Water pipes      03/04/2020

Why do some people tan while others instantly burn? How to get an even tan and not burn in the sun The suns do not fade and are preserved

Siding is facing material, which not only protects your home from moisture and cold, but also gives the house a beautiful and modern look. This building material also attracts consumers because it can be installed easily and quickly, and is also very easy to use. But how to choose the best one? Let's figure out which siding does not fade in the sun and does not fade.

Kinds

Siding comes in the following types:

  • vinyl;
  • cement;
  • steel.

All types decorative cladding have in addition to advantages and disadvantages. Of course, neither manufacturers nor sellers will directly tell you about the shortcomings. They have one interest - to sell their products profitably. Very often, buyers ask the question of which siding does not fade in the sun. Let's try to figure this out on our own.

It all depends on several conditions:

  1. Material color;
  2. Where is the house located: in the sun or in the shade;
  3. Which batch did you purchase?
  4. Brand.

Any type of this facing material is susceptible to ultraviolet radiation. Particularly susceptible to burnout decorative panels located on the sunny side. However, the color change will not be noticeable to the eye, as it occurs evenly over several years, as shown in the photo.

Characteristics

To choose siding, it is better to look at it yourself and familiarize yourself with the characteristics of this type of cladding, guided by the video. Decorative slabs have facial and inner side. The surface of each side should be painted evenly. Color on inner surface may be lighter than the main one, but no stains are allowed, as shown in the photo:

  • Sometimes manufacturers save on dyes to reduce the cost of the material. Poor quality siding is made from cheap raw materials. On the cut you can see that the facing material is painted on the surface. The outer and inner parts may have completely different colors. This is low grade material and not worth buying;
  • A high-quality building material can maintain its original color for more than 10 years, a good one - 5 years, and a cheap, low-grade one can begin to fade in the sun after the third year of use.

It all depends on how much titanium dioxide was put into the product. This chemical, distinguished by its white color, is aimed at protecting the color from the action of ultraviolet rays:

  • Manufacturers who add enough dioxide guarantee that the color of the siding will remain preserved for many years, but it costs much more;
  • IN cheap material less of this chemical is invested, so it begins to lose its color faster;
  • At all bright hues panels are the most resistant to ultraviolet radiation. The lighter the color of the material, the more titanium dioxide it contains. This means that such cladding material will not be exposed to sunlight as quickly as shown in the photo.

In addition, the kit additional elements better buy white A: It will not fade as shown in the photo. The set of dark parts will fade in 10 years, and the cladding will not have the same appearance as it had at the beginning.

Manufacturers

The first siding was released in America about 50 years ago. Today, the largest percentage of consumers are products manufactured in the USA and Canada. Companies issue vinyl siding excellent quality, various colors and shades. The siding from these manufacturers will look like new for decades. However, this cladding material is expensive.

The most expensive is the cladding material from Canadian manufacturers Mitten and Kaycan, as shown in the photo. They have been on the market for 50 years and guarantee that the material will not fade or fade for 30 years.

  • Variform - USA;
  • Vytec is a company from Canada;
  • Georgia Pacific - made in the USA;
  • Foundry - USA;
  • Novik - Canada.

If you cannot afford this, you can look at options for facing slabs from domestic manufacturers. Some of them produce good facing material, especially since it costs much less, as shown in the photo.

When choosing domestic cladding material, choose a large company that has been working longer than others. Popular domestic manufacturers:

  • Docke - Moscow;
  • Northside - St. Petersburg;
  • Vox - Belarus;
  • Atlantic - Belarus.


It may happen that you may receive a bad batch of material. For example, at a factory, the technology for manufacturing facing materials may be accidentally violated. In this case, the quality of the siding will, of course, become worse. Therefore, it is better to opt for products from trusted companies.

Let's sum it up

When choosing a facade coating that will serve you for many years, do not save money. It is better to choose facing material from well-known manufacturers, even if it is more expensive. If you want your home to last for a long time, purchase panels in light and pastel shades that do not fade as quickly as dark ones.

Today, metal tiles are one of the most popular materials on the roofing market. It is easy to use, light weight and wide color scheme. When choosing metal tiles, first of all, you should pay attention to the manufacturer, the thickness of the metal, the zinc coating and the type of polymer. The color of metal tiles does not affect its quality in any way and is selected only according to individual preferences. Still, let's figure out what colors metal tiles come in and which one is better to choose?

