it breaks altogether. As a rule, for the elimination of such malfunctions, the masters require payment and often the cost of their work is beyond the reach of a person. In such a situation, you can save a lot by repairing plastic windows with your own hands without the participation of a specialist.
In addition to the above problems, there are many other cases when the design requires debugging. In this article, we will look at the most popular types of breakdowns and self repair plastic windows in general.
If you notice a similar phenomenon, try to eliminate it by manipulating the cams of the trunnions. In the event that Roto fittings are used in the design, you should pay attention to frame strikers - taking a four-point hex key, find the corresponding element in the middle (see image 1). By turning the key, you can do fine-tuning, thus solving the problem that has arisen. The direction of rotation is determined by the "scientific poke method".
In that situation, if the window is equipped with Winkhaus fittings, grab the lock with two fingers and pull the eccentric, turning it in the right direction (see image 2).
If any other fittings are installed on the window, with the exception of the above, then you need to pay attention to the trunnions (moving rollers on the sash with a hole for the “four” hexagon). On the edge of such a trunnion, you can see the risk (see image 3) - bringing it closer to the seal, you can adjust the pressing force of the sash. The closer it is located to it, the tighter the clamp will be. It should be noted that in the summer period the roller must be returned to its original position. Otherwise, the seal between the frame and the sash wears out quickly.
You also need to look at the position of the movable rollers relative to the counter plates on the frame. There is a possibility that the latter may be set incorrectly. Thus, the trunnions do not go behind them when closing. In such a situation, you need to rearrange the counter plates. To do this, you need to loosen the screw that fixes the plate on the structure and move it a little lower so that the trunnion can completely go under it. If you are unable to solve the problem by adjusting the eccentrics, it would be wise to seek help from specialists - self-repair of plastic windows in such a situation will not bring anything good. However, usually the above measures help to solve the problem.
A similar problem can be observed not only on rotary, but also on swing-out doors. There can be two reasons.
- The first is the error of the installers when installing the window. Probably, the frame was stretched in the center with a nail or an anchor, as a result of which the middle clamping mechanism of the sash stops working.
- The second reason is that the straightening plates, which are installed during the assembly of the structure between the frame and the double-glazed window along the vertical center, could fall. It happens that they are completely forgotten to install.
As a rule, such problems are solved by a specialist in 5-10 minutes - the glazing bead is removed, after which the required number of straightening plates is inserted between the profile and the glass. To make repairs yourself, you need to follow these steps.
To remove the glazing bead, you will need a hard spatula, which is usually used to remove paint, or a wide chisel. It is not recommended to use a knife or a flat screwdriver for these purposes - you can spoil the aesthetic appearance of the structure. By leaning the spatula along the seam of the connection between the profile and the bead (see image 4), you can remove it with a light blow on the handle. You will see plastic plates sandwiched between the double-glazed window and the frame. You will need the same ones - they must be inserted in the middle into the existing gap, moving the frame away from the glass by 4-6 mm.
Records can be bought at the store or made independently from a plastic ruler. The main thing is that the width of the homemade plate exceeds the thickness of the double-glazed window. Otherwise, it may crack. Make sure that the plate in the recess rests against the profile. In order to move the double-glazed window away from the profile, you can use a chisel. You should not make a wide gap immediately, first move the profile 3-5 mm. and after inserting the plate, close the window. If its thickness is not enough, open the window and insert another one.
Often the window handle is blocked, while not allowing the sash to close. In such a situation, you can do the repair on your own. As a rule, the blocker is the reason for such blocking. It works only in the open position of the sash and the handle cannot be turned in any direction, which prevents the window from closing.
Modern designs are often equipped with fittings with such locks that block the handle in a tilt-and-turn or open state. Surprisingly, this is done intentionally so that the consumer does not accidentally damage the product. However, often the blockers work arbitrarily - this usually happens when the position of the handle changes sharply from one mode to another. Let's talk about how to repair plastic windows in such a situation.
First, you must identify the hardware manufacturer. This can be done by reading the name marked on the metal shutter. If the manufacturer is AUBI, then you need to pay attention to the metal plate with a spring that will stick out against the handle (see image 5).
