Today, the calculation of the roof is required in two cases: the dismantling of the ceilings in the houses of the old type or the final work that is being carried out during the construction of the new house. Despite the fact that these cases are so different, the calculation system for them is unified, however, like the building materials that are used in this case.
It is worth noting that, remodeling the old roof, in no case can you build it on its former counterpart. Firstly, this is a loss-making occupation, since the logs with which the roof was previously blocked are now extremely expensive. And secondly, the new technologies for building a rafter system are universal, they give a minimum load on the walls and foundation of any building.
So, if a house that needs a new ceiling was built about forty years ago, then you can safely prepare the calculation of the roof based on the mass of a wooden beam or a planed board. These materials will become the skeleton basis of the new floor, as they are hardy, durable, and at the same time lightweight and excellent to process. An important factor is also the price of these wooden building materials. The bar refers to more expensive goods, and it is more difficult to lay it on the roof. But the standard board, which has a sufficient width, is an excellent alternative to any expensive material.
The calculation of the roof of a standard type roof can even be done by a layman in the matter of construction and repair. A diagram of the formation of supporting structures to which the rafters are attached is available on any construction site or in repair magazines. The main thing is to have all the necessary tools, the proper amount of building materials and ingenuity. The roof, which is made of beams or planed boards, is assembled right on the spot, so you won’t have to shoot down such a bulky structure and then lift it up.
More complicated and extraordinary will be the calculation of the attic roof. Such a design should be as strong and reliable as possible, therefore, the rafters are mounted on their bases differently than when building an ordinary roof. The basis is the logs that are fixed on the walls. It is important not only to install them correctly and firmly, but also to connect them together. Then, in the gaps that formed between the lags, vertical racks are fixed, which will form the basis of the attic floor. They must also be fastened together, and if necessary, strengthen the design with additional boards. The calculation of the roof of the attic type ends with the installation of rafters on the main structure, as well as skates and ramps.
Calculation of the roof, both standard and attic, also includes the installation of the lathing. To do this, use the most thin and lightweight boards. Then the roof itself is attached to them using ordinary slate nails or self- tapping screws. It is important to remember that the weight and other qualities of the roof can also affect the load that will be placed on the building. It is advisable to choose the lightest finishing materials, but at the same time they should have excellent heat-insulating and waterproofing qualities.