Helps to avoid all these troubles correct device street door. It is important not only what material is used as protection against freezing, but also according to what scheme it is installed in the door leaf. Optimal design doors for a private home are a layer cake. The first, outer layer is the door panel. It can be made of wood or metal. The second layer is insulation. It is important that it has a high density coefficient. Pressed is best mineral wool. The third layer is the air gap. It protects the door from through freezing. It works on the principle of a multi-chamber window, when the air inside the structure prevents cold from penetrating into the room. The fourth layer is insulation again. The last one is decorative inner panel.
When designing a house, it is better to plan the front door on the side where there is less wind. This will reduce the risk of warping due to rain.
Along the contour, the door leaf must be equipped with a rubber seal that does not allow cold air to pass through at the junction with door frame. The box itself must also be insulated and equipped with a threshold. Some manufacturers began to supply models with electrically heated boxes. This is an excellent solution for protection against possible freezing in severe frosts.
Durability
Since the street entrance door is constantly exposed to temperature changes, precipitation, and ultraviolet radiation, it is subject to increased durability requirements. The metal door must be treated with an anti-corrosion coating that is resistant to fading.A canopy or small vestibule. The canopy will protect the door from moisture and scorching sun, and the vestibule will provide additional thermal protection for the house.He considers powder coating to be the most reliable. A decorative wood panel must be treated with moisture-repellent impregnation and paint that is resistant to temperature changes. A private home is prone to some movement, which can cause low-quality doors to warp. Therefore, the entrance door must be installed in a metal counter-frame.
Burglary resistance
Anti-vandalism is not the most important characteristic of a door in a private house, since there are many more convenient places for penetration, such as a window. However, for greater reliability, you can choose a strong input node. The blade must be made of steel no thinner than 2 mm. It is better if the hinges are hidden; the door itself is equipped with two different types of locks. One of them is cylinder, the other is level. The modern market offers a wide variety of biometric and electronic locks, video surveillance systems, including remote ones, security alarms. These are all great ways to protect your property from break-ins and break-ins.Any door must be strong and reliable. And the street entrance door in particular. A wide variety of materials and models makes this choice very difficult.
There are many problems with entrance doors. These are low strength characteristics, susceptibility to corrosion and condensation.
Helpful information:
Advice! An aluminum profile will increase the strength of wooden door leaves.
Metal doors
A metal front door inspires confidence in many people just by its name. It is widely believed that such blocks are the most durable and reliable. What are the disadvantages of using them and is it all that simple?
Characteristics of entrance door designs
How strong the front door will be is influenced by the following points:
- Production process
- Design qualities
It is clear that the greater the thickness of the steel, the higher the strength of the door. Surfaces with a thickness of 1.2 mm or more will have good properties. length 2mm. Steel ribs will increase rigidity and strengthen the structure.
Stiffener systems:
- Longitudinal ( vertical elements fortifications)
- Transverse (horizontal reinforcement elements)
- Combined (combination of several types)
A longitudinal system of ribs will protect the door from bending corners. Transverse - will make it difficult to push through the door surface. Combining both stiffener systems will achieve optimal results.
The highest strength of the canvas can be achieved by armoring. The manufacturing technology will be exactly the same as that of bulletproof safes. Filling the structure with concrete solution provides the necessary strength.
If you can work with metal and want a unique and durable door, you can make one yourself. Follow the recommendations for.
Special protection
Using reinforced hinges - good way Increase intrusion protection.
Hinge modifications:
- Regular
- Ball
- Safe
The most effective are hinges with support bearings. This type will withstand the weight of heavy metal doors. They are also used for swing gates and massive garage openings.
Anti-removal pins - bonus resistance of the block to burglary. Reinforcing passive crossbars connect the closed door leaf with the frame. Deadbolt - retractable deadbolt cylindrical, performing the function of a locking mechanism. Mounted on the hinge side on the vertical profile of the box or panel. If the locks and hinges are broken, the door will not be able to be opened or removed from the hinges. The pins will hold the door in place.
Insulation of metal door blocks
To rid the door leaf of frost and ice, you will need a layer of thermal insulation. Up to 25% of heat escapes through doorways. The metal has a high degree of thermal conductivity and is prone to freezing.