This plate must be pressed tightly against the seal, after which, try to turn the handle. It may not turn if the sash is in the tilted position. The design must be vertical, otherwise the handle will be prevented from turning by the upper lock, which is responsible for the tilt-and-turn position. Therefore, initially, you should give the sash a vertical position and only after that press the plate against the seal - in this situation, you can easily turn the handle to unlock it.
If you have a different hardware manufacturer, you need to find a metal tab that will be located below the handle at an angle relative to the frame (see image 6).
You need to follow the same steps as described above. Just bring the tongue to a vertical position so that the seal is parallel to it. After that, you can turn the handle. However, it should be noted that in this situation there may be an incident with thermal deformation of the structure. The tongue, when closed, can slip past the mating element fixed on the frame without touching it. As a result of this, it will not bend towards the seal, blocking the handle. Then you will need to loosen the screws that fix the counter element of the blocker and place a thin gasket under it (the same plastic plate). Thus, you will ensure the engagement of the mating element on the frame with the blocker on the sash.
Often, owners of PVC windows are faced with the problem of a malfunction of the handle rotation lock in Winkhaus fittings, fixed in the scissors of the tilt-and-turn system. As a rule, the wear of the part occurs due to constant friction, as a result of which the structure refuses to close. Thus, only two positions remain available for the handle: up for ventilation and open. We draw your attention to the fact that no effort should be made to close the handle. By doing this, you can break the main lock gearbox. There are two ways out of this situation: either call a specialist and pay him one and a half thousand rubles, or do the repair of plastic windows with your own hands without his participation.
For independent work you will need to remove the sash to get to the scissors. To do this, remove the plastic trim from the top hinge. Next, using a screwdriver and pliers, you need to pull out the pin (see image 7).
After lowering the sash to the floor, unscrew the screws that fix the fittings and remove the scissors. Now you need to remove the blocker (see image 8). After that, fix the scissors in their original position and put the sash in place. Now the fittings will work like clockwork.
As a rule, such a problem requires replacement of the handle. Note that the tips below will also be relevant in the situation if you wish to install a handle with opening restrictions. It is especially useful for those who have small children - the child will not be able to open the window without your supervision. So, all the steps to replace the handle will not take you more than five minutes.
Rotate the plastic cover at the base of the handle 90° to expose the screws fixing it to the frame (see picture 9).
Unscrew the screws and remove the broken handle. In its place, you need to put a new handle and fix it with the same screws. Note that by setting plastic comb, you must add a ventilation control plate by attaching it under the base of the handle. Such regulators, as well as the handles themselves, can be bought at any pavilion that sells door handles, as well as at any construction market. As a rule, their cost varies between 70-200 rubles. Products equipped with a security lock (opening limiter) may cost more (up to 1000 rubles).
This situation can be caused by two factors: drying of the lubricant or sagging of the sash. The first thing to try is a penetrating multi-purpose lubricant, which can be found at any auto shop. After putting the tube on the cylinder, generously coat all moving structural elements, in particular the upper corner gears. In the event that this does not give the desired effect, try turning the hinge adjustment screws on the window. To do this, remove the plastic plug on the bottom hinge. Next, according to the diagram (see image 10), lift the sash and tighten the screw located inside the hinge using a hexagon. Noticing that the upper corner of the sash begins to come into contact with the striker on the profile, tighten the top hinge screw.
How to replace a broken double-glazed window with your own hands?
We can assure you that this is one of the few problems that we do not recommend fixing yourself. This is an incredibly complex and time-consuming undertaking. If, in search of a master, you come across a proposal - to do all the work on the spot (disassemble the double-glazed window and glue a new one in place of the damaged glass using sealant), feel free to send such a repairman to hell. This is due to the fact that the double-glazed window is sealed.
In the gaskets between the glasses is silica gel - a special powder that dries the air. If the integrity of the structure is violated, depressurization will occur. As a result, the powder will absorb moisture from the air. As a result, after the glass is glued and installed, moisture will appear on it over time, which will show through inside the chamber. There is also a chance that the silica gel will start flowing yellow resin over the glass. Taking into account this fact, order the manufacture of a new double-glazed window from specialists. The product, made by artisanal methods, perfectly reflects the meaning of the saying "the miser pays twice."
