9) roll forming machine roof lap: lap of the roof slab length direction are connected with bolts, the connection the pressure sealing strip and hit the sealant to prevent leakage the seams tight occlusion, straight. Roofing sheet connector is placed just above the purlins the lap joint corresponding to the length direction of the two boards should be staggered a purlin distance and evenly arranged. Plate with the pan of water lap width of not less than 200 mm; the pressure plate roof flashings board overlap with the highlight of the wall of the roof height of not less than 300mm. Installation should be straight.
10) the installation of the lighting board: lighting board is connected between the roof panel, the use of bolts, sealing tape. Installation must increase the plug under and around, the way of the cotton insulation exposed, the other on both sides of the lighting board each plus a fixed plate, for fixing the lighting board with adjacent roof panels, fixed with self-tapping screws, lighting board with the upper and lower two plates pressed order in accordance with the direction of the roof slope, pressure, below it pressing a roof panel. Lighting board need to set up stainless steel watershed.
11) the metal ridge tile (roof cover along), fascia pressure plate installation: roof cover along the lower fortress real cotton insulation, two side roof panel blanking plug with rubber foam on the inside, cotton insulation plug with sealing tape stuck, the roof cover along with the roof panels connected with the branch pieces. Before installing the roof trim, the prefabricated rubber waterproof block should be installed with ordinary plate joints filled with the entire roof panel lighting board blank 1 2mrn gap must seal with sealant. The lower part of the lighting board sided tape can not drain pressure extrusion. Wrinkled voids. Jiwa, fascia lap tight straight.
12) Roll former machine roof panel lock side: roof asked the side of the upright patchwork catcher mechanical lock side, before the operation, the first bite bite the side length of about half a meter manually, and then the electric lock sewing machine pad horizontal lock finished, the roller to step up the lock at the start lock sewing machine, let it the uniform lock forward side.
(9) Wai Yan ditch installation:
1) First, install preformed corner seals, in order to match the gable trim and gutter profile.
2) before installing the gutter, with preformed rubber seals completely fill the space under the roof panel folds.
3) before installing the gutter, the first the preformed wall sealed steel bars installed in the wall folds. The walls of the preformed seal made of a steel strip may be galvanized steel sheet of 0.6mm.
4) installation of gutters, pressure plate should be inserted into the the eaves trench, its length should not be less than 150mm.
5) roll forming machine roof panel installation: before the installation of the liner in advance on the plate pop rivets position control line and to adjacent liner overlap each line of position. Horizontal overlap of the pressure plate is not less than a wave of the longitudinal lap of not less than 120mm. The installation groups of 4-6 with the installation, use self-tapping screws fixed roof liner.
(6) sliding bracket mounting: Sliding bracket design intervals, using self-tapping screws and purlins connection, the position must be accurate, firmly fixed.
(7) the laying of the cotton insulation: cotton insulation along the direction of the gradient in accordance with the layout diagram laying each other staples peg; the cotton insulation installation, packing full, without leaving any gaps.
(8) metal roofing panel lifting, installation:
1) under the roof panel board type, making the card mode, a block-by-block lifting vertical transportation equipment.
2) when laying steel sheeting roof, two adjacent panels should shun the annual maximum frequency of wind direction lap, to avoid windy days, when cold air poured into the interior.
3) roof ends through the panel and the purlin pre-drilling in place and arranged to match.
4) The position and arrangement of all the plates in the length of the building required to maintain the modulus of 300mm.
5) The pressure plate should be used with waterproof gasket galvanized self-drilling screws fixing point should be located on the crest. All exposed self-drilling screws, should be applied sealing material protection.
6) sheet metal roof and facade walls and prominent roof structure of the junction Pan-water treatment should be done. Long pass sealing strip should be placed between the two plates; bolt tightening ride at the interface of the two plates, the application of sealing material seal.
7) the laying of the first board: first locate the first board layout diagram and the holes on the purlins fixed roof panel position, the first board installed by the wall of the mountain close to the gutter from the Department of reinforced pin to adjust the larvae L-bit, hit a row of holes close to the board self-tapping screws, rubber foam plugs installed in the edge of the gutter, sealing tape around the upper and lower plug with self-tapping screws and gutters and purlins fixed.
8) roof purlins connection: a plate adjacent side pressure in the first edge of the plate at each purlin sheet lap install the sliding bracket, purlin with self-tapping screws fixed bracket hooked the edge of the board, after a pressure plate on it. Plate and the position of the sliding bracket should be adjusted accordingly, depending on the construction season, spring and autumn can be placed in the middle of the slide bracket, summer and winter can be installed on either side of the edge of the slide bracket.
(3) roof liner lifting: lifting method is determined, lifting methods are often used in water lifting, lifting section: piece by piece, to expand the section lifting. Lifting machinery, lifting sequence, mechanical position and driving route, according to the column, the same aspect, sub-lifting arrangements under the lifting method, each 6 to 7 liner. (4) the purlins lifting, installation: the installation of the house purlin, the first figure to be desired purlins transported to the bottom of the mounting position, purlins using lifting equipment column asked the same slope, graded lifting. Every time a bundle hanging to the roof beam, each bundle 8 to 9 purlins, horizontal pan purlins to the installation location, the purlin plate and other purlins insertable bolted; the roof purlins support installation, construction workers with a small hammer stuck his head hit the bend, fixed
Second, the material and quality of the point 1) the key requirements of the material (1) sheet metal roofing and quality of supporting materials, to ensure that the key to the quality of the roofing sheet metal, sheet metal material and coating thickness must meet the design requirements. The integrity of the coating or not directly affect the life of the pressure plate roof. Construction prior to the appearance of the material with the naked eye and 10 times the magnifying glass to check carefully review the materials factory quality certificate and test report. (2) Pan-water board, roof cover along other parts of the bending width and bending angle is an important indicator to ensure the quality of the appearance of the building, its shape will directly affect the look and feel of the building. 2) technical key requirement Well in advance of the the roofing sheet layout layout to avoid material waste. The use of the detail node practices and different parts of the fasteners, construction workers on the operation and check the technical disclosure. 3) the quality of the key requirements The metal color plates fastening roofing installation, insulation, sealing the three key elements. Colorful Roofing key parts: construction sheet lap, fixed lighting board, install gutters, roof cover along the installation node to be careful arrangement, the number of fasteners to connect, ask away, to focus on the quality of the connection examination. 4) key to occupational health and safety requirements Roofing installation complete, effective security measures to be taken to prevent the occurrence of accidents by falling against objects 5) Setting the key requirements Processing of the remaining bits and pieces of sheet metal and cotton insulation in the construction process to comply with the relevant national hazardous waste disposal regulations.
(C) machines and tools Manual cutting machine, electric lock sewing machine, electric wrench, positioning wrench, welding machines, portable electric drills, riveters, dedicated stapler, paper cutter, marble saws, pliers, rubber hammer, wire line, tight line, wire rope and lifting equipment.
(D) operating conditions
(1) Color steel roofing metal installation and construction, technical staff should be carefully familiar with the manufacturers drawings, and careful tests, technical measures, quality requirements and product protection for the construction of the operator.
(2) the approach of the roll forming steel and a variety of accessories to carefully check the detailed dimensions, specifications, quantity and installation drawings are the same.
(3) roof steel structure installation and construction is completed, the acceptance
(4) for the installation of roof metal color steel scaffolding erection completed.