Advice. A canopy or canopy over the front door is additional protection from bad weather.
Insulation materials
- Fibrous (mineral and basalt wool)
- Panel (extruded polystyrene foam)
The disadvantage of using mineral wool is vapor permeability. When exposed to moisture, the material shrinks. In this case, thermal protection will be incomplete and ineffective.
Basalt wool does not accumulate moisture and does not shrink. It has low sound permeability and good vibration resistance.
The closed structure of the foam will not absorb evaporation and moisture. At the same time, foam boards will provide good sound insulation.
Not as economical as polystyrene foam, but more effective - extruded polystyrene foam and polyurethane foam.
Issues with freezing of metal entrance doors
Control measures.
- Cut off the possibility of contact of the front door with warm air living space. If the house has a vestibule or veranda, install a metal-plastic door on the side of the heated room. The low thermal conductivity of metal-plastic will prevent cold air from penetrating inside and will solve the problem of freezing of the external entrance door.
- You can opt for door designs with thermal inserts made of polyamide. The material absorbs the effects of very low temperature conditions. For example, having -25ºС outside, from the room side the canvas will have a positive 10 degrees. This profile will cost twice as much as a regular one. But the castle area will still be subject to freezing.
- Electric heating system. A heating wire laid around the perimeter of the door, near the locks and inside the frame itself will be an effective barrier against ice. Additional electricity consumption - minus this method. But even at the lowest temperatures, the door will always remain dry.
Advice. A double, or better yet, triple insulation circuit will ensure minimal heat loss through the gaps between the leaf and the door frame.
Metal door finishing
From the outside, the front door is constantly exposed to a number of external factors. These include sudden temperature changes, sunlight, and precipitation. The finishing coating must withstand the impact without damaging the block as a whole.
Finishes made from materials like chipboard or MDF are absolutely not suitable. Even with PVC coating, such a finish will not cope with rain and snowfall. The coating will become unusable and will not protect the metal from corrosion.
Hammer painting - great way for finishing the front door from the street side.
After drying, such paint will have an interesting “hammered” texture. Silicone resin and metal pigments in the paint will provide reliable protection from moisture. The paint dries quickly and is easy to apply. The ability to repel dirt makes the coating easy to clean. Painted metal doors look very beautiful. The color remains saturated for quite a long time. The paint is applied in several layers with a roller or spray.
Vinyl cladding. Viniplast is a non-flammable thermoplastic material. Has good strength and elasticity. Viniplast will perfectly withstand various atmospheric precipitations. A serious disadvantage is poor frost resistance. At -20ºС the material becomes brittle and can crumble with minor mechanical stress.
Waterproof finish made from shiplap panels of oak, alder, pine - will give the doors a chic appearance. The panels are made from high-quality wood using moisture-resistant glue. The impression of natural solid wood will cost accordingly.
Door locks
About 60% of heat loss through a doorway occurs through locking mechanisms. When choosing a door, you should pay attention to what kind of locks are installed. The best option is two different types mortise lock. The most reliable are lever and cylinder types. Both of them have a fairly high degree of protection against hacking. It is physically impossible to break a lever lock, and it is very difficult to find a master key for a cylinder lock. Disc and cross-shaped opening mechanisms are also quite common.
Locking mechanisms are divided into classes according to the degree of resistance to burglary. For entrance doors it is recommended to use 2-4 groups. The lock class is indicated in the product passport.
What to choose other than metal doors?
Metal-plastic doors have fairly high levels of strength, durability, and reliability. Certainly, steel door will exceed these characteristics. But the doorway is not the only way for an intruder to enter the house. So you can argue about which material is better.
PVC doors are widely used in low-rise construction. They are not subject to condensation and icing in cold weather.
Choosing a metal-plastic entrance door
There are similarities in the production technology of PVC windows and doors. But in general they differ significantly. High requirements for strength door structures, allow production only from special reinforced PVC profiles.
Door block
For quality input PVC doors a profile of five cameras is used. Its thickness should not be less than 70 mm. The metal frame strengthens the structure from the inside. The fittings are located around the entire perimeter of the door. Strong fastenings at the corners are responsible for the rigidity of the frame. This frame will allow you to install powerful hinges and anti-burglary locks on the door.