If you are determined to change the double-glazed window yourself, we recommend that you follow the following tips. First, remove the old product from the frame, after removing the glazing beads. Be prepared for the fact that the double-glazed window will be very heavy. It is advisable to take it out together. After that, measure its dimensions using a tape measure. Don't forget to measure its thickness. As soon as a new product is manufactured, you can proceed with its installation.
Note that the double-glazed window is installed on plastic plates. If you are changing a blind window, then the plates installed at the bottom will suffice. If this is a sash, then the plates must be placed on each side at the corners, retreating 10 cm from them. We draw attention to the fact that by placing a certain number of plates, you change the geometry of the sash. Therefore, be careful at this stage.
Thanks to this publication, you can always repair a plastic window with your own hands. If you doubt that you can repair the structure yourself, it is better for you to seek help from competent specialists. However, we dare to assure you that when performing work according to our recommendations, you will manage on your own. Moreover, this way you will be able to save a significant part of the money. In conclusion, we advise you to read the material on how to choose plastic windows and what to look for when buying them.
Many people believe that replacing old windows with wooden frames eliminates all problems.
But when the cold comes, many notice some shortcomings in the system. Is it possible to get rid of them? And why is this happening?
Blowing plastic windows: about the main reasons
The reasons for blowing through windows fall into three categories.
- Mistakes made during installation.
- Hardware or low quality plastic.
- The presence of a manufacturing defect.
You can describe the reasons in more detail.
- The occurrence of gaps in the window sill due to improper installation.
- Installation of slopes of poor quality, lack of insulation.
- If the integrity of the frame structure is broken. Plastic with low cost usually does not withstand even minimal loads.
- The seal is very dirty, its poor quality.
- Bad hardware. It is never advised to save on it.
- Failure to comply with the rules during installation, because of which the geometry was violated.
- Loose fit of the sash due to incorrect adjustment.
Elimination of the causes of blowing
Are drafts noticeable throughout the entire perimeter? Perhaps the mode has not been changed to winter. This happens, for example, due to a loose fit of the frame.
Which, in turn, arises from poor quality fittings. Adjustment in such systems is indispensable.
Several trunnions are simultaneously brought to the maximum position, which are located along the perimeter of the valves. Ordinary pliers and a screwdriver are enough to solve this problem.
During the operation, the window must be opened. The design will break if you do not turn and open all the trunnions at once.
Many manufacturers even at the factory set automatic transitions to one mode from another. For this, a roller is placed inside, equipped with a special ring. When rotated, it changes modes from one to another.
There are other ways to fix existing problems.
"False blowing"
“Chill” from a double-glazed window and blowing are different concepts, but many people confuse them with each other. Blowing is a significant defect, which cannot be said about the chill. The latter can manifest itself in two ways.
The decrease in the temperature of double-glazed windows occurs in winter due to the weather outside the window. When the air in the room comes into contact with the lower point of the sash, it also cools.
Sliding occurs on glass surfaces, only from top to bottom. Substituting the palm under the sash, we feel the effect of a slight blowing. The tightness remains the same, but there is a feeling that cold air is blowing.
This effect is due to several reasons. For example, a battery that does not work exactly according to the instructions.
Chilling occurs due to drafts or ventilation with high power. Owners of ordinary double-glazed windows with one chamber also fall into the risk group.
Sealants and putties to reduce heat loss
The method of fastening on glazing beads is considered the most reliable. If it blows from under the glazing beads, they can be insulated with the help of sealants.
Silicone sealant or special putty will add to the effectiveness of this solution. You will need a construction gun to use a tube of sealant.
The composition is applied on top if the glass is not planned to be removed. The composition fills the holes on the wings and cracks, joints of glazing beads and glass. But the surface must be dry and clean. A knife is used to clean the place from excess sealants.
Everyone can prepare putty on their own.
So-called seals are made from several materials.
- Rubber.
- Polyurethane.
- Polyethylene.
In the market you can often find products made of rubber. Self-adhesive options deliver the least problems in operation.
After purchase, it remains to withdraw protective film, and then attach it to the frame. It's over reliable options because they adhere well to the surface.
Silicone rubber is the best solution. Temperature and humidity do not lead to defects.
Universal profiles are marked with the letters D or B. On the window sash, the material is fixed around the perimeter. The main thing is not to stretch it during work.
