Ventilation of the roof as a guarantee of its residents longevity and health

Standards device

One of the most important issues is the construction of Thermal Physics of the humidity level in the structure.Its rate significantly affects the thermal conductivity and, as a result, the heat transfer rate.The underestimation of humidity and temperature regime leads to a condensate separation, the accumulation of moisture and, as a result, to the gradual destruction of the structure.The reason for improper ventilation devices can be several factors:

• builders and planners underestimated the importance of ventilation;
• use new designs and materials that are not compatible with the old materials;
• complex regulatory requirements which is not always possible to observe.

To make a normal thermal insulation between rafters must be mounted heater 20 centimeters thick.Thus such thickness may badly affect the design, as rafters, generally, do not have sufficient stability.The decision is to use suspended structures made of metal, which can be placed insulation, which does not fit into the rafters.

known that the thermal insulation of the roof depends not only on the insulation layer, but also on the correct arrangement of ventilation.From the inside to the roof are water vapor, which rise from the heated lower rooms.To solve this problem, you must perform a ventilation gap correctly.The system works like this: the air circulates freely inside the structure and displays all the accumulated moisture.

Note!Ventilation system also allows you to save on heating.

What good roof ventilation?

Today, the domestic market is represented by a variety of materials with the properties of water vapor permeability.The main of them - it superdiffuznye membrane and waterproofing film.There is also a ventilated film, but their use must always be kept in the roof system are two of the gap for ventilation.In this system, the upper deck waterproofing gap winds, and the bottom - truss system.

ventilation following tasks:

• Removing residues of steam, which penetrates from the lower space;
• temperature stabilization at the same level over the entire roof surface.This avoids the formation of ice on the eaves cornices from melting snow;
• decrease in temperature with strong heating of the roof in the sun.

device ventilated roof is that the air flow under the roof was raised up from the eaves to the ridge.Systems of this type are considered to be the best solution, because the air is moving up in a natural way.Basic principles of cold air enters the bottom and exits the top, the maximum effect is achieved when the air flows over the entire inner roof area.

Note!Traditional ventilation through skylights are considered ineffective, and in the case of the attic and does not fit.

negative impact of the lack of ventilation

Ventilated roof - a necessary condition for the proper functioning and safety of the roof.If ventilation is not available, there is a big difference between the indoor and outdoor temperatures, and as a result, condensation.Without ventilation it brings nothing, so it gradually penetrates into the structure, the rafters, the insulation, leading to their gradual destruction.

In addition, there are ideal conditions for the development of mold and mildew.But the most negative - is that if the insulation gets wet more than 5 percent, its heat dissipation is reduced by half. Important!It is well known that the fungus and mildew produce a negative impact on human health, so their education must be avoided.

In addition, as a result of condensation of action begin to break down the wall faster.During the summer, the sun heats the roof, which in combination with the action of ultraviolet radiation significantly reduces the period of soft coating operation.This, in turn, makes the determination on the attics and lofts at this time is not very pleasant.