Today, more and more private houses are being built with flat roof contrary to tradition. The implementation of such a project has only advantages: the roof does not “eat up” the space and allows you to implement the most daring ideas. Solarium, picnic area, blooming garden... When choosing a flat roof, you should pay attention to its many other advantages.
First of all, this is the cost. After all pitched roof takes up to 60% of the volume from your space, and, moreover, adds to roofing materials. And today, land prices are rising rapidly, especially in times of crisis. However, do not rush to give up on your dream home. It is only necessary to intelligently use every square meter during construction. And then the choice between flat and pitched roofs for country house it won't be that hard to do.
Blooming roof
Looking back into history, it becomes clear that the idea of a serviceable roof is not new. Even before our era, during the Hanging Gardens of Babylon, flat landscaped terraces were used. Later, architecture developed according to the principle maximum use under-roof space and accessibility for all segments of the population. So, in the 19th century, the German inventor Karl Rabitz built a vegetable garden on the roof of his house, growing vegetables, aromatic herbs and even flowers.
However, in Europe, back in 1630, the French architect Francois Mansart was the first to design a steep roof with a kink. This made it possible to arrange habitable premises under its rafters and place an attic there. This solution has become traditional for Russia, especially since in the 19th century attics began to become popular as housing mainly for the poor. However, by the 1930s, architectural views on roof space had changed. All more projects with a flat roof began to appear on the European and Western markets. The most famous is the “House Over the Falls”, created by the famous architect Frank Lloyd Wright. This country cottage, built between 1936 and 1939, immediately became a standard of organic architecture. It is located in a picturesque area, and its multi-level console balconies naturally hang directly over the waterfall.
Exploitable roofs and terraces were actively used in the projects of the great Le Corbusier and became not just a tribute to fashion, but also a fundamental principle of modern architecture. Now this trend is more popular than ever all over the world. There are at least 8,000 green roofs in New York City. And in some countries, such as Germany, for example, “green” roofing is a necessary legal requirement.
Humanity has always strived for comfort and maximum efficiency used space. A flat roof makes it possible to have a full room underneath, but also to use the roof area for many needs. Here you can arrange sports ground or a relaxation area with sun loungers, a flowered veranda or a picnic area.
Price advantage
From an economic point of view, a flat roof is more profitable than a pitched roof. After all, a smaller area will require significantly less building materials, and the volume of construction and installation work will also be reduced. In addition, the production of sheet and piece materials for a pitched roof rather than a flat one.
When designing a roof with a kink, engineering calculations are required for the rafter system, snow curbs, and wind loads with the resulting “sail effect.” And these are additional expenses for the customer.
The inconvenience of installation and unsafety during it also complicate the construction of a pitched roof. Much easier work are carried out on a flat roof. Workers do not need to periodically lift necessary materials– everything is at hand on a flat horizontal surface. Unlike laying tiles individually on a pitched roof, installing the roof covering on a flat roof will also save time.
Weather exam
Roofs country houses“experience” heat, rain, snow, and wind. Which roof will protect you from the elements more reliably: flat or pitched? In the case of a pitched roof, water drainage is better. But for this it is necessary to provide hangers for drains, drainpipes, drainage gutters, gratings for them and many other devices. And in a combination of rain and strong wind, a roof with a slope may not cope with the task of drainage. For a flat roof, the water drainage system is not so complicated and requires fewer measures. It is enough to install a curb and a drain hole.
Of course, moisture will inevitably remain on a flat roof according to the laws of physics. But high-quality waterproofing should work here. It is a fact that rolled bitumen materials become very hot under the scorching sun. Another thing is modern waterproofing materials, such as LOGICROOF polymer membranes from the TechnoNIKOL company, which will protect the flat roof of your cottage from leaks. Membrane gray heats up less, and for maximum energy efficient roofing there are polymer membranes white. The manufacturer's warranty is 10 years with a service life of 25-30 years. This material is certified in accordance with European standards. Get long lasting reliable roof quite realistic if you use one of ready-made solutions for waterproofing, developed by TechnoNIKOL, all elements of which work as a single whole.