Attention! When ordering a door, pay attention to the number of cameras.
Used for heat and waterproofing rubber compressor. It is located on all sides of the canvas and frame. Plastic doors for country and private houses they are equipped with additional profile reinforcement. This reinforcement provides additional protection against penetration.
Various options can be with finishing, triplex inserts or armored glass. Triplex is a multilayer glass made by pressing. These materials will withstand strong mechanical impact from the outside. Will provide good review Behind the door. Sometimes stained and tinted glass is found.
For reliability, give preference to models with a glazing surface of no more than a third. As a rule, the upper part is reserved for glass.
PVC profile doors can be:
- Single leaf
- Double-leaf (for wide openings to evenly distribute the load on the hinges)
The shape of the entire block can be either standard, arched or round. You can read it here.
For centuries, wood has been successfully used as a material for entrance doors to homes: an affordable resource with low thermal conductivity. But the modern homeowner, when it comes time to choose an entrance door, focuses not only on design and insulation characteristics. Important criteria are reliability, the ability of the door to increase the comfort of household members and serve as a barrier for an intruder. Considering the variety of offers, how to choose an entrance door in a private house, cannot be decided based solely on the cost of the options offered.
Doors like business card Houses Source lv.aviarydecor.com
What functions do entrance doors to a private house perform?
The front door to a private house is a multifunctional attribute of the building, designed to serve for many years. When choosing it, the owner decides several important issues:
Thermal insulation. The higher the latitude, the longer the winter and the more severe the frosts, the more important this characteristic becomes. The design should not only insulate the room from the cold outside, but also prevent heat leakage from the inside, preventing the formation of cold bridges (fragments of fabric with poor insulation). The problem is solved with seals and insulation, which at the same time improves sound insulation.
Wear resistance. The fundamental factor determining practicality and resistance to weather vagaries, as well as accidental (from furniture brought in) and intentional damage.
Safety. A metal entrance door to a private house meets modern safety standards (including fire safety) better than analogues made from other materials.
Design. Entrance doors in a country house should not fall out of the overall design concept. Thanks to modern technologies the design fulfills its main tasks without disturbing the harmony architectural style. The choice is amazingly rich decorative solutions– manufacturers offer models with mirror elements and inlay, with forging, glass inserts and various fittings.
A door that adds light and visually expands inner space home Source erp-mta.ru
What materials can you choose from?
The main entrance to the house attracts the most attention from the street. When it comes to choosing a material, you need to consider cost, functionality and visual appeal.
Plastic
The material of such structures is sheet plastic and PVC profile, with or without double glazing. The thermal insulation properties of double-glazed windows reduce heat loss. Street doors for a private home made of PVC have their advantages:
relatively low cost and ease of installation;
durability;
sound insulation;
no corrosion.
Minuses: the structure can become deformed under prolonged exposure to the sun; When melted, toxic substances are released.
Aluminum
A popular option with many benefits:
Impact resistance environment(higher than plastic and wooden ones).
Strong, durable, environmentally friendly, fit well into any interior.
Soundproofing.
Thermal insulation. This is achieved thanks to thermal break technology (a polyamide insert that separates the profile metal and eliminates the cold bridge).
The wooden model goes well with stained glass inserts Source hullcoexteriors.com
Tree
No matter what material appears in the home construction industry, there will always be consumers who choose classic models from natural wood. The wooden entrance door to a private house is made entirely from solid wood different breeds(does not contain any additional elements), or from a combination of wooden boards and metal elements. Their advantages are:
Attractive appearance and variety of models.
Low thermal conductivity.
Some serious disadvantages prevent you from enjoying the classics:
High price.
Expensive maintenance - wood inevitably cracks and deforms, so it needs periodic treatment.
Low level security (it's easy to hack).
Low fire safety.
Using fiberglass Source pezcame.com
Fiberglass
Such designs, due to their high insulating properties, are among the most energy efficient doors on the market. The benefits don't stop there:
Safety: durable steel structures, but without their tendency to corrosion.
A variety of styles, the ability to imitate natural wood.