According to marketing research, the most popular among our population are dark red, chocolate and green color and roofing materials.

Factors influencing the choice of metal tile color


When choosing the color of metal tiles, it is worth noting several factors:

  1. Climatic conditions. Under the influence of ultraviolet rays, dark-colored metal tiles fade faster. It is best to choose these colors if the house is located in the shade of trees, which will provide the roof with protection from the sun.
  2. Quality of material. Any metal tile gradually fades in the sun. A high-quality product burns evenly and is almost imperceptible to the human eye, while cheap metal tiles burn out in spots, which has a very negative effect on appearance building.
  3. Polymer coating. Each polymer has its own warranty period for aesthetic characteristics. Polyester will last up to 10 years without changing its appearance, while pural and plastisol last about 20 years.
  4. Manufacturer. It is best to buy the entire volume of metal tiles from one manufacturer from one batch. Although the chemical industry has made great progress, the colors of different batches may still differ slightly, which will not look very nice on the roof of a house. For different manufacturers, markings of the same color can actually be completely different.
  5. Guarantee. Before purchasing, you should pay attention to the warranty period that the manufacturer provides for the aesthetic characteristics of metal tiles. If the metal tiles begin to fade unevenly before the end of the warranty period, you can request that they be replaced under the warranty.

There is a misconception among buyers that metal tiles dark colors heats up faster, raising the temperature in the house. This is fundamentally wrong. The color of the product does not in any way affect the thermal conductivity of the material. Physical properties are absolutely the same for both dark- and light-colored metal tiles.

All colors of metal tiles are marked according to a single international standard, which was adopted in Germany in 1927. The abbreviation of this standard is German language– RAL. Its palette includes 213 shades, each of which has its own marking.

Characteristics of various colors of metal tiles

Which color you choose is a matter of taste, but we can tell you a little about the colors themselves:

  1. Brown– symbolizes strength of character and the ability to overcome any difficulties. Most often it is preferred by conservatives, for whom it evokes a feeling of security, restraint and stability. Metal tiles of brown or chocolate color go well with the greenery of trees, so it is recommended to be used for houses surrounded by a garden or park.
  2. Burgundy red– characterizes determination and irrepressible energy, awakening a thirst for activity in a person. Designers recommend it to active people and businessmen. Looks beautiful with accessories of similar shades, as well as in contrast with black or white.
  3. Terracotta– it most closely resembles natural clay tiles. This is a shade Brown, reminiscent of fired ceramics. Actively used in the practice of Feng Shui.
  4. Green– associated with nature. Rich green color instills calm and tranquility, while muted tones create an atmosphere of concentration and composure. Psychologists recommend using this color, especially in big cities.
  5. Blue– looks very beautiful in bright light, so when choosing this color you should take care of the evening lighting. Light blue tones bring relaxation and calm, while saturated ones can drive you into depression, so you should be careful with this color. Blue roofing looks perfect in a landscape with bodies of water, be it a lake or a river. It is also perfect for coastal areas. Ideally combined with white accessories on the façade or roof.
  6. Grey– one of the most versatile light shades. Perfect for dark places with insufficient lighting. Gray roofing harmonizes perfectly with the surrounding nature and is considered a symbol of restraint and stability. It is the choice of people who purposefully and calmly move towards their goal.

You can choose the most optimal color, taking into account the facade, accessories and the surrounding landscape, yourself or by contacting professional designers. But the most important thing is not to skimp on the quality of metal tiles, then the chosen color will serve for a long time and be pleasing to the eye.
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Summer is the time when many people take vacations and go away to bask in the sun. But if for some sunbathing- pure pleasure, then for others it is a risk of experiencing pain and discomfort, which is called a sunburn.

I'm sure you already know that sunburn is the result of exposure to ultraviolet radiation on the skin and what to prevent unpleasant consequences perhaps with sunscreen. But what you may not know is that sunburn is nothing more than a protective reaction of the body, and that the effectiveness of aloe vera (popularly considered one of the best remedies for relieving burn symptoms) has not been proven at all.

Considering that sunburn is a fairly common phenomenon, it is surprising how many questions, myths and misconceptions it has acquired.

In this article we will explain to you what tanning, sunburn, sunscreens are and, most importantly, how to protect yourself from the development of cancerous tumors.

Why do some people tan while others instantly burn?