Clearing snow from a pitched roof is a labor-intensive and often dangerous task, requiring insurance and special device. Also, accumulating on the roof, snow, and subsequently icicles, pose a danger to the owner, his family and property, for example, to a car left near the house.
To absorb the load from the weight of heavily fallen snow on a roof without a steep slope, you need to take care of well-designed load-bearing structures. But it won’t be easy for a cottage owner to get rid of snow on a flat roof on his own. special labor. In addition, you don’t have to worry about excess moisture from melted snow on the roof. Modern and high-quality waterproofing, as well as its highly qualified installation, can cope with them. Moreover, TechnoNIKOL has special products for waterproofing in areas where there is rainfall. a large number of snow. The LOGICROOF V-RP Arctic PVC membrane is just such a material, intended for use in cold regions. Insulation materials LOGICROOF are easy to install, they do not require special measures during operation, are protected from ultraviolet radiation, and have increased fire resistance and durability.
Flat roofs are modern, technologically advanced, interesting, and safe. They always attract attention with their originality and novelty. By making a smart choice in their favor, you will not lose in comfort and functionality. And using advanced materials from TechnoNIKOL, you will protect your roof for long years. The company’s specialists are confident in this, based on their experience in installing flat roofs for cottage construction.
An example is the elite premium-class village “Olshanets-Park” near Belgorod, where materials from the TechnoNIKOL company were used during construction. Namely, the roofs of 14 country houses are reliably protected by LOGICROOF PVC membranes.
How can you not? better idea with flat roofs suitable for implementation in southern regions. Another facility where LOGICROOF products were used is the low-rise cottage complex "Cote d'Azur" in Sochi. It is successfully integrated into the natural terrain, and its open terraces emphasize the recreational function. In addition, the roofs of the townhouses and apartments of the complex are thoroughly protected by TechnoNIKOL insulation systems from the scorching sun and heavy rains characteristic of a subtropical climate.
By choosing LOGICROOF polymer roofing membranes from TechnoNIKOL, you receive not only a high-quality and durable modern protective system, personal service, individual approach, but you are also one step closer to making your dream country house a reality.
For many people, the name “flat roof” is associated primarily with multi-story buildings. Flat roof- the pros and cons of which we will consider in this article - was practically not used in low-rise construction a dozen years ago. However, today the creation of such a roof in country house is not a problem: modern materials and technologies make it possible to create flat roofs with appropriate consumer characteristics and at an affordable price.
- A flat roof is significantly smaller in area than a pitched roof, which allows you to save on materials and construction work.
- Thanks to the relatively smaller area of the flat roof, it is possible to optimize costs.
- The construction of a flat roof is carried out easier and in a shorter time, in comparison with a pitched roof, since necessary materials for installation, they are located directly at the workers’ feet on a flat surface. The same can be said about the repair and maintenance of a flat roof - working on an almost horizontal roof is incomparably more comfortable than on a sloping one.
- On a flat roof, installation and subsequent service work with all kinds of equipment (air conditioning systems, solar panels, antennas, etc.).
- The use of a flat roof is an opportunity to obtain additional useful territory, which can be used as a place where you can relax on fresh air, play sports, create a garden, flower garden, etc. Today, there are technologies that make it possible to cover the roof even with paving slabs or paving stones. Roof, paved beautiful tiles, in combination with a green lawn, garden furniture, a gazebo and a fireplace, can become a place for a comfortable family vacation.
Houses with flat roofs are very popular now
A flat roof, in addition to its advantages, has a number of disadvantages:
- As a result of heavy snowfalls, a lot of snow accumulates on flat roofs, which, when melted, often causes leaks.
- Sometimes the use of internal drains is required.
- There is a risk of the internal drain becoming clogged or freezing.
- There is a need for mechanical cleaning of the roof from too large accumulations of snow.
- Regular monitoring of the moisture content of the insulation and the tightness of the roof is necessary.
Types of flat roofs
There are four types of flat roofs:
Flat roof base
In accordance with building codes, a flat roof, the pros and cons of which we discussed above, must have a base in the form of reinforced concrete floor slabs or corrugated sheets.
Subtleties of waterproofing
The durability of the roofing structure and its resistance to various negative influences depends on the use of special mixtures and technological processes production of roofing materials. Depending on the roofing materials, they are usually divided into three categories:
- Bitumen roofs, as well as polymer-bitumen based on roofing felt. These materials are available due to their low cost. Fused bitumen-polymer compositions are roll waterproofing and roofing sheets based on synthetics, on both sides of which special bitumen is used, which retains elasticity even under extreme conditions. low temperatures(up to -50 degrees Celsius). During installation of waterproofing carried out using gas burners, the rolls are fused together. Roof waterproofing can also be carried out with self-adhesive materials based on polymers and bitumen. In this case, the mastic is applied to the bottom surface of the roll and, when treated with a solvent, acquires the properties of glue. The disadvantage of bitumen roofing is its fragility.
- Membrane roofs with a base made of foil, rubber or polymers. This material has solid strength and is resistant to fire and other negative environmental influences. The membranes are glued to the screed or simply lie on the base, being loaded with ballast, or are attached mechanically or using glue. To connect membrane sheets, special welders, holding the material together with hot air.
- Roofs based on liquid polymers, which after cooling do not form seams. Such materials are especially often used for structures with complex geometries.
It is very important to do proper waterproofing flat roof
Whatever material is chosen, the joints between the rolls and the junctions with various roof elements must be waterproof. One of the main components of a successful waterproofing device is a high-quality sealant. During the period of operation, the roof is subject to negative influences of the external environment (moisture, hail, stones, strong temperature changes, etc.). Therefore, a high-quality sealant must be resistant to mechanical and temperature influences.
Mastic is usually used as a sealant - putty, which is based on elastic polyurethane resins. After application to the roof, the mastic polymerizes, resulting in the formation of a continuous rubber-like membrane that has waterproofing properties and protects the roofing from mechanical damage.
Mastic is ideal for flat roofing, it is safe, has high adhesion to building surfaces, and is highly resistant to ultraviolet radiation, precipitation and all kinds of microorganisms. It is applied by brush, roller or airless spray- two multi-colored layers, which allows you to control the quality, layer thickness and uniformity of sealant distribution.
How to arrange water drainage
Regardless of the materials used, a flat roof must have a certain slope to drain water (usually within 3-5%) that appears on the roof as a result of precipitation. The drainage system should be thought out at the building design stage. Gutters determine how effectively moisture will be removed from the roof surface. To prevent gutters from freezing in winter, they are equipped with special thermal cables.
Drains can be organized, when both external and internal water supply is created, and unorganized. When creating an internal water supply system, the roof surface is divided into approximately equal parts of 150-200 square meters every. In places with a slope, drainage funnels are installed, equipped with baskets for catching debris. Typically, funnels are located in the center of the roof, and the pipes are located inside the building.
Rules for insulation and vapor barrier of a flat roof
A flat roof needs insulation. In the absence of a layer of thermal insulation, condensation forms on the roof surface as a result of the contact of warm air masses and the cold surface of the roof. Condensation appears as water stains on the ceilings of the house, and the roof structure gradually collapses.
The roof design involves a base on which a layer of vapor barrier material is laid. The function of a vapor barrier is to protect the insulation from diffuse moisture coming from the premises of the building. The vapor barrier layer includes fiberglass reinforced membrane (based on bitumen and polymers) or vapor barrier film. The layer is laid on top of the screed, and along the edges of the roofing structure it is placed vertically to a height exceeding the height of the insulating material. The seams are sealed.
Insulation is placed above the vapor barrier layer, and a bitumen-based waterproofing carpet is placed on top of it. If expanded clay is used as insulation, then it is necessary to make a cement screed over it, then laying a couple of layers of waterproofing. If the roof is planned to be light (in the case where significant loads are not expected on it), then the waterproofing is simply glued along the entire perimeter of the roof.