Easy to care for and resistant to dents.
Metal (steel)
The most popular models, thanks to the many options, optimal price ratio and level of security provided. Besides this they:
have excellent thermal insulation;
fireproof;
does not require Maintenance(periodic lubrication of hinges and locks is carried out).
There are few disadvantages:
possible corrosion in budget options;
The canvas is susceptible to scratches and dents.
Finishing option for steel entrance doors Source erp-mta.ru
On our website you can find contacts construction companies who offer the service of installing windows and doors. You can communicate directly with representatives by visiting the “Low-Rise Country” exhibition of houses.
To the features door leaf applies:
Thickness. Entrance doors for a private house are assembled from metal sheets 1.5-2 mm thick. If the value is larger, the door hinges need to be strengthened.
Made from high quality steel. The design has stiffening ribs and protection external hinges(anti-cut).
Locks. Certified options are desirable. The locking area is reinforced with a metal plate or box.
Noise and heat insulation. The space between the stiffeners is filled with non-flammable sealant - mineral wool or polyurethane foam.
Video description
How to choose metal entrance doors in the video:
What should you pay attention to when buying, besides appearance?
Quality of materials. The quality of products must be confirmed by manufacturer certificates (product warranty).
Thermal insulation effective if:
thermal insulation thickness is not less than 5 cm;
the total thickness of the frame and canvas is not less than 8 cm;
the design contains thermal bridges and a perimeter seal.
Security and external control elements. The burglary resistance of the structure is determined by 13 classes. The street entrance door for a country house, like all analogues for residential premises, belongs to the first 4 (preferably 3 or 4). It is equipped with a drill-resistant lock and a pull-resistant handle.
If you select a model with glass, use a multilayer (impact-resistant) version. The peephole is selected according to the thickness of the structure, the optimal viewing angle is 180°.
Hinges for street doors. The most reliable (and expensive) are cut-resistant, adjustable, hidden hinges. They are made of steel and can be adjusted (if skewed). If the weight of the product is relatively small, bearings are used for hinges. For massive structures, the option with hardened balls is suitable.
Adjustable hidden hinges Source wareneinkaufen.me
Locks. The place where the locks are attached is ideally reinforced with an armor plate (protection against knocking out and drilling). It is more useful to install two mechanisms - lever and cylinder; they should be comfortable for all family members.
Narthexes and platbands:
Platband. The purpose of this element is to mask the gap between the door frame and the wall opening, plus, to protect the door from breaking in with a crowbar.
The narthex The protruding part of the outer sheet that protects the gap between the closed structure and the frame.
Fastening the door frame to the wall. The door frame is the frame on which the door hinges and the structure itself are mounted. It experiences a large load, so the steel in its profile must be thicker than in the door leaf.
The planes of the box and the opening must coincide. During installation, this parameter is regulated by the building level.
Selection of swing iron structures for a private country house
Sometimes external doors for a private house are designed in the form of hinged double-leaf models, which have their own advantages:
the doors open easier due to the distribution of the load on the hinges;
the design takes less space when opening;
the façade makes a solid impression.
Models are available with sashes of different widths or with symmetrical sashes, as well as with fixed side transoms, allowing you to narrow a large opening.
Double-leaf entrance doors for a country mansion Source genduk.hk.access.ly
Entrance door manufacturers and costs
Experts say that up to 90% of models sold are of domestic origin, which is understandable. The quality of products from local manufacturers meets foreign standards, as they are produced using imported equipment, but the price and delivery time are often significantly less. Buyers are provided with warranty service; Companies are willing to produce non-standard designs to order.
The price of street doors to a private home can vary quite widely, depending on the door material and the design solutions used.
- Economy class:
The price for standard economy class metal doors with vinyl leatherette trim starts from 4.5 thousand rubles.
For models with laminate or spraying they will ask from 6.5 thousand rubles, and if the shape of the opening is non-standard (arched and similar), then from 9.5 thousand rubles.
Doors with reinforced leaf, although without any special frills, will already cost 11-15 thousand rubles.
- Middle price segment:
Doors with glass and forging - from 16.5 thousand rubles,
A variety of models with MDF finishing, the cost of which will range from 23 to 38 thousand rubles.
