The main objective of the rooftop is providing good slope and avoidance of excess load on the base. The choice of covering depends on its type and structure of all building.
Types of sheet roof
It is more convenient to use materials of this type on the roofs having simple design. The giving and owner-occupied dwelling including the wooden attic are optimum scope of application.
Treat types of sheet materials:
- Metal tile. Consists of cold-rolled sheet up to 0.5 mm thick with zinc and polymeric covering and also protective layer of varnish. Material is rather strong and light that in many respects facilitates its mounting. Sheets to furring by means of self-tapping screws fasten. The metal tile up to 50 years serves, maintains mechanical influences and has low cost. From shortcomings of material it is possible to mark out diseconomy and noisiness. The composite metal tile differs in protective layer: at it instead of polymers the pebble gravel is used.
- Roofing professional flooring. The structure is similar to metal tile, however material differently look. The profile of the gofrolist can be equal or wavy. Besides polymers, the leaf becomes covered by alyutsinok or zinc. The professional flooring in the same way, as well as metal tile fastens to furring. Serves up to 50 years, has reasonable price. Material is very strong at bend, however so Shumen, as well as the previous option.
- Consists of the cellulose impregnated with bitumen and polymers. Sheets are executed in wave mode 3.6 cm high. It is mounted both on continuous furring, and on framework from bar with step from 45 to 60 cm (depending on tilt angle). Fastens special nails, about 40 years serve, has low cost. Material of water racks, is hygienic and eco-friendly, strong, easy and silent. It is possible to refer the increased combustibility to shortcomings.
- Material, available at the price. Consists of asbestos and portland cement. Sheets are put on the furring from square bar established on layer of paper roof covering or roofing material. Fasten slate nails. Material serves 30 – 40 years, is very strong at bends and blows, but is brittle at stronger influences.
- Faltsevy roof. Represents equal sheets from steel, copper or aluminum with zinc/polymeric covering. When mounting the sheets are fastened among themselves with fold of lying or standing type. The connected sheets fasten to furring klyammer. From 25 to 30 years serve, has the affordable price. Material negoryuch, attractively looks, is very flexible and light. Treats noisy, can accumulate static electricity.
Types of soft coverings
The soft or roof membrane has come to us from extreme antiquity when the primitive person stretched skin of animal on poles to take cover from rain. Today there is huge amount of materials and technologies of their mounting.
Types of soft roofing materials:
- It is executed on the basis of the fiberglass or polyester impregnated with air-blown bitumen with additive of the modifier and topping. It is glued on continuous furring, layer of heater and waterproofing by means of blowpipe. About 50 years serve, the price is extremely low. The roof from hydroizol practically does not demand leaving, is not flammable.
- Flexible tile. Consists of the fiberglass impregnated with bitumen and strewed with pebble gravel. From inner side there is self-adhesive layer of bitumen with polymer. It is mounted on continuous furring from SMALLPOX or plywood. Perfectly is suitable for roofs of irregular shapes and designs. Serves up to 70 years, has reasonable price. Material is beautiful, silent, flexible, however is fragile at frost and goryuch.
- Flat membrane materials. As a rule, it is PVC, TPO and EPDM. PVC roofs protect from ultraviolet and ignition, EDPM are strong and harmless, and TPO are eco-friendly. The flat membrane on roof with any bias, ways of fastening fastens a little. Membranes up to 50 years serve, has low price. Material of water racks, is strong on puncture.
Characteristics of bulk roof
The mastic or bulk roof represents one of types of membrane. Viscous liquid stiffens in air and turns into elastic film. Well keeps on metal, concrete and bituminous surface. It is mounted mainly on flat roofs by the general layer to 1 cm. Material serves about 15 years, the price of some types can be rather high.
Covering advantages: moisture protection; environmental friendliness, seamless mounting, fire resistance and frost resistance. It is possible to carry to shortcomings of bulk roof that it is rather difficult to make covering of identical thickness on all roof surface.
Piece roof
Products which area does not exceed 1 sq.m. belong to piece roofing materials. They can be made of metal, polymers and other raw materials.
Types of piece roofing materials:
- Ceramic tile. It is used in roof long ago. It is made of clay by roasting under high temperatures. When mounting the roof keeps within with overlap and connects special locks. To furring material fastens nails. Durable material, serves up to 150 years. However the price of roof is quite high.
- Sand-cement tile. It is made by pressing of the making elements. Fastens to furring through openings, ranks. The roof serves about 30 years, the price is lower, than at brick-tile.
- Slate roof. It is used since the 15th century, treats elite types of coverings. It is made of stone rocks. The tile to similarly previous versions keeps within. Serves up to 200 years, is one of the most expensive types of roofs.
When choosing roof it is important to know all types and characteristics of materials. It will allow to make right choice of covering which will serve long.