For roofs without attics, both external and internal method insulation. External method is used more often, so its execution is easier. There are two options for thermal insulation: double-layer and single-layer. The decision about which option to use in practice depends on heat engineering calculations and roof strength requirements. Thermal insulation slabs are placed on the roof structure based on the principle of “staggered seams”. With a two-layer coating of thermal insulation, the joints of the lower and upper slabs are also separated. In the area where the slabs adjoin the parapet, lanterns and walls, thermal insulating edges are created. Thermal insulation materials are attached to the base mechanically(screws, dowels), ballast (pebbles, paving slabs) or glue.
Features of roof ventilation
The roof structure must be equipped ventilation system. As a result of a violation of the tightness of the vapor barrier layer, moisture enters the insulating layer. A thick layer of waterproofing prevents evaporation from occurring, and moisture accumulates in the insulation. As a result, the material loses its insulation characteristics, and moisture appears on the ceilings of the building in the form of stains. In addition, water causes the waterproofing to swell, and at low temperatures, freezing water tears the waterproofing material away from the base. Temperature changes and mechanical damage contribute to the formation of cracks in the roof, which results in roof leaks.
To avoid these problems, the roof must “breathe”. For this purpose, aerators are used - special devices in the form of plastic or metal pipes. They are covered with umbrella caps and are evenly distributed throughout the entire roof area, gravitating towards its highest points. The aeration mechanism works based on the principle of different pressures, which are created by air flows, removing excess moisture vapor from under the roof and preventing water bubbles from forming.
The installation of a roof is a responsible technological operation. Any, even minor, mistake in the design or construction of a roof can cause it to leak in the future. Therefore, when creating a roof, you need to pay attention Special attention correct selection hydro- and thermal insulation materials, accurately calculate upcoming loads on roof structure, and also choose a team of competent builders.
Still an unusual decoration country cottages– flat roof. It is believed that flat roofs are intended only for urban development or industrial buildings. But that's not true. The roofs of houses in historical neighborhoods are often pitched. And a private house can have a flat roof.
Now we will look at what it is, what are the advantages/cons and how to make a flat roof with your own hands.
Types of flat roof
Structurally, flat roofs are divided into two main types: on beams and those with a base concrete slab.
Flat roofs are never completely flat; there is still a slight angle (within a few degrees). This is necessary for water drainage. Otherwise it will stagnate on the roof.
Most often, internal drains are installed on flat roofs: funnels are mounted in the roof, risers from them pass through interior spaces. Funnels are placed on the lower part of the roof, at the rate of one riser per 150-200 square meters.
The waterproofing around the funnels is reinforced; cable heating is also recommended (so that the water in the riser does not freeze). If the roof is flat without a parapet, and the angle is decent (from 6 degrees), the drainage system can be a standard external one, as for pitched roofs: gutter and pipes.
Roofs are divided according to functionality, roofing structure and type of coating. Here are a few main varieties:
- The unused roof is flat. It is built solely for the sake of originality and saving material. Does not require structural reinforcement.
- Operable flat roof. It can be used for any purpose, from placing an outdoor swimming pool to constructing a parking lot.
The type of floor depends on the intended purpose: it is obvious that for high expected loads, the base should be a concrete slab. But this does not mean that the entire building must be brick or concrete. For example, a flat roof in wooden house can also be exploited. Of course, it cannot be used as a helipad, but setting up a solarium, laying out a garden or putting up a gazebo for tea drinking is fine. Of course, you can’t make a sparse sheathing, only a continuous one.
- Traditional roofing. The classic design of the roofing pie: a waterproofing layer on top of the insulation, the base is concrete, for the outflow of water - expanded clay concrete (inclined screed).
- Inversion roofing. Here the insulation lies on top of the waterproofing and protects it from damage. The floor can be finished with paving or ceramic tiles, you can also plant a lawn here. Mandatory requirement to the inversion design - an angle of 3-5 degrees.
Roofs can be attic or non-attic. Both types have their advantages: the presence of an attic allows you to place all the necessary communications on it ( ventilation pipes, expansion tank heating, etc.), a roofless roof can be made usable.