- Premium class. Divided into two main categories:
- Just doors made of natural materials - with solid wood finishing, or models of wooden entrance doors for a private house made entirely of wood. Price ranges from 39.9 to 70 thousand rubles.
- Elite class products, the cost of which depends entirely on your wishes. A price tag of 100-120 thousand rubles and above is not uncommon here - this is the price for an individual approach to the client and original design, which is designed taking into account the entire space surrounding the door.
Among foreign models, doors from China are widely represented, but they budget prices often mean lower quality than average domestic analogues. The remaining foreign manufacturers share a small part of the Russian market among themselves. Italian (MASTER, Panto, Dierre), Finnish (ALAVUS, Fenestra), Israeli (Super Lock) and Polish (Gerda) brands offer premium products using advanced technologies and natural materials.
You don't have to open doors to see who's outside. Source kenneyandcompany.com
How is installation done?
Whatever the street doors for a private house, the work proceeds according to the same plan:
Dismantling the old structure (optional) and preparing (leveling) the opening.
Checking the completeness and operation of the lock.
Installation of the box (frame). The correct position (coincidence of the planes of the box and the opening) is checked with a building level.
Vertical and horizontal planes Source bulgara-ny.com
The frame is fixed using mounting plates, anchors or steel reinforcement and is fixed.
The door is hung on the hinges, the movement of the door leaf is checked, and the hinges are adjusted.
Technological gaps are filled (with polyurethane foam or cement mortar) at closed door, protected by film.
Slopes, trim, door closer, locks and handle are installed.
All cracks must be filled with foam. Source deco24.access.ly
On average, installing a steel street door takes 2-4 hours. Installation can be done at any time of the year; the only limitation is imposed by polyurethane foam, which can be used down to -12°C (without warming up the cylinder).
An example of beautiful and original doors: photos and videos
Video description
About the choice of doors from various materials on video:
And a few examples in the photo:
Few people use door knockers, but they look very nice Source timgori.pw
Although half the door area is occupied by glass inserts, it is quite difficult to break it Source stroy-masterden.ru
Forged elements will never go out of style Source formywife.info
The door design is ideal for a home with a second light Source deavita.fr
The door design looks very “powerful”, despite the transparent wall Source masterlad.prom.ua
Conclusion
The front door is usually the first and last thing people see when visiting a home; This design is designed to give a sense of character and style of housing. On the other hand, an external door is something that will last for many years. It is important to remember that all this time, street entrance doors for a private home will play a key role in ensuring the safety and energy efficiency of the home.
A feature of many private houses is the presence of an unheated veranda. In other buildings, the user, after the threshold, immediately finds himself in a warm room or corridor. All this creates difficulties in the fight against cold and condensation and requires an individual approach. In such buildings there is always a high risk of vandalism. To protect yourself from these factors, it is important to figure out which entrance door to install in a private house.
To combat cold and dampness, it is important to choose the right finishing and insulation materials. If the canvas does not have a canopy over it, then snow and rain will constantly fall on it, which requires a reliable covering. In this case, powder spraying is suitable, performed by heating the metal to 180 degrees and applying fine granules of paint, which is baked on the surface, creating a continuous layer.
You can install a door in the vestibule of a private house with a vinyl leatherette finish or laminate panels on the inside. Because this small room is not heated, then significant insulation of the entire structure is not required, because before entering the room you will still have to install another, possibly wooden, door. Two circuits are enough here sealing gum along the perimeter.
In the case of installing doors that immediately separate the street and the heated room, reliable sealing is necessary. A large temperature difference can contribute to heat transfer up to 70%, which will cool the room.
To put in a private home metal door for such conditions, use exterior finishing and inside MDF panels 16 mm thick or lining. But there must be a canopy over the entrance to protect the canvas from precipitation and UV rays. For cottages, solid oak or ash is suitable. In simpler houses they use vinyl artificial leather and a thick layer of isolon in the substrate.
This structure must be insulated with mineral wool. This material fills the internal cavity of the sash well and prevents heat transfer. Ursa is also placed in a container to prevent icing or drips from appearing on it. Installing a window into a sash does not reduce the heat-saving properties, provided that a double-glazed window is used.
In addition to fighting the cold, the canvas must be resistant to vandalism. On a street with one-story buildings and high fences between neighbors, appears more possibilities knock or saw with a tool without arousing suspicion. What kind of doors are best installed in a private house so that they reliably protect property from burglars? They must meet the following characteristics:
Be welded from a profile pipe 50x25 mm or 40x25 mm.
Have an overlay sheet 1.2-2 mm thick.
Equipped with anti-removal pins at the ends of the sash.
Equipped with stiffening ribs, preferably combined scheme to resist bending the edge with a crowbar.
At the locations of the locks there should be additional plates that increase the overall thickness of the metal in this place. The sizes of openings in a private house are quite varied and are often wider than in apartments. To make the massive structure more convenient to use, you should choose a model with several sashes. This will extend the overall life of the product and reduce the load on the hinges.
In addition to the finish and thickness of the metal, locks also play an important role. Which street door should be installed in a private house, taking into account these elements? Reliably protect the structure from intelligent hacking two locking devices With different types mechanism. It is best to use a safe type with a butterfly key containing many plates and a cylindrical lock with three or four bolts, 11-13 mm in diameter.
It’s even better to use a crab spacer on four sides, which blocks any manipulation of the canvas (squeezing, tearing). Canopies are suitable for the hidden type to prevent them from being cut down. This structure should be mounted on anchors through welded ears in order to rigidly attach the frame to a thick wall.
The Panther company has more than 60 door models for installation in a private home, with different characteristics for installation in a vestibule or directly in a warm room. A large selection is also available in decoration materials.
Entrance doors to a private house: nuances of choice
When choosing a door for a private home, owners will have to solve the problem of the optimal balance between price, reliability and thermal insulation properties. There are many options, each of them has pros and cons. In this article we will look at the main types of entrance doors in terms of the listed requirements and help you determine the best one, as well as tell you what to look for when choosing.
What should the front door to a private house be like: basic requirements
Good entrance doors meet two main requirements:
- provide reliable protection against outside intrusion;
- do not allow cold air to penetrate from the street into the room.
These qualities depend, firstly, on the properties of the material from which the door is made, and secondly, on the design features, in particular on the presence of insulation.
Entrance doors are most often made of metal, reinforced PVC profile, or natural wood. Let's look at the features of each type of material.
- Wooden entrance doors for a private house little popular, despite their aesthetic merits. Attractive appearance is perhaps the only advantage of wood. Naturalness and environmental friendliness, which are emphasized in advertising, are dubious advantages: in order for the product to last a long time, the array is processed chemical compounds. When exposed to moisture, a wooden door swells and becomes deformed. In addition, it is not burglar-resistant enough and is not fireproof.
- Metal-plastic entrance doors for the house made of PVC profile, reinforced metal frame. They have many advantages: good heat and sound insulating properties, the ability to withstand temperature changes, moisture resistance, fire safety, and an affordable price. At the same time, doors made of metal-plastic are not without their drawbacks. They are less durable than metal ones and are susceptible to mechanical damage. It will not be difficult for an attacker to break into the door, even if the door is equipped with anti-burglary locks. From an aesthetic point of view metal-plastic doors much inferior to wooden and metal ones.
- Metal entrance doors- the most popular option. This is primarily due to their high strength, reliability and durability. Steel is indifferent to high and low temperatures, exposure to aggressive environments, a special external coating provides protection against corrosion. If you equip a metal door with an anti-burglary system, the house will turn into an impregnable fortress. And modern finishing capabilities allow you to realize any design ideas. For example, thanks to cladding with solid wood panels, a metal door will become indistinguishable from a wooden one.
But this option also has a weak point: thermal insulation. To prevent the metal door from freezing in winter and trapping cold air, manufacturers have developed several constructive solutions. They will be discussed further.
Entrance metal doors to a private house are insulated in different ways. Let's talk about the most popular ones.
- Tambour device. A metal door is installed as an external door - it performs protective function. In order to create thermal insulation, a second door is installed, which can also be made of metal, wood or metal-plastic. Cold vestibule helps eliminate the cause of freezing - the temperature difference between inside and outside. But such a solution is labor-intensive and not always feasible, especially if the house has already been built. In addition, the vestibule takes up useful space.
