Design and installation of a flat roof

Flat roofs are a successful modern architectural solution that is often used in the construction of industrial and public buildings. In this article, we will tell you where to order the calculation of the roof, get the joints of the PVC membrane and order the device of a flat roof.

Flat roofs are used both in residential buildings and in industrial ones. Such a solution is very popular in the construction of shopping and entertainment centers, as it allows you to arrange terraces, observation decks, flower beds, etc. on the roofs. Recently, flat roofs are often used in the construction of private houses.

The design of any roof in Ukraine, including a flat one, must comply with normative documents DBN V.2.6-14-97 "Covering of buildings and structures" and DBN V.2.6-31:2006 "Thermal insulation of buildings".

The TTrade company offers installation of a flat roof of all types "turnkey" - complex design of the roof, selection of all necessary materials at optimal prices, construction and installation works and full equipment of the roof in Ukraine.

Advantages of a flat roof

Roofs are flat and pitched. Flat roofs have the following advantages:

Simple to implement;
They are characterized by the safety of installation work;
Allow to save on materials;
Convenient for preventive and repair work, as well as for installation and maintenance of antennas, chimneys, etc.;
They have a long service life;
Resistant even to strong wind;
They allow the roof area to be used for additional purposes - for example, for the construction of terraces for recreation, cafes, flower beds, etc.;
Beautiful and modern.

"Roofing pie": structure and functions of layers

A flat roof is multi-layered, its individual layers perform certain functions. Such a structure is called a "roofing pie". Its composition is determined by the peculiarities of roof operation, loads on it, climatic conditions and other factors.

Functions of individual layers of the "roofing pie":

Slope-forming layer - diverts rainwater or melt water to drain pipes, should prevent the formation of stagnation. A slope angle of 1-1,5% is usually used for this layer. It uses such materials as concrete, expanded clay concrete, etc.
Vapor barrier - prevents the penetration of vapors into the thickness of the "roofing cake", should exclude the possibility of "dew point" formation. It is made from polymer and bitumen-polymer membranes.
Thermal insulation (insulator) - retains heat in the building. Mineral wool, expanded polystyrene, polyurethane foam, foamed glass, etc. are used for the construction of this layer.
Waterproofing - protects the roof and building from moisture penetration. It must provide full waterproofing of the building, have high fire resistance characteristics, be resistant to ultraviolet radiation, have a long service life. Bituminous and bituminous polymer materials, PVC membranes, and liquid rubber are used for its creation.
Drainage - removes moisture from the thickness of the roof. Must have high throughput, be resistant to waterlogging. It uses drainage geocomposite and filtration materials.
Water-receiving elements - drain water both inside the roof and outside. These are various elements of drains: funnels, drain trays, drains, etc.
Weather vanes - provide drainage: vapor removal from the thickness of the roof. These are actually weather vanes, pipes and channels.

Location of the waterproofing layer in different types of roofs

According to the location of the waterproofing layer, flat roofs are classified as follows:

The traditional non-operable roof is an option characterized by the placement of a waterproofing layer directly above the heat-insulating one;
The traditional operating roof is a waterproofing layer located above the insulation. Such can be, for example, the roof of the parking lot.
Inversion roof - in it, waterproofing is placed under a heat-insulating layer. This could be a cafe terrace, a green roof, a rooftop recreation area.

Depending on whether the roof is additionally used or not, its arrangement may differ in other elements.

What to pay attention to when designing a roof

The roof is a rather complex engineering and architectural element of buildings, both residential and industrial. It is characterized by multifunctionality and the presence of various layers, each of which performs an important function. The roof provides not only the protection of the building from precipitation, but also the general comfort of the premises. Therefore, the arrangement of such an essential element as the roof must be treated with great responsibility. When designing the roof, it is necessary to ensure not only its tightness, but also the temperature and humidity mode of operation. The formation of a "dew point" inside the "roofing pie" is not allowed. The circuit of the thermal insulation of the roof must be closed.

It is also important to carefully consider the following details: