(Ⅱ) roofing panels and cladding panels installation
Roof panels longitudinally without joints, the construction site side of the wall end should be left roof panel production site and finished product stacking site. Use the crane to transport the roof panels to the roof, the installation order should be considered in favor of the region's dominant wind direction and from the plant end to start laying span by span. The construction order of roofing panels is determined according to the site conditions.
First install the first panel against the side of the mountain wall, when the first roof panel is fixed in place, pull a continuous quasi-line at the eaves of the roof, this line and the first roof panel will become a guiding reference to facilitate the rapid installation and correction of subsequent roof panels, and then for each roof area during installation to be tested periodically, by measuring the width of the roof panel that has been fixed. Measure once at the ridge line (or top of the panel) and once at the gable (or bottom of the panel) to ensure that there is no movement and scalloping and that the roof panels are parallel and perpendicular.
The steel structure project roof panel bending pieces mainly have ridge inside and outside closing, sealing board and ridge mountain wall gable closing and so on (pay attention to the construction sequence), these color plate bending pieces and color plate connection with aluminum rivets, color steel bending pieces accessories should be neat, beautiful, meet the waterproof effect, after all fixed, with sealant play a section and then lightly rub to make even, flood plate and other waterproof points should be coated with sealant.
1, Roof panel installation.
Construction order by the structure has the conditions of the sequence of decisions, the normal construction order from one end of the roof to the other end.
According to the structure of the metal roofing system and the installation procedure of the system, the construction procedure of this project is shown in the following figure.
Build a walkway on the purlins to ensure construction safety and construction progress.
For installation, lift the panels onto the roof by crane (manual lifting method can also be used). The lifting belt must use flexible lifting such as nylon belt or cloth belt, and steel belt must not be used. A protective wooden strip should be inserted between the package and the sling or package, thus preventing the deformation of the board along. The handling of the plates should be carried lightly to avoid bumping and dragging on the ground to avoid damaging the plates. Before installation, the surface of the board should be cleaned first, then check whether there is residue on the board surface, if so, clean the residue with detergent and water, and wipe the surface dry with a dry cloth.
The laying direction of the board must be laid against the dominant direction, and the line must be popped up at any time during the installation of the roof panel to prevent accumulated errors. In the roof panel installation process, the ridge cover and waterproof plug (or roof panel on the bend) must be installed at the same time to keep up. The board is more sensitive to the concentrated load, so when the roofing color board is constructed, the construction personnel must not gather together to avoid the concentrated load leading to the local damage of the board. When installing a roofing board, adopt side lifting side installation, at least do the lifting roofing board on the day of installation, where the day is not installed board, must take corresponding measures to prevent falling.
Quality requirements: the size of the pressure plate is correct, the surface is clean, no perceptible bump and crease, the joints are straight, longitudinal and horizontal laps are straight, the joints are uniform and neat, tight without warping, no wrongly drilled holes.
2, the ridge plug (or roof panels on the bend) and the installation of the ridge board.
Placement and positioning: the first ridge board of the starting datum line, along the installation direction to set out the ridge plug (or roof panel on the bend) and ridge plug two side lines of the installation control line.
Install the ridge plug plate (or roof panel on the bend), plug plate and the contact part of the pressure plate coated with waterproof glue, and then installed, with waterproof glue to seal the plug to prevent leakage, and install subsequent plugs in turn. Install the first ridge board, according to the starting datum line and control line installation of the first ridge board adjustment positioning. Measure on the ridge board to scribe the positioning plate of the bending stopper, cut the mouth with scissors, fix the ridge board with the specified pull rivets on the pressure plate, seal the fixings with waterproof glue, bend the bending stopper according to the bending positioning line scribed.
3, flooding, corner wrapping, expansion joint cover installation.
Place the line to set the starting datum line of the first block, along the installation direction to determine the control line of the two side lines of the board. Install the first piece, according to the datum line and control line installation of the second plate adjustment positioning, fixed on the fixed plate, with waterproof adhesive will be sealed to prevent leakage of fixed parts. In the first board measured and scribed out the second board and the first lap positioning line, the lap part of the board was coated with waterproof glue, the installation of the second board to adjust positioning, fixed and sealed with waterproof glue, the installation of the second board and subsequent boards in turn.