Do-it-yourself rafter multi-part roof system - arrangement
If the box of the house has not a simple rectangular shape, but is executed in the form of a complex figure with extensions, verandas or dormer windows, it cannot be blocked by an ordinary roof. In this case, carry out the installation of multi-roof. The peculiarity of this beautiful and practical construction is that it consists not of two pediments, as usual, but of 3 or more. The rafter system of a multi-holed roof is different from the standard one, however, with an appropriate level of professionalism, it can be built with your own hands.
The device and the advantages of multi-roof
Multiple roof is a complex roofing structure consisting of separate, but interconnected and interconnected ramps. In contrast to the usual, it has not 2 gables, but 3 or more. A roof with three tongs is called trehchiptsovoy, with four - respectively chetyrehchlittsovoy. Installation of such a roof has a high degree of complexity, but the cost of labor, finances and time more than pays for the original and organic appearance of this architectural element. The experienced roofing masters consider the advantages of a multi-roof roof:
- High strength and carrying capacity. Large snow load, mechanical damage or strong gusts of wind are not afraid of the slopes of a multi-roof roof, as its roof frame is calculated taking into account intensive loads.
- Ease of maintenance and operation. On the steeply sloped roofs of roofs with several tongs, trash, rainwater and debris do not linger, so they have to be cleaned and repaired less often.
- The possibility of equipment in the under-roof space of the dwelling. Installation of a multi-hoof roof allows more efficient and efficient use of free space.
- Attractive appearance. Compared to conventional dvukhskatnyh designs, polychip look more presentable and complete, enriching the architectural intent of the structure.
Note! Installation of a multi-gable roof is fraught with difficulties. The high complexity of the truss frame makes it difficult to do it yourself. A significant amount of waste leads to an increase in the cost of work. Finally, a large weight of the structure requires strengthening the foundation.
The composition of the truss frame
The rafter frame of a polychip roof is distinguished by an increased complexity, therefore, it is better to entrust its construction to professional craftsmen, or at least to study the design features using detailed video instructions. It consists of separate associated skates, which will connect with each other, forming internal and external corners. The structure of the truss system of a multi-gable roof structure includes:
- Mauerlat Mauerlat is the standard element of the truss frame of the roof of any complexity, which softens the pressure of the rafters on the supporting walls, and evenly distributes their weight between the supports.
- Rafter legs. Rafters or trusses set in pairs along the ridge girder. They bear the brunt of the roofing, as well as give slopes and shape to slopes.
- Racks. Vertical supports supporting ridge girders or rafters are called racks. Their installation is performed on the floor or tightening.
- The struts. The elements that support truss legs are called struts. They are located at an angle to the rafters, giving the frame rigidity.
- Endovy. Endows call a specific element of the rafter frame of a multi-shingled roof, which is formed at the confluence of two adjacent slopes. This term refers to the internal angle formed between them.
- The ribs. The edges are the outer corners formed by the surface of the roof. By the way, the ridge is in fact also the edge of the truss frame.
Important! When installing a trussing system of a multi-gable roof, remember that it consists of alternating laminated and hanging rafters, therefore it is considered to be combined or mixed.
Main nodes
The scheme of a multi-roof can not be typical, since each project of a residential house requires an individual approach and careful calculations, taking into account the shape and design features, the climatic conditions in the region of construction, as well as the nature of the use of the roofing room. Since the installation of such a complex structure with your own hands is hardly possible, a roof structure of this type is associated with large financial investments. The most time-consuming and vulnerable bonds of a multi-roof are considered:
- Endovy. Internal corners formed between adjacent slopes are subject to increased load. At this point, a large amount of snow and debris accumulates, water stagnates, and as a result, the load on the frame increases. To strengthen the design in this area, additional struts and double rafters are used.
- Places mating ridge runs adjacent skates. The most labor-intensive node of the multi-tong construction is the place of docking of the bars, on which the rafter legs of the adjacent forceps rest. This place is subjected to increased load, requires an exact fit, additional support elements rafter frame.
Please note that you can assemble the truss system of a multi-gable roof construction with your own hands, you can only possess professional experience, carpentry skills, and also having a carefully calculated project. For general development, you can get acquainted with the device of this type of roof using video instructions.