In short, sunburn is a reaction of skin cells to DNA damage caused by ultraviolet rays. Tanning and sunburn in themselves are not harmful to the body; it is only evidence that the DNA molecules have been damaged, which means that the likelihood of developing skin cancer has increased.

Ultraviolet (UV) is electromagnetic radiation that occupies the spectral range between visible and x-ray radiation. The sun emits several types of ultraviolet radiation.

NASA

Short wavelength UV (UV-C) is almost completely absorbed by the ozone layer. But the remaining two types (UV-A and UV-B) are able to penetrate the ozone layer.

For a long time, it was mistakenly believed that only UV-B could cause skin damage and cause DNA molecules to go into an excited state (this leads to mutations, genetic disorders and, as a result, the development of cancer).

More recently, scientists have found that although UVA does not cause burns, this type of radiation also causes cancer.

It is worth keeping in mind that our body has natural protection against ultraviolet radiation - a dark pigment called melanin. Melanin colors cells dark and reduces the harmful effects of radiation on the body.

Some people are born with elevated levels of melanin, which makes their skin darker and less vulnerable to UV damage. Others are forced to produce this pigment under the influence of small doses of radiation. The whole process takes from one to three days, and when it is completed, what we used to call a tan appears.

However, having a tan does not mean that your skin is completely protected from the harmful effects of ultraviolet radiation. People of all skin tones are susceptible to sunburn. It's just that those with less melanin are more likely to get burned.

Why sunburns are painful, itchy, and blistering

The body's first reaction to damage to DNA molecules from radiation is to kill the affected cells. This is necessary to prevent mutated cells from reproducing uncontrollably, forming a tumor.

If dead cells are upper layers When the skin peels off without any special obstacles (about a day after a sunburn), the body has to clean out the damaged cells in the deep layers. There is a special mechanism for this.

When a cell dies, it releases a tiny piece of damaged genetic material. This signals neighboring cells to initiate a series of changes known as the inflammatory response.

This is the same reaction that the body triggers in response to an infection. Blood vessels dilate, increasing blood flow (resulting in a rise in temperature), and increased protein synthesis leads to itching and pain.

If killed immediately a large number of cells, a blister forms in their place. The body needs this in order to fill the damaged tissue with plasma and thus promote healing.

When and where are you more likely to get burned?

The time required to cause burns is proportional to the dose of ultraviolet radiation received by the skin. Accordingly, the more direct rays hit the skin, the greater the dose received.

That is, the closer to the equator, the higher the chance of getting sunburn. Likewise, the likelihood increases sharply during the summer, especially between 10:00 am and 2:00 pm. And UV radiation reaches its peak at noon.

Unfortunately, clouds are better at blocking visible Sun rays than ultraviolet light, so you can get burned even on a cloudy day.

In some cases - for reasons that are unclear - clouds can even increase the amount of ultraviolet light reaching the surface.

If you are at a high altitude, then the likelihood of getting burns is much higher, because in this case, solar radiation does not need to break through the entire atmospheric layer to reach you.

There are other factors that can increase your risk of getting burns. For example, being near snow, water, white sand, or other material that reflects UV will expose you to more radiation.

How to prevent burns

The answer is banal. Use sunscreen. This will not only prevent sunburn, but will also significantly reduce the risk of cancer cell formation.

Although with sunscreens not everything is so simple. There is evidence that the active chemicals found in creams have side effects and can cause poisoning. Therefore, today it is a very popular opinion that best protection- These are creams based on minerals such as titanium dioxide and zinc oxide.

Yet most dermatologists tend to believe that the benefits of sunscreens based on chemical substances more than potential harm. Dermatologists also recommend using creams with a broad spectrum of protection (UVA and UVB protection) and an SPF of at least 30.

What is SPF in sunscreens?

SPF is an indicator of how long a cream can maintain its protective properties. That is, if the skin burns in 10 minutes without cream, then a cream with SPF equal to 30 can increase this period to 300 minutes.

It is also worth paying attention to the fact that SPF is a logarithmic indicator and after reaching a certain point (approximately 30), further increases in this value are unlikely to add additional protection.


How to use sunscreen

Experts recommend applying the cream at least 15 minutes before you are in the sun. You should repeat the procedure every two hours or immediately after you sweat or swim. Of course, there are a number of waterproof creams, but the rest are either washed off or lose their properties.

What to do if you are already burned

First, get out of the sun to prevent further damage and allow the body to begin its healing mechanism.

