Most roofs are flat, but there are still sloping roofs. Because the inclined roof design has the incomparable advantages of flat roof, it can solve the problems of hot and cold water and water leakage in summer. So how to build inclined roof cement tile?
Construction step 1. Setting out
Firstly, the concrete roof shall be leveled, and then the following steps shall be followed: first, determine the roof contour. Pop up the center line on the ridge to make the roof symmetrical or make the two parts parallel as far as possible. Then, in the eaves, the first parallel line is discharged parallel to the eaves to determine the position of the first floor of the eaves, so as to ensure that the eaves is 50mm ~ 70mm. Then, pop up two transverse starting and ending segments of roof tiles perpendicular to the first horizontal line and determined by the tile shape from the eaves.
Finally, determine the number of roof tiles in the horizontal and vertical directions. The length of the transverse effective section divided by the width of the roof tile cover is the number of transverse tiled roof tiles. The lap rib can be fully utilized to allow an adjustment position of about 3mm, and the roof tile can be adjusted to an integer. If the quantity of the whole ceramic tile is not adjusted, the roof tile can be adjusted to the middle arch position to facilitate cutting and processing. The number of longitudinally paved roof tiles shall be determined by first determining the effective coverage length of roof tiles according to the roof slope and tile structure, and then dividing the effective coverage length by the longitudinal length of roof tiles. The value is the vertical paving of roof tiles. Finally, the number of tiles is adjusted to integer slices, while ensuring that the effective cotton roll length is not less than.
Construction step 2: install tile hanging strip
Before installing the battens, the position of the drainage ditch shall be determined. The width of the drainage ditch shall be determined according to the area of the catchment area and the designed slope and rainfall. After determining the width of the drainage ditch, draw the center line of the drainage ditch, which is based on the center line, and nail two water hoses according to the width requirements. When Binding battens, the best right angle shall be selected as the upper rib and nailed firmly according to the position of the line. The horizontal strips of strips shall be staggered and ensure that the upper edge is straight.
Construction step 3: roof tile installation
Since the eaves are 50mm ~ 75mm, the first floor of the eaves will be lowered. When installing the first roof tile of the eaves, fill it with base plate or cement mortar and keep it on a flat surface. The roof tile is above the second floor. At both ends of the roof, the horizontal line is pulled in the same way, and the first roof tile of the eaves begins to be laid. After the first layer of roof tiles is fixed, the roof tiles are laid from bottom to top from the lower right corner of the eaves (or from left to right). Roof tiles must be reinforced with steel nails. The vertical connection of roof tiles on each floor can be straight or staggered. In order to improve the thermal insulation performance of tile roof, when laying the first row of roof tiles, the length of eaves is 50mm ~ 75mm. When the battens are fixed, the eaves shall be kept 30mm and sealed with cement mortar to prevent bird construction. The nest and length of time are corroded by slats. A 60mm wide slit is reserved at the foot of the mountain for the installation of mouth type ceramic tiles.
Construction step 4. Installation of ridge tile
The installation of the ridge tile should start from the ridge of the head, and the ridge is overlapped to the end ridge tile. When circular ridge tiles are used, the last ridge tile shall be cut to a length suitable for installation. When conical ridge is used, large head ridge tile and small head ridge tile shall be selected at both ends of hawthorn. Installation of inclined ridge: the installation of inclined ridge shall start from the inclined ridge, the inclined ridge shall be installed from bottom to top, and the bottom shall be filled and overlapped to the position of the ridge. Installation of three-way ridge tiles: three-way ridge tiles shall be used at the intersection of three-way roof, that is, the intersection of double-sided ridge and ridge. There are also four-way roofs, multi-way roofs and excessive dagger connections. Four-way ridge tiles can be installed, and high-grade cement mortar or adhesive can be used for bonding.
Construction step 5. Node treatment and fixing method
When laying roof tiles, the joints of joints must be carefully handled to ensure the overall waterproof effect of the roof. Waterproof building materials used for joint parts are usually selected from waterproof mortar, hemp ash and other materials.
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