Roof Roof every day takes the blows of nature in the form of exposure to various atmospheric phenomena.Roofing mastic, otherwise known as the roof of the filler, as an independent roofing material increasingly used in recent years in the regeneration of roofs.
- Roofing mastic
- Classification mastics
- requirements mastic
- Benefits mastics
- Deposition mastics
Roofing mastic Roofing mastic
hot or cold is a homogeneous, viscous mass, which is applied to the roof manually or by spray.After hardening of the previous layer is applied to the next layer.Roofing mastic can be both single-component and two-component.A definite plus roof mastic is the lack of application of roll materials and, consequently, of joints and seams.The uniform distribution of mastic on the surface of the roof is a necessary condition for the creation of such a roof.Whether it's cold or hot roofing mastic.Mastic roofing price, which does not bite, will
Mastic roofing waterproofing is a liquid, viscous, homogeneous mass.After deposition on the surface and hardening mass is converted into a monolithic coating is rubbery.The roofing mastic composition may contain fillers, solvents and other additives.Roofing mastic can be given virtually any color by adding a dye.It has roofing mastic GOST where, of course, all the detailed technical requirements.Pastes can be applied to the coating of new roofs, and for sealing joints, repairing old roofs, waterproofing, bonding roll materials and corrosion protection.The polymer and bitumen-polymer mastic is easily borne by the roofing material, steel, concrete and asbestos.
use roofing mastic reduces the cost of construction, because the level of mechanization using mastic coating reaches 90%.When working with tar paper mechanization rate is only 30%.This reduces labor costs almost 2-3.
Roofing mastic coatings have several advantages:
- High strength;
- resistance to wind, precipitation, temperature, insolation;
- UV resistance: oxidation and radiation;
- resistance to corrosion;
Mostly roofing mastic used on flat surfaces, the angle of which does not exceed 2.5%.If the slope of greater than 2.5% of the cement or mastic mixed thickeners, add additional reinforcing mesh fiberglass or fiberglass cloth.At an angle of inclination of more than 25% of applied roofing mastic and rolls it is not recommended.Valley, eaves, valley skate and enhanced with an additional layer of mastic in the joints with the roof.
Liquid roof is divided into reinforced, reinforced and composite roof.
unreinforced roofing - continuous, seamless waterproofing coating thickness of about 10 mm, is formed by applying several layers of mastic.The upper layer often add gravel or rock dust.
reinforced roof - a complete, seamless waterproofing coating consisting of three, four or five layers of mastic.Bituminous roofing rubber contains in the middle layers of glass mesh or cloth steklovoylochnoe.The reinforcement increases the strength, but reduces the flexibility.
Combined roof - alternating layers of mastic and roll materials.The top layer of mastic often contain gravel or colored waterproof paint.
Roofing mastic classified according to various criteria.
- terms of composition: one-component and two-component mastics;
- By way of application: hot and cold mastics;
- By composition of matter: bitumen, butyl rubber, latex-bitumen, bitumen-polymer, polymer roofing mastic chloro-sulfonic acid polyethylene;
- By appointment: roofing, insulation, gluing mastic asphalt and waterproofing, anti-corrosion;
- By way of curing: curing mastic and non- curing;
- Style solvent: water-containing organic solvents, liquid organic substances.
one-component sealant - comes in ready to use form.It contains solvent volatilization during which there is hardening its composition.The shelf life of not more than three months.An exception is a polyurethane sealant, which solidification occurs under the action of water vapor.Shelf life polyurethane mastic in hermetically sealed containers is 12 months.
mastic - comes in the form of two low-level components.The shelf life of such pastes will be more than a year.Mixing the two components allows to give coverage elasticity or the hardness, depending on the operating conditions of the roof mastic.
Bituminous roofing, bitumen-polymer and polymer differ from similar web materials primarily to the fact that they are formed in the coating (membrane) on the surface of the roof.
Roofing mastic in the operation must:
- Over norm does not emit harmful substances into the atmosphere;
- have a uniform structure, without the inclusion of the various particles;
- binder infiltrated;
- The biological components remain steadfast;
- Firmly glue roll materials;
- have stable physical and mechanical properties;
- of durability is within the rules.
- Easy to use and apply;
- lends itself well to the roofing tools;
- provides excellent adhesion to vertical and horizontal surfaces;
- forms an elastic coating;
- If hardening does not crack;
- allows to work in conditions of high humidity;
- great flexibility at low temperatures;
- substantial resistance to shrinkage and strength;
- Environmentally friendly;
- ability to change color;
- No seams.
application technology mastics
roof surface requires pre-cleaned of debris and dust.Roofing mastic can be applied in two ways: manually with a spatula and roll, and with the help of a mechanical sprayer.Both methods provide a simple and reliable works.Application roofing mastics particularly advantageous when the roof surface comprises various components and interference reel material.Mastic roofing TekhnoNIKOL, for example, can be applied as a preheater and cold.The thickness of the layer of roof mastics, usually 1 mm.This layer dries in 24 hours.The subsequent layer can be applied only after complete drying of the previous one.The number of layers depends on the angle of inclination typically create double layered coating.About flow of mastic is 1300 grams per square meter in the flat surface.If roofing occur in the winter, you should pre-heat the paste at a temperature of 50 degrees Celsius in a closed metal container.Often, to give the best performance properties of the new coating, it is sprinkled with powder roof.Pre recommend to take care of the gutter, as prolonged exposure to rain can cause damage to the mastic coating.