One of the options for a roofless design is a flat combined roof: attic floor combined with the roof, the lower side is the ceiling in the living room.
note
The design of these roofs differs from simple attics; they cannot be used for use.When the height of the house is ten meters or higher, as well as on roofs in use, a parapet must be installed. For those in use - no less than 1.2 meters.
If the roof is not in use and the cottage is not high, you can make a flat roof without a parapet or install fencing bars instead, or even do without them.
General structure of a flat roof
It is obvious that in exploited roofs for various purposes the device will be different:
The most common covering is flat roofing. It is cheap, simple and high speed installation, excellent waterproofing. Most cheap material, which can be used to cover a flat roof - roofing felt.
Flaws roll materials(and roofing felt in particular) – low durability, low mechanical strength. For “high traffic” roofs, tiles are preferable.
A flat roof made of and a flat roof made of corrugated sheets can only be made in a non-operational version and if there is required slope. When choosing a material, you need to read the instructions for the model: some types of corrugated sheets and metal tiles allow installation on roofs with a slope of less than 11 degrees.
Some brands of corrugated sheets can also be used as a base for an unused roof, instead of plywood or a concrete slab.
There are other coating materials for unused roofs:
- Polycarbonate;
Pros and cons of flat roofs
Advantages:
- Original look. Flat roofs on cottages are rare.
- Possibility of operation.
- Flat roof – easy installation and savings on materials. But it depends on how you plan to use the roof. Otherwise, construction will cost even more than an expensive pitched roof made of ceramic tiles.
- Laying covering, maintenance, and repairs on a flat roof are easier to perform than on a slope.
- Flat roofs are wind-resistant, pitched roofs have windage.
Minuses:
- A flat roof leaks more often than a pitched roof. Constant monitoring of the condition of the waterproofing layer is necessary.
- The need to clear the roof of snow.
- Rolled flat roofing requires more frequent repairs and changing the coating than metal profiles, tiles and other pitched ones.
So which roof is better, flat or pitched? Purely a matter of taste.
Building a flat roof
Let's consider the option when a corrugated sheet is used as the base of the roof:
1. Sheets are laid on the beams (rafters). The pitch between the rafters depends on the profile. For example, for load-bearing profiles with a corrugation height of 6-7.5 centimeters (H60, H75), the step between the beams is 3-4 meters.
2. Laying a vapor barrier film. The film is laid with an overlap, the joints must be sealed with mounting tape.
3. Thermal insulation. Mineral wool slabs are usually used for this purpose. Please note that the depressions of the corrugation also need to be filled with insulation.
4. Waterproofing. Polymer film is suitable for this purpose. If the insulation is mineral wool, you can also use built-up waterproofing, because cotton wool is a non-flammable material.
5. Finish coating. You can also use a welded one. The roll is slowly rolled out on the roof, heating it with a burner along its entire length. The deposited coating is pressed against the roof and smoothed.
6. On flat roofs, a fused roofing can be laid in several layers.
In other cases, a flat roof on wooden beams is arranged more traditionally: a solid plywood or OSB sheathing is nailed onto the beams, a roofing pie is laid (vapor barrier + basalt wool), direct the waterproofing layer and roll roofing.
If you are interested in a flat roof with a more complex structure, contact us: we will complete roofing of any complexity quickly and at an affordable price.
One of the most important parts of the house is the roof - its quality determines the warmth and comfort, noise level and frequency of repairs of the building.
Naturally, when planning a development, the question arises, what type of roof to choose, or which roof is better - cheaper, more expensive, broken or gable, or maybe hipped?
It is not enough for a roof to be simply durable and attractive. She still has to be near important properties: provide good protection from rain and snow, protect from heat and cold, be fireproof. Let's look at the main types of roofs and their characteristic features, because the choice of roofing material depends on the type of roof.
Main types of roofs
- Flat roofs. They are usually erected above utility and utility buildings, garages, bathhouses, sheds, as well as houses with a terrace on the roof.
