Device roofing mastic

Soft roof can be done without the roll material, but only with the use of mastic as an independent roofing material. Mastic roofing is much cheaper than rolls because of work on it more mechanized device that allows you to reduce labor costs by 5-10 times. Mastic roofing has one significant advantage: there are no seams, but there is one significant disadvantage: if the execution of work necessary to provide approximately the same thickness of the mastic coating on the entire surface, except razzhelobkov, junctions, ridges and edges, as will be discussed further. According to the construction of the roof are classified as mastic reinforced, reinforced and combined. Mastic roofing, as well as roll, composed of several layers, the first of which is applied the method of spraying hot mastic on the prepared base, forming a waterproof film on it. Reinforced mastic roofs are cast waterproofing carpet formed by the method of spraying a layer of bitumen-latex emulsion EGIK and a protective layer of hot mastic thickness of 10 mm, which vtaplivayut gravel or mineral crumb. - Reinforced roofing mastic are cast waterproofing carpet, consisting of three or four layers of asphalt or bitumen-polymer emulsion reinforced with glass, fiberglass or fiberglass and steklovoylokom. Glass - a fabric mesh is very durable glass strands with an aperture 4x4 mm Steklovoylok - a panel of randomly arranged glass fibers. Both materials are characterized by high mechanical strength, so they are usually used as the reinforcing strips. Combined mastic roofing mastic consist of the lower layers of glued-on layers are rolled materials of hot mastic. They allow you to apply for the lower layers of less scarce postmark. On top of reinforced and unreinforced mastic coating is applied a protective coat of paint or mastic with fine gravel. Construction mastic roofs depending on slope of ramps may be of three types. - Flat roofs with a slope of 0-2,5%. It operates from four layers of waterproof mastic carpet with four reinforcing strips and the top protective layer of gravel. Roofs with a slope of 2.5 to 10% is made of three layers of carpet mastic (bitumen or bi-tumno-polymer mastic), two layers of reinforcing strips and the top protective layer of gravel. Roofs with a slope of 10-15% satisfied with two layers of mastic carpet, two layers of reinforcing pads and a protective layer of gravel. Roofs with a slope of 15-25% done with three layers of carpet mastic, two reinforcing layers and top layer of paint. Ridge, valley and razzhelobki, eaves, and also places of contiguity increase the additional layers: - gable - mastic layer of 50-60 cm wide, reinforced steklovoylokom or glass-grid - eaves, valley and razzhelobki two layers of mastic reinforced with strips . These elements are amplified to the device ground carpet. Place the same junction of the roof to the walls and vertical protrusions enhance the two layers of mastic, glass-reinforced felt or fiberglass, after the device ground waterproofing carpet. The top is a protective layer of gravel, vtoplenny to paste. The thickness of the reinforced seats should be 6-8 mm. To increase the surface reflectivity of roofing mastic it after setting the waterproofing layer, but not earlier than 24 hours, cover with aluminum suspension. Work on the device mastic roofs start with the valley, razzhelobkov, low places, where the rainwater. Carpet on the asphalt mastic in the following order: base-plank reinforcing cloth (glass-fiber or other), the top cause a continuous layer of hot mastic and reinforcing layer is completely soaked and stuck to the ground. Just stick and the remaining 2 or 3 of the reinforcing layer. Then applied on top (vtaplivayut) protective layer of gravel. The end of the roof, regardless of bias intensify additional mastic layer width 500-600 mm with reinforcement. Cornice of the roof with a free discharge of water cover the apron of galvanized steel.