Secondly, to relieve pain, you can take a cold shower or use a moisturizer and anti-itch cream. If the pain is severe, it is acceptable to take painkillers.

Important! There is no evidence that aloe vera is the best remedy to combat burns.

Another good advice: If you get sunburned, drink more water. Sunburn is often accompanied by dehydration.

Sunburns begin to heal within a few days. It gets better in a couple of weeks. Still, it's worth remembering that cells with damaged DNA molecules accumulate and the more often you sunbathe or burn, the higher your risk of developing cancer.

Be careful in the sun!

Each type of product, be it a car, a facing material, or a textile product, has its own characteristic color, which depends on the presence of certain pigments in its coating paint or fiber.

Paint fading, textile fading Under the influence sunlight, heavy rainfall or frequent use detergents- a serious problem faced by manufacturers of almost any product. This process not only worsens the appearance of the product and its aesthetics, but can also disrupt the protective properties of the outer coating, creating the preconditions for negative influence it is affected by various chemical contaminants, precipitation, solar radiation, high and low temperatures.

Why does color change when exposed to the sun?

Sunlight is a stream of particles, each of which has some energy. When the particle reaches the surface of the product, its energy is absorbed by the paint molecule. This process excites electrons in the molecule, which, moving to a different energy state, disrupt established chemical bonds and molecular chains, resulting in the destruction of paint pigments. Accordingly, the color of the coating changes, it becomes lighter or darker, loses its brightness and saturation.

Similar processes in the material are observed when its surface is exposed to other factors - abrasive substances, precipitation, etc.

The ability of a material to retain its color when exposed to light is determined using appropriate laboratory equipment, such as those developed by Atlas MTS. Such devices are widely used in the textile industry, automobile production, building materials, paints and varnishes and other products.

The speed of the process of paint fading or fading of textiles is determined by many factors, the main ones being the intensity of light and the time of its exposure to the object. Modern devices for testing materials for light fastness and color fastness, Atlas MTS allows you to adjust these parameters, determining the properties of materials under various external conditions and predicting the quality of manufactured products with a high degree of reliability.

You've probably noticed that the curtain hanging on the window fades over the summer and becomes faded. The same thing happens with paintings and photographs exposed to light for a long time. Under the influence of sunlight, windows and windows fade, and people's eyebrows and hair become light. Why is this happening?

This is due to ultraviolet radiation from the sun, which causes paint to fade. The human eye is capable of perceiving light waves of a certain length, which correspond to the spectrum we see, from red to violet. We cannot see everything that is outside it. Waves longer than red are called infrared, and those shorter than violet are called ultraviolet. These waves are inaccessible to our vision.

At the same time, they really exist. We feel infrared waves as heat, and thanks to ultraviolet radiation we get a tan. Infrared light waves are used in night vision devices. Some animals are able to perceive this light spectrum. These include, for example, pit snakes. They easily find their prey in complete darkness. And all this thanks to sensitivity to infrared rays.

Infrared vision is somewhat different from optical vision. Thermal sensors are located on the snake's face, which are capable of receiving thermal radiation from various bodies. Once in the brain, these signals are converted into a stereoscopic image of the object, while simultaneously determining its location.

A similar story is observed with ultraviolet rays. Some species of animals and birds are capable of perceiving it. The crayfish, the praying mantis, sees ultraviolet light very well. Scientists claim that this amazing creature sees infrared rays, as well as colors that humans do not know about.

But let's get back to the paint that fades. What is light? Essentially, this is the movement of energetically charged particles - photons. When they reach an object, they hit its surface. As a result, either they are absorbed or reflected. Reflected light particles fall on the retina of the human eye, as a result of which we see the object and its color. If the object turns out to be red, it means that these waves were reflected from its surface, while all the others were absorbed by it.

Photons have a certain energy potential. Its greatest significance is in ultraviolet rays. Getting on the surface of an object, they are able to destroy its molecules. This is their main danger. You probably know that the ability of ultraviolet radiation to kill all living things is used in medicine. By using ultraviolet lamps carry out disinfection in operating rooms and hospital wards. This radiation kills germs and prevents them from spreading. A similar story is observed with paint. Ultraviolet radiation destroys its molecular basis, as a result of which it turns pale or burns out. Well, ultraviolet radiation and other rays that make up sunlight help. That's the whole secret of the burnout process.