- Pitched roofs. This type of roof is more widespread, and there are several classifications of pitched roofs, one of which we will present below. Among other things, pitched roofs can be divided into warm and cold, with an attic and without an attic.
Let's list the main design varieties pitched roofs.
- Shed roofs
Their surface is a plane resting on opposite walls of different heights, i.e. is at an angle to the horizontal. - Gable roofs
They consist of two planes located at an angle and rest on opposite walls of the same height. This is perhaps the most common type of pitched roof. - broken roofs
A type of gable roof in which each slope consists of two rectangles located at an obtuse angle. - Cross-shaped roofs
They are a combination of several ordinary gable roofs, as if cut into each other at right angles. - Hip roofs
This hipped roofs with two long trapezoidal slopes and two short triangular ones. - Half hip roofs
A type of hip roof, sometimes called a Dutch roof, in which the end slopes do not reach the eaves. Thanks to this design, the house is better able to withstand the wind, and its gables are less exposed to precipitation. - Hip roofs
A type of 4-slope roof, consisting of four equal slopes of a triangular shape.
When choosing a roof type, you should consider not only its intended operational properties, but also decorative qualities. In low-rise buildings, the roof has a large relative volume and its appearance largely determines the architectural solution.
In private houses, mainly the roofs of high structures are erected. This allows you to build an attic, and the house takes on a more presentable appearance. Also, steep slopes do not allow water and snow to linger on the roof. In areas with strong winds It is preferable to build low roofs or high ones, with additionally reinforced rafter systems.
You should also consider which roof the developer can afford. Naturally, the roofs are more simple designs cheaper, and the most economical options are flat and pitched roof. An additional convenience of a pitched roof is that it allows you to increase the internal volume of the building, and outbuildings at the same time serve as a ceiling.
If attic space will be used for household needs, it is better to build gable roof. In areas with strong winds best choice There will be a type of hip roof, but its construction will not be cheap. In addition, the construction hip roofs requires high professionalism, and should only be trusted by experienced craftsmen.
In houses complex shape As a rule, cross-shaped roofs are used. This is enough complex design, consisting of many intersecting slopes. The difficulty of constructing a cross-shaped roof is to ensure tightness internal corners roofs. Such roofs are expensive, they must be built experienced craftsmen and always made from quality materials.
Roof structural elements
After choosing the type of roof, you can begin selecting materials. Therefore, let's get acquainted with the main structural elements roofs:
- Basic structure. Its type depends on the type of roof. It is usually constructed from wooden beams and rafters.
- Roof base. It can be constructed in the form of a lattice or be solid.
- Hydro- and heat-insulating layers.
- Roofing material.
Rafters and their types
Rafters perform an important function in the roof structure. This is a support for the sheathing, taking on not only the weight of the roof, but also the wind load, as well as snow pressure.
- hanging, used for long spans;
- inclined, used for span lengths up to 6.5 m. With additional support, the span length can increase to 12 m.
The design and construction of rafter systems is work that requires great qualifications. Its quality determines the load-bearing capacity and, consequently, the strength of the roof.
Roof bases
The type of base for the roof is selected depending on the intended roofing material.
There are two main types of roofing base:
- sheathing(used for roofing made of metal tiles, slate or metal profile)
- solid flooring(when using rolled materials)
Continuous flooring is constructed from two layers of boards. The first layer is called working, and the second – protective. The latter is located at an angle of 45 degrees relative to the worker and is constructed from narrow boards. Between these layers a windproof material is placed, usually roofing felt RRP-300 or 350.
When installing the sheathing, a number of rules are observed:
- all sheathing elements are securely fastened to the rafters;
- their joints are located staggered on the rafters;
- the distances between them must be maintained over the entire surface of the roof being constructed.
Roofing materials and works
The top part of the roof is called the roof. She is in direct contact with external environment, taking on the full power of wind and precipitation. Therefore, the main qualities that it must have are strength and water resistance.
There are many roofing materials, and when choosing one, you should consider it performance characteristics, as well as a number of other factors:
- climate;
- functional purpose of the building;
- durability of the material;
- material cost;
- its noise-insulating and heat-saving properties;
- labor intensity and cost of roof maintenance;
- external attractiveness of the material.
