Before you deal with options and materials for filing crumbs, you need to remember why you need an exterior design of overhangs. First, to protect the under-roof space from the negative effects of atmospheric factors. Secondly, to give the upper part of the structure artistic completeness. Therefore, when filing cornices it is necessary not only to take care of the quality of the work, but also to remember its aesthetic component.
In order to choose which options for finishing the lower part of the roof, so that they meet the specified conditions and do not require large financial investments, we'll figure it out.
One of the most frequently asked questions is when to start filing cornices? The author believes that it is necessary to engage in the overhanging of the overhang after all the preparations for the installation of the roof have been completed. But if the cornices were originally faced wrong or replacement( repair) of the material used earlier is required, then what difference does it take to start doing this.
Once the topic of the article - the options for filing, it is first of all necessary to determine the most suitable materials( products) for the design of overhangs.
Materials for filing cornices
Wood
When it comes to it, it means a board edging or lining. On what exactly to stop the choice, depends on the size of the overhang and the steepness of the skates.
The option with the board is less attractive. First, the load on the rafter system is increased. Secondly, the blanks fit tightly, therefore, it is much more difficult to organize a qualitative natural air circulation than when using a lining. And another question - how to install ventilation grilles, if the thickness of the edged products is significant( for example, "ten" or 15)?
Wood, along with advantages, has many drawbacks. It absorbs moisture, therefore, deforms. Including, and twists. Hence, in such a filing of the cornices, for a certain period of time, gaps will appear. As a result - under the roof will not be so warm and dry, as soon after the completion of the construction of the house. And if we add to this the probability of destruction of wood billets by wood-bug insects, the need for regular updating of the appearance, then the expediency of such a filing raises some doubts.
As a continuation of the previous paragraph. When choosing wooden samples for filing a roof, you need to be prepared for the fact that you will periodically have to deal not only with their surface treatment with specialty compounds and varnishes, but also with repairs. That is, a regular replacement of a decayed( destroyed) board of edged or lining.
Other products( plate, sheet) made of wood - chipboard, OSV, FC, PSF, and the like - are also on sale. All of them are classified by a variety of characteristics, and some types are positioned by the producers as "especially moisture resistant".No matter how high-quality such products are, one should not forget about some things. First, it will be mounted outside the building, "on the street".The second - at the base of all samples in one form or another( sawdust, fiber, chips) there is wood.
Therefore, everything that is mentioned above fully applies to these materials. The third is economy, at a low cost of similar products, seeming. Local conditions must be taken into account. How long will such a filing of the cornice last, with what periodicity it will be necessary to engage in its maintenance( repair), how much time and money will be needed - all these questions require careful analysis.
siding panels As a rule, these are PVC and aluminum siding( all kinds of siding are described here).Wood does not count, as it has already been said about. The advantages of such samples of information are many - the speed of installation, maintainability and so on. Much more interesting, what are their drawbacks, if they are used as filing cornices.
The appearance of eaves is a matter of taste. What is the practical aspect of this design option?
- Specificity of mounting the siding provides for complete abutment of panels. Therefore, most likely, we will have to think about the arrangement of not only natural ventilation under the roof, but also forced. Especially if the house has a mansard room.
- The high thermal conductivity of the siding dictates the need for better thermal insulation of overhangs. This complicates the installation of cornices and requires additional costs.
Profiled
Such sheets are more convenient in installation, as their dimensions significantly exceed the dimensions of siding panels. At the heart of all profiled products are steel rolled products. The choice of options for the shape and parameters of the wave is significant, but on the outer coating a small - or cheap "zinc coating", or sheets with a polymer protective layer.
The latter look much more beautiful, especially as the variety of colors allows you to choose the material for filing cornices in the tone of the walls or( and) the roof. One of the advantages of this variant of the overhangs design is the specificity of the sheet installation - there are gaps between them, which in most cases are sufficient for efficient ventilation under the roof. Perhaps, the difficulty will arise only when working with samples that have a polymer coating. Filing eaves with them requires special care, since the protective layer is easily damaged.
Spotlights
In the first approximation - the same siding. But there is a difference, since soffits are products specially designed for filing cornices. Their feature is that, firstly, the panels are more thick( hence, strength).Secondly, even during the manufacturing process, perforations are applied to the spotlights, so there is no need to do anything else to organize the ventilation - these holes are enough for the natural current of the air masses.
Thirdly, additives are added to the initial polymer mass, which increase the resistance of panels before UV rays. This means that the soffits soiled on the cornices will not burn out, at least as quickly as PVC siding.
Another plus - the kit includes everything you need for installation( slats, fasteners).Using soffits will greatly simplify the filing of the cornices and save time, which would have to spend on the search and purchase of various additional elements.
Features of attaching each type of products - their own. It is logical to give only examples of the most common schemes of filing roof cornices.
The author believes that the information is more than exhaustive. The decision is yours, dear reader. The main thing is to choose the best option, according to local conditions. And it's not so difficult to mount a material for filing cornices. Good luck!
