Rafter system of a broken mansard roof

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Of course, the installation of a gable roof is simpler than a broken structure, since even rafters are used without additional ties and any bends. But a broken structure allows you to make the room in this part more spacious, and the ceilings are correspondingly higher.

The broken system is much more complicated in execution, calculations and roofing, but it not only creates a more spacious space under the roof, but also gives solidity to the entire structure. Its main difficulty lies in the large number of complex connecting elements. All connections must be made according to technology, otherwise the roof will be unstable.


If the walls are built of brick or stone, it is costa rica mobile database to lay out the frontal parts in advance during the general laying. In this case, in order to create a unique rafter system, aligning with the finished gables, you can install intermediate rafters and special support fastenings to them.

Before purchasing and preparing material for a particular system, it is necessary to draw up a design project with the appropriate dimensions - it will become the main guide for preparing and assembling the elements during installation.

Attic project

When developing a scheme for building an attic, it is better to do this in different projections to clearly understand how the elements of the rafter system will be placed. It is important to correctly calculate what the height of the roof ridge should be, since the size of the area depends on it.

When preparing a design for building a roof for an attic, it is necessary to calculate the height of the ceiling, ridge and the total area of ​​the room.

The minimum height from the floor to the ridge is 2.5-2.7 m, if this distance is less, the room cannot be called an attic, the name attic is more appropriate for it. This indicator is established by SNiP standards.