It is difficult to give unambiguous and comprehensive advice on choosing which roofing material will be best, since it is influenced by all the listed factors, and ideal building materials, as we know, do not exist. In addition, the determining criteria may differ, for example, if there is insufficient funding, the price becomes the main thing, and all other factors are considered less meticulously. On the contrary, if consumer properties come to the fore, then price, as a rule, is not of decisive importance. For some, perhaps the main factor will be beauty or color, since according to the owners, the house should not be similar to the others.
The choice of material should be made at the stage of creating a house project, since the type of roof structure depends on it, and changes should be made to finished project it will be difficult and expensive.
conclusions
Selecting a roof structure and roofing material is an important stage in building a house. Find best solution is possible only by taking into account a number of factors:
- purpose of the building;
- noise insulation and heat saving characteristics of the roof;
- construction budget;
- climate features;
- aesthetic impression.
Only by taking into account the listed factors and weighing each of them can you choose best option roofs and type of roofing material.
Well, it’s not a dispute, of course... I just don’t understand the principle of traditionalism without an explanation of its usefulness and profitability and profitability...
and if my friendline indicates that earlier in ancient times there was little technology for making roofs that don’t leak, and therefore one of the advantages of pitched roofs that you mentioned, “Accelerated water flow due to a greater slope,” was important, then how does this affect it now???
Let's clarify what you noted again:
1. Accelerated water flow due to a greater slope (ok... but please highlight the advantage of this, for example, for a thatch roof this is certainly relevant... but in general???) Are we planning tropical monsoons in our country?
2. Simple organization drainage (wow simple! ... or simple in the sense: the main thing is that it flows?)
3. Lack of snow bags (I protest! ... there is no logical justification for their occurrence)
4. Convenient roof maintenance through the attic space or attic
(note... to look at the clearance or observe leaks... and then a very important addition... if the roof is made of anything, and by the way, in the case of those specified by you attic premises Doesn't this lose its meaning?).
5. When designing an attic floor, there is no need to erect external walls (it is important to understand that an attic is already a consequence of making a decision about a pitched roof... first there were pitched roofs and only then they came up with attics... not the other way around. Let’s not mix things up....) (at the same time I agree that whoever is in private architecture instant loan now has conceived additional meters “a la the second floor” - this solution may turn out to be... although not. need to be counted.)
I agree with these disadvantages.
On flats:
by cons
3. The risk of clogging or freezing of the internal drain - (if at least with some stretch you can agree with the first part... then the second part is not clear in principle... in what case can the internal drain freeze?)
4. The need to mechanically clear the roof of snow (I protest!) If pitched roofs with their icicles and other hemorrhoids constantly bring problems and troubles, then in the case of flat roofs I don’t know of such cases.
I'm adding to the list. (or maybe I’ll just repeat it for now)
1. - the installation of pitched roofs is an entire art (rafters, sub-rafters, ridge, beams, sheathing and many others...
1.1. - V flat insulation I fell asleep, put the roof on top and that’s it,
- in pitched structures, re-laying, etc.)
2. cleaning...
- on flat ones, even ride a snowblower, and without icicles...
- belay in slopes, try not to fall, etc.. risk))
3.rain water...
- in a flat one there is only a border and a hole, ..hmm. well, in a container or.. as well as a bunch of design and innovation ideas.
- in pitched... hangers for drains, drainpipes, drainage gutters (s) with gratings near the house and the whole complex...
4. wind
- for flat ugh...
- for pitched art, there is no sailing, etc.
(there was a storm in Irkutsk recently, in the news feeds you can see how many stingrays ended up on the ground and what damage they caused)
5. for alternative, embryonic and still irrelevant energy, flat is better suited...
also more convenient for flat mounting and engineering equipment, such as antennas, deflectors, air conditioners, etc.
6. according to Discovery, a contender for inclusion in the top three best projects- turning roofs into beds or flower beds, finally...
and much, much more... what a word. I can't come to an opinion