A pitched roof is the cheapest option;
Posted: Thu Feb 06, 2025 5:29 am
Choosing the appearance of a mansard roof is quite difficult, as it is influenced by a number of factors:
visual effect. First of all, subjective feelings are taken into account. The final choice may fall on another model, but the starting point is here;
living space. The rafter system of a gable roof "steals" space and creates "blind" zones, but a hip roof allows you to use almost all the space of the attic superstructure;
financial possibilities.
roofing material. Some types of roofing material can be used if a certain roof slope angle is maintained. For example, for tiles, the angle should be at least 25o, and for corrugated sheeting PK-100 (wave height 100 mm.) 3-4 o is enough;
general architecture of the building;
wind and snow load. Snow should slide off the roof;
condition of load-bearing walls and foundation. The china mobile database of load-bearing walls can be judged after a visual inspection. The presence of cracks indicates a problem. Using porous material in the construction of a house reduces the wall's ability to withstand the load created by the attic. It is difficult to judge the foundation. But knowing its type and what materials and technology were used in its construction, you can calculate what load it can withstand;
the design of internal communications and ease of connection to them;
choice of windows. Installation of special roof windows (sloping windows - sliding, pivoting, sliding) is carried out directly in the rafter part. They are more expensive, but provide better ventilation. To install vertical windows, you need to build walls or gables. The surface area of light-transmitting structures should be at least 12.5%;
choice of material for construction. The cheapest and most popular option for performing work is the use of wood. Frame construction technology is quite simple. It is a mistake to think that it is unacceptable to build a wooden attic floor. According to SNiP 21-01-97, the use of wooden structures in the construction of an attic floor is allowed with proper processing of wood and a building height of up to 75 m.
complexity of calculations. When constructing a pitched roof, the loads on the load-bearing walls are distributed unevenly. Ignoring this fact will lead to the subsidence of the walls and the destruction of the foundation.
The main roof shapes are shown in the figure.
What types of roofs exist (types, kinds)
Nuance. The smaller the angle where the roof meets the wall, the more usable area you will get.
Some projects of houses with an attic floor are presented in the photo.
visual effect. First of all, subjective feelings are taken into account. The final choice may fall on another model, but the starting point is here;
living space. The rafter system of a gable roof "steals" space and creates "blind" zones, but a hip roof allows you to use almost all the space of the attic superstructure;
financial possibilities.
roofing material. Some types of roofing material can be used if a certain roof slope angle is maintained. For example, for tiles, the angle should be at least 25o, and for corrugated sheeting PK-100 (wave height 100 mm.) 3-4 o is enough;
general architecture of the building;
wind and snow load. Snow should slide off the roof;
condition of load-bearing walls and foundation. The china mobile database of load-bearing walls can be judged after a visual inspection. The presence of cracks indicates a problem. Using porous material in the construction of a house reduces the wall's ability to withstand the load created by the attic. It is difficult to judge the foundation. But knowing its type and what materials and technology were used in its construction, you can calculate what load it can withstand;
the design of internal communications and ease of connection to them;
choice of windows. Installation of special roof windows (sloping windows - sliding, pivoting, sliding) is carried out directly in the rafter part. They are more expensive, but provide better ventilation. To install vertical windows, you need to build walls or gables. The surface area of light-transmitting structures should be at least 12.5%;
choice of material for construction. The cheapest and most popular option for performing work is the use of wood. Frame construction technology is quite simple. It is a mistake to think that it is unacceptable to build a wooden attic floor. According to SNiP 21-01-97, the use of wooden structures in the construction of an attic floor is allowed with proper processing of wood and a building height of up to 75 m.
complexity of calculations. When constructing a pitched roof, the loads on the load-bearing walls are distributed unevenly. Ignoring this fact will lead to the subsidence of the walls and the destruction of the foundation.
The main roof shapes are shown in the figure.
What types of roofs exist (types, kinds)
Nuance. The smaller the angle where the roof meets the wall, the more usable area you will get.
Some projects of houses with an attic floor are presented in the photo.