- Installation of an electrically heated door. Along the perimeter of the canvas and inside the box, as well as along the contour of the locks, they lay electrical cable. The heating system protects the metal door from the formation of frost and ice even in severe frosts, and condensation does not appear on it in spring and autumn. The only, but significant, disadvantage of this option is the increase in energy costs. And if there are power outages in winter, the door will instantly freeze.
- Installation of an entrance door with a thermal break. A metal door to the street always has standard insulation. But it doesn't cope with severe frosts, not uncommon for middle zone and northern regions of Russia. Manufacturers found a solution: they created doors with a multi-layer thermal insulation cake. It performs the same function as air bag in a cold vestibule: levels the temperature difference between inside and outside.
Reference
Thermal break is physical phenomenon, which occurs at the interface of materials with different thermal conductivity. In the construction of doors, PVC, polystyrene foam, mineral wool, and foil-clad isolon are usually used. These materials serve as a barrier to cold air and do not allow it to penetrate into the room. Thanks to thermal break inner surface the door retains heat even if it is -25°C outside.
Entrance metal doors with thermal break are compact and easy to install. They successfully solve the same problem as an unheated vestibule, but unlike it they save space. The only drawback of such doors is their higher cost compared to the traditional option.
What to look for when choosing an insulated entrance door
As you can see, a design with a thermal break can be considered the best option for an entrance door for a country house. This popular solution is in the collections of many manufacturers, but not all models are able to meet the requirements of the owners. Reliability, thermal insulation properties and others performance characteristics doors depend on its design features and should be taken into account when choosing.
Steel thickness
The door leaf is made from steel sheets different thicknesses. On the one hand, the use is subtle sheet metal reduces the cost of the design, on the other hand, reduces its reliability. A door made of steel less than 1.2 mm thick will not protect against intruders: it can be hacked without using complex instruments. To completely protect your home from uninvited guests, choose sheet metal no thinner than 1.5 mm.
The same applies to the door frame: the thicker the metal, the higher the reliability. IN best models it is made from steel profile thickness of at least 3–5 mm.
Thermal insulation material
It is its properties that provide the thermal break effect. Therefore, how well the door will retain heat depends on the material. The more thermally insulating layers the cake contains, the better it smoothes out temperature changes. Quality doors with a thermal break have 4–6 inserts (for example, twice alternating foil-coated isolon and polystyrene foam). The total thickness of the thermal insulation cake is at least 4 cm.
- Expanded polystyrene It is especially often used in the design of insulated street entrance doors. This is a lightweight, durable, non-flammable material with low thermal conductivity, and can also withstand any temperature changes. In the manufacture of input street doors with a thermal break, at least two layers of polystyrene foam are usually used.
- Izolon(foamed polyethylene) coated with aluminum foil is also often present in the design of insulated doors. He has excellent thermal insulation properties, lightweight, elastic, environmentally friendly. The material is laid in two layers, with polystyrene foam or other insulation placed between them. The foil creates the effect of a thermos, reliably retaining heat inside.
- Mineral wool thermal conductivity is comparable to expanded polystyrene. It is environmentally friendly and perfectly insulates noise.
- Glass wool sometimes doors are included in the thermal insulation pie. The advantage of the material is low cost. However, it is better to avoid this option: in hot weather, glass wool heats up and releases toxic substances.
- Cork sheet- material with excellent performance properties. It is natural, safe, durable, provides good heat and sound insulation, and is not afraid of temperature changes. But despite all the advantages, this is an extremely expensive material.
Stiffening rib
Stiffening ribs increase the resistance of the door leaf to different types of loads. They are horizontal and vertical. The former provide resistance to pressing, the latter do not allow the upper or lower edge of the canvas to be bent. The most reliable doors are equipped with a combined vertical-horizontal system of stiffeners.
Reinforced hinges
Reinforced hinges are required to hold a heavy metal door. They also provide additional anti-burglary protection. Hidden cylinder hinges have the best properties. They endure heavy weight doors prevent it from sagging. Hidden hinges almost impossible to knock out or cut. Their disadvantage is that they do not allow the door to be opened more than 90°.
