Waterproofing under the metal: which is better?

The roof is one of the most important components of any building. Waterproofing is designed to protect the building from rain and wind. Competently equipped coating allows you to extend the life of the wooden parts of the roof. However, to select it you need to know a number of factors.

As the protection of the roof, many homeowners prefer to use metal roofing. This material provides comfort, safety and reliability of operation. It can give the building a beautiful appearance, provide a microclimate for living inside the house that meets all standards. Before laying the roof is required to prepare the base of the roof of the house and put the insulating layer.

Installing waterproofing under the tile is considered one of the most important steps in the arrangement of the roof. This material is designed to ensure the removal of moisture and accumulated evaporation from under the internal space of the roof. These periodically occurring harmful factors negatively affect the insulation and other elements of the roof of the building.

Waterproofing under the metal - it is nothing like a layer of protective material located under the roof. This coating has a thickness of not more than 3 cm. It is made of water-repellent fibers on a polyethylene base. Such insulation protects the insulating layer from the onset of decay, and the metal tile itself - from corrosion damage.

It is designed to effectively prevent precipitation and dirt from entering the space under the roof. Waterproofing must be properly installed. Otherwise, the installation of tiles on the insulating layer will reduce the life of the roof and damage insulation. Metal shingles themselves, without the presence of accompanying additions, actively pass moisture and dust.

Insulation under the tile is a painstaking occupation.And here it is important not to miss any nuance. The main task will be the selection of quality material. The choice of material on the market today is diverse. Note some types of insulating raw materials.

Ruberoid - has long been used option insulation roofing. It consists of a paper base, which is soaked in bitumen. This coverage is inexpensive, due to which over the years is most in demand. However, this type of roofing insulation is designed primarily for cold roofs or non-residential premises.

The most common material for waterproofing the roof still remains polymer film. This is due to the low price, sufficient strength and ease of installation. But in this case there are drawbacks. Cellophane film is afraid of direct sunlight. In this regard, during installation should take care that the film is not in the sun. There are two main types of film coating under the tile, which are able to provide insulation of the roof and protect the rest of the building from moisture.

This material has good tear resistance. Manufacturers, producing plastic film for waterproofing, make it special holes for vapor barrier. The film is placed under the roof only a certain side.

The reinforced film has increased strength. This film coating can be used for waterproofing roofs, protecting the floor and the foundation from moisture. This material can be considered universal. For waterproofing ideal membrane film.

In the production of this modern material, in addition to polymers, other technologies are also used. Therefore, the membrane is sufficiently effective. This film has already proven that it can not only remove steam, but also protect the roof from moisture. However, its cost is higher.

In any type of waterproofing, there are many varieties. Each subtype is characterized by its own characteristics and durability.

Insulation for the roof must have certain characteristics.Waterproofing material should prevent the ingress of moisture, while promoting the withdrawal of evaporation. The period of operation must be equal to the lifetime of the metal tile itself. It is desirable to refuse the choice of roofing material.

This coating is not capable of passing steam. In addition, the roofing material is less durable than metal. Another nuance is the fact that when interacting with metal tile bitumen is able to destroy it. Therefore, ruberoid should be laid carefully, otherwise the roof may leak.

Top recommendations apply to film or membrane coating. The undoubted advantage is the price. But when choosing is worth attentiveness. Since the film is in its essence polyethylene (only thickened), therefore it does not pass steam well enough. This moment is not taken into account if the roof is not insulated. In the presence of insulation, it can quickly deteriorate.

The ideal choice would be a membrane film. This is a multilayer polymer coating with a specific perforation. An anti-condensate film, which has many advantages, is perfect for waterproofing. It has good strength.When laying there is no danger of damage to the insulation.

Membrane coating perfectly removes steam, at the same time blocking access to moisture. It is distinguished by a long service life. Usually, the replacement of waterproofing is carried out when the roof has already failed. With proper operation, material replacement will be required only in a few decades.

It is characterized by a simple installation process, so the installation does not require special skills and knowledge. The cost of such material depends on the use of high-tech technologies.

In most cases, the use of ruberoid, hydrobarriers made of polyethylene.

For laying as auxiliary tools and accessories you will definitely need:

• wide-bonded galvanized nails;
• construction stapler;
• hammer.
• wide double-sided adhesive tape based on rubber.
• wooden slats for the manufacture of the frame under the metal.

Before you start laying waterproofing material should be aware that all work is performed by a single technology, despite what material is used in this case. And the membrane, and the usual polyethylene stack about the same.

Installation of roofing waterproofing is carried out according to simple technology.

• First prepare the base. The material for the roof is laid on the grid of rails with a thickness of no more than 50 mm.
• Next, you need to cut strips of material (film or membrane), corresponding to the size of the roof slope, leaving a margin of not more than 15% of the length.
• The bands are laid necessarily across the rafters. Since waterproofing should sag a little, it is not necessary to strongly tighten it. This is necessary in order in case of leakage to avoid breaking the film.

• The material is laid with an overlap width of approximately 15 cm. Laying should start from the bottom up. Then the water flowing on the roof, will not penetrate through waterproofing.
• The film is laid only by the side indicated by the manufacturer. Otherwise, penetrating water will ruin the insulation.
• It is forbidden to lay insulation over waterproofing or without it.Also, it is not allowed to use a steam wrap instead of waterproofing.
• When using a construction stapler, it is necessary to use brackets that are not subject to corrosion. The presence of rust will reduce the quality of work to no.

When using roofing material, the algorithm is about the same, however, with a slight nuance. Roll with the material to roll out the day before laying to level the surface and ease the subsequent installation. So you can avoid the deformation of the material used and to work better. Measures to insulate the roof using roofing material should be carried out with due care, as bitumen can damage metal roofing.

Work on laying insulation does not take much trouble. In this case, the priority is the choice of quality material.

Buying waterproofing material should be in a trusted store. At the same time it is necessary to look at its quality, thickness, resistance to tearing. It is worth remembering that the better the material, the longer its service life. In an attempt to save, you can soon return to the issue of waterproofing. You need to choose the best material, put it correctly, following step-by-step simple instructions.

On the installation of waterproofing Fakro Eurotop, see the following video.