The durability and reliability, strength and beauty of the roof is due not only to the correct selection of roofing material, but also to the literacy of the way it is laid. In covering the roof, there are no such moments, the quality of installation of which can be neglected even to a small extent. Therefore, the choice of all components for the roof and the definition of the stage of work must be approached with critical importance. One of the easy and affordable ways of laying is to cover the roof with roofing felt, with the moments of which we will try to figure it out in our article.
Scope and types
Ruberoid, as a waterproofing roofing material, has gained wide popularity in the construction of roofs on temporary construction sites.
It has a roll format and serves as a protection of the structure from the penetration of moisture into its internal space and the effects of the external environment. Ruberoid is used both for the restoration of damaged roofing, and for the installation of new ones with a tree-like base.
If we deviate a little from the topic of our article, it can be noted that also roofing material in construction is used for waterproofing floors.
Covering the roof with roofing felt can be done using the following varieties of this material:
- euroruberoid;
- glass roofing material;
- rubemast.
The roofing material is based on dense cardboard or fiberglass, which is impregnated with low-melting bitumen and covered with refractory bitumen and protective dressing.
At the heart of rubemast is roofing cardboard with the application of a large amount of binder bitumen. Unlike ordinary roofing material, it is more resistant to cracking and more plastic.
At its core, glass roofing material is the same as rubemast. But the basis for its manufacture is not cardboard, but fiberglass. In the manufacture of euroruberoid, the base base is polyester.
The undoubted advantage of various types of roofing material is:
- durability;
- strength;
- ease;
- plastic;
- flexibility;
- the possibility of using on roofs of various shapes and with different slopes.
Due to these properties, the predominant use of this material on roofs and other repair surfaces has been noted. So, how to cover roofs with ruberoid?
Rules for laying roofing material
Before covering the roof with roofing felt, we suggest that you familiarize yourself with the rules for laying this roofing material:
- Laying work is carried out in warm, dry and calm weather.
- The coating is carried out on the prepared structure, that is, the surface of the base must be cleared of debris and be even. Holes existing on a solid base must be leveled with a polymer mixture.
- The base area is to be primed.
- In places where drainage devices are located or the transition of horizontal lines to vertical lines, it is necessary to apply waterproofing mastic when laying.
- Particular attention is paid to the joints between the roof parapet and the sheet of roofing material.
Attention. The most optimal way to remove the collected moisture from under the layers of roofing material is to equip the roof of the aerator every 100 square meters.
Methods for attaching roofing material to the base
Laying roofing material on the roof can be carried out in several ways:
- mechanical fastening;
- welding.
Laying by welding
When welding, it is necessary to heat the bottom layer of roofing material, which will need to be applied to the base or to the heated surface of the previously laid layer. In this case, the slow rolling of the roll is carried out with simultaneous pressing it to the base. Laying is done with an overlap.
After the main laying, it is necessary to carry out additional welding of the seams, so how to cover all types of roofs with roofing material follows exactly this, because the tightness of the seams will give the roof moisture resistance, and you will have confidence.
For mechanical fastening of roofing material, connecting parts of this type are used:
- driving with a percussion instrument (hammer);
- self-tapping screws that are used for a wooden base;
- screwed with inserted dowels;
- exposed - the most durable, as they tend to expand inside the hole.
Any type of connecting elements has a fastening fungus made of plastic or tin. In the case of movement of the base, it contributes to the resistance of the roofing material to rupture.
The placement of fasteners depends on the strength and flexibility of the roofing material. A smaller connection distance is applicable to a thinner roofing felt, a larger one to a stronger one.
The value of the mechanical fastening method is to prevent mechanical damage to the roofing material, which begins with bends or small breaks.
Mounting highlights
Roof covering technology with roofing material is one of the simplest and most inexpensive. Subject to all installation requirements, a five-layer roofing felt coating lasts as long as a roof made of galvanized steel.
But note that the costs in the case of the use of roofing material are much less.
This coating is applicable even on flat roofs.
The number of laying layers depends on the slope of the roof:
- on slopes with a slope of 45 degrees, it is enough to apply two layers of roofing material;
- with a slope angle of 20 to 40 degrees - three layers;
- on roofs with a small slope, up to 15 degrees - four canvases;
- on flat roofs - five layers of roofing material.
Before laying the roofing material, the base should be prepared, which is preferably made in two layers:
- rafter system;
- load-bearing flooring from solid dry boards.
Attention. Before coating, the roofing material in rolls is rewound with the reverse side.
For laying the inner layers, roofing material marked M (with fine-grained bedding) is used; for the outer coating, material marked K or P (with coarse or flake dressing).
To fix the roofing material on the base, gluing sheets and layers together, mastics of a cold or hot type are used: bituminous, roofing material, tar, roofing felt.
Note that when installing roofing material, you can use both cold and hot binders, when when installing roofing directly, only hot ones.
When covering concrete surfaces with roofing material, bitumen-polymer agents should be used. They provide better adhesion of the roofing material and the base area.
The main advantage of technologies for arranging roofing with roofing material:
- speed of installation;
- ease of installation;
- roof durability.
At the same time, having little knowledge, installation can be done without the involvement of specialists.
Also, this technology provides for precautionary measures:
- when working with roofing material of the type described, gloves and overalls are required;
- when moving on the roof, care must be taken;
- for reliability and safety, it is preferable to use safety belts.
The arrangement of the roof with roofing felt does not require a lot of knowledge or colossal experience.
To do this, you need to read the description of this process or see its implementation on the video. The main thing is to comply with the requirements regarding weather conditions, the type of mastic and the number of layers.
Nowadays, roofing material has not lost its relevance, so if you do not have the opportunity to delve into the process of its self-laying, experienced builders will arrange the roof in the best possible way.
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