Lock
A door's resistance to burglary is half dependent on the properties of the locking mechanism. There must be at least two locks and preferably a lever type (the cylindrical mechanism is not so reliable, its elements are prone to freezing). It is worth paying attention to the burglary resistance class: for a metal entrance door to a house, choose III or IV.
Presence of anti-removal pins
To increase reliability, iron entrance doors for private houses are equipped with anti-removal pins. They are fixed in the end part of the canvas and, in the closed position, fit into the openings of the box. Thanks to anti-removal pins, an attacker will not be able to remove the door, even if he manages to pick the lock or cut off the hinges.
Exterior finishing
Exterior finishing should not only give the door an aesthetic appearance, but also protect the metal from corrosion and withstand exposure to precipitation, sunlight, heat and cold. These properties are optimally combined with hammer painting - the most common type of coating.
Doors finished with natural wood are very beautiful, but not affordable for every owner. Materials that imitate solid wood (chipboard and the like) are not able to withstand external influences and quickly become unusable.
Manufacturer
Insulated doors using thermal break technology are produced by many Russian manufacturers. Several brands are particularly popular among customers. Among them are “Nord”, Torex Snegir, “Argus”, “Guardian”, Termo, “Bravo” (Optim Termo series). When purchasing products from any of these brands, you can rest assured of quality.
Cost of an entrance door with a thermal break
Entrance doors with a thermal break for a country house presented in three price categories - economy, business and premium. The average cost of products ranges from 20,000–35,000 rubles. The price is influenced by the following factors:
- Steel thickness. Economy class doors are made of metal sheets with a thickness of 1.2–2 mm, premium ones - up to 5 mm.
- Number of layers of heat-insulating material. IN inexpensive doors 3 layers are used, in premium products - 6 or more.
- Filler type. Expanded polystyrene, mineral wool, isolon are standard materials. In models of the upper price category, cork filler is also often used.
- Finishing. In doors of the economy and business categories, MDF with PVC finishing, veneer, eco-veneer, laminated. Premium class products are lined with natural solid wood from the inside. Inexpensive options The outer covering is mainly represented by artificial leather. More prestigious models are painted with hammer paint in two layers, decorated with patterns, steel plates, and forged elements.
- Hardware manufacturer. In the manufacture of thermal doors, locks, handles and hinges of domestic and foreign production. Russian fittings are inexpensive, although the quality is sometimes not inferior to Italian ones.
- Availability of additional anti-burglary elements. A second lock, anti-removal pins, armored linings and other means of enhancing protection increase the cost of the door.
- Purchase method. Russian manufacturers thermal doors sell products through company stores, dealer networks, and also through intermediaries. By purchasing directly, you can save up to 40% on average.
Among all types of entrance doors for a private home, metal doors with a thermal break seem to be optimal in terms of warmth and reliability. Modern models have different variants external design, are equipped with anti-burglary protection systems. The cost of an insulated door depends on a number of design features.
Where can I buy an entrance door, including one with a thermal break?
“You can buy an entrance door in a company store, in a construction hypermarket, and even online,- says a representative of the Bravo factory. - But it’s more profitable to purchase from manufacturers, especially if you need a wholesale batch: bypassing intermediaries, you can save up to 40%. In addition, manufacturers know everything about their products. At the factory they will tell you about the materials, the installation features, and the rules for operating the doors, show you certificates, and introduce you to the full range.
For example, the catalog of the Bravo factory contains almost 400 door models, including entrance doors with a thermal break. Products manufactured under the Optim Thermo brand have 6 (!) layers of thermal insulation, 3 sealing circuits, and are designed for temperature Range from -45 to 40°C. The doors are equipped with burglary-resistant locks with armored linings, anti-removal pins, ergonomic handles and three groups of wear-resistant
Editorial opinion
When choosing an entrance door to a private house with a thermal break, do not forget that the fittings should have similar properties. Locks and handles are the weak points of the structure: they are less protected from freezing than other elements. High-quality insulated doors are equipped with fittings with thermal protection: a layer of thermal insulation is provided at the junction of the outer and inner handles, and the locks are closed with curtains.
