During any construction work, the impact on repaired or new objects and elements of atmospheric phenomena, their qualitative isolation from unfavorable and harmful influences becomes the key to success. Water, ultraviolet, dust, dirt will not be able to harm the structure neither from the inside, nor outside, if joints, cracks and connecting seams are well treated with sealing compositions, whose species are plentiful for any purpose and needs.

Classification, pros and cons of roof sealants

The most simple in applying sealants that do not require pre-mixing are the so-called single-component compositions. They are ready to use, have excellent properties and are manufactured for different types of work. Multicomponent sealants require mixing components.

Acrylic sealants

The basis of its composition contain acrylic. Refer to plastic compositions, so it is better to apply in places where further mobility is not supposed - windows, walls.

Pros:

• have excellent properties stick to almost all surfaces, but the best adhesion is best shown to the tree, brick, concrete, plaster;
• waterproof acrylic sealants are produced, which can be used in the inner rooms of the building with high humidity (this is a kitchen and a bathroom), as well as from the outside of the house;
• a wide range of colors;
• the composition does not include solvents, which ensures sealant no odor;
• can be covered with paint materials.

Minuses:

• under negative temperatures is not used;
• cannot be used on a wet surface.

Silicone sealants

The group includes both formulations from several additional materials and exclusively silicone. Refer to elastic sealants.

Pros:

• universal for use both inside the building and outside;
• glued to any material, except for plastic;
• resistant to UV rays;
• biologically racks;

Minuses:

• afraid of wet surfaces;
• cannot be covered with paints.

Bituminous sealants for roofing

The basic element of the composition is a bitumen, which, due to its incompetence, dissolving water shows the best qualities and is used on surfaces, regularly moisturizing, while maintaining them from harmful environmental impacts for a long time (up to 20 years). When overlapping bitumen sealant, a layer should be made, a maximum thickness of 1 mm is to provide the best hitch between the material and the composition. Applying the sealant on the porous surface structure, it is better to subjected to primer. After applying sealants, it takes about half an hour to dry out, but the time of the strength set will be 2-4 hours. Refers to elastic sealants.

Pros:

• high adhesion in relation to different building materials;
• confrontation to atmospheric influences (UV rays, water, chemical compositions, low temperatures);
• not afraid of wet surfaces;

Minuses:

• non-smoke color palette;
• exposed to high temperatures.

Here it is worth considering the belonging sealants with bitumen in composition for the roof (or butyl rubber). They are a roll, up to 280 mm wide, impregnated with sealing materials, with one or two sides of the adhesive. The principle of use is simple and convenient - the protective paper from the adhesive surface is removed, and the tape is mounted on the seam, a crack or joint. Reinforce such a sealant canvas or foil.

Pros:

• excellent adhesive properties in relation to any materials;
• protection against solar, water and other impact;
• long service life without loss of quality (up to 10 years);
• it is suitable for painting;
• a variant with a two-sided adhesive layer is manufactured.

Polyurethane sealants for roofing

They are used only for repair work outside the house.

Pros:

• irreplaceable for vertical seams, due to their consistency;
• increased adhesion;
• throughout the service life, it is perfectly opposed to water and solar effects, some "caustic" chemical compositions;
• the volume after applying and rapid drying remains unchanged;
• may be stained.

Minuses:

• the composition includes substances harmful to humans, but when conducting outdoor work, it does not play roles.

Alsame the solidifying compositions and unscakening sealants. The hardening is sealants that when heated becomes softer and frozen during reverse action. These are all sorts of mastic, pasta, putty. Unautheated sealants are in a viscous state at any temperature and are used for not too deformed junctions.

Manufacturers and Products

Sealants - universal materials, they do not need high qualifications during application, and their choice is quite wide in our market. Prices for sealants for the roof, walls, household and other needs are varied from the volume of packaging, manufacturer and scope of application. The most "running" packaging - 300 ml sold at a price in the area of \u200b\u200b100 rubles.

The following companies are most popular: LLC SYUDAL and GERMETSOZOZO LLC, HUNTSMAN-NMG, Krass, Bautech, Tempestsystem, Selena Plant.

Products that have gained confidence in domestic builders: B101 Acrylic Roof Sealer, sealant "germing" brand Moment, sealant bituminous bison "Expert", a line of bitumen sealants for the roof "Extra", sealant for roofing titanium, Emfi sealants, Weathermaster Roof, Soudal, " Hantsman-NMG, Tenax, Sika.

The compositions of the Extra brand are ready for use and have all the necessary qualities: do not require heating, water resistant, temperature rims, are perfectly glued on any surface, racks to the shrinkage of buildings. This sealant for a soft roof can be applied directly to the coating.

The compositions of the Titanium brand are characterized by the applicability in negative temperatures and on the vertical surfaces of any compositions. Thanks to the excellent adhesion, professionalism and preliminary surface preparation do not require. The sealant is suitable for a metal roof, and also perfectly proven itself in use on materials such as tiled, wood, concrete, stone, brick and others.

Titan Industry PU-25 sealant is used mainly for folding roofs and flat roofs.

The sealer of Roof Sealer B 101 is elastic and is used for lightweight structures, as well as on the roofs of concrete slabs and overlaps. Suitable for any roof and dries over half an hour.

It is in demand for the ribbon sealant of the domestic producer Gerlene. These tapes are used for sealing joints and cracks on the roofs of any type, have excellent qualitative characteristics and are convenient in operation. Before applying the sealant, the surface is cleared, the old coating, garbage and dust are removed. The place of application is ground, and after 20-30 minutes, the ribbon sealant is mounted, rolled roller.

Sasilast 51, 52, 53. This composition is applied at possible temperatures -15 to +40 degrees Celsius. Suitable for sealing the folded metal roofs, economical.

How to choose a sealant and apply it correctly

The selection of sealants is carried out on the basis of your needs and properties of direct sealants. Depending on this you need:

• when applying sealant outside, acquire it resistant to temperature differences and atmospheric influences;
• if it is supposed to apply sealant to the vertical surface, then choose the polyurethane composition;
• carrying out the repair of metal surfaces - take the sealant with anti-corrosion properties;
• look into the future: with the further mobility of the treated surfaces, the sealant should be elastic;
• before starting work, take a look at the degrees: some formulations are not used at negative temperatures;
• there are universal compositions that can be successfully applied on the roof and in the bedroom - silicone sealants;
• decide whether the sealant will be painted;
• pay attention to the weather: if it is foreseen or it rains, the roof surface is wet, then it is better to transfer repair to more dry weather;

Choose high-quality materials from proven manufacturers - take advantage of the advice of acquaintances that have experienced the use of sealants. A good sealant will not sprawle even at the lowest temperatures and compensates for any movements of the joints.

Observe the thickness of the seams recommended by the manufacturer. Store the sealant correctly, do not allow it to dry.