Construction steps and methods of asphalt tiles:
(I) Roof slope
Generally speaking, asphalt shingles are suitable for the slope of the roof of 20~90 degrees.
(2) mortar
Asphalt tile is a kind of flexible tile, the flatness of the base will directly affect the quality and appearance effect of asphalt tile laying, so the surface flatness of cement mortar leveling layer should be strictly controlled.
(three) coated with cold base oil (customized by the customer)
Before applying cold base oil, check the surface of the leveling layer to ensure that it is smooth and clean. Besmear brush wants thin and even, must not have blank, pitting, bubble. If the surface of the base is too rough, brush the slow volatile cold base oil first, and then brush the fast volatile cold base oil after it is preliminarily dry. Brushing time 1-2 days before laying wave fiber tile.
(4) self-sealing adhesive
There is a self-sealing adhesive on the asphalt shingles. The self-sealing adhesive is sealed with a transparent plastic pu film belt, in the construction, tear off the plastic film belt, self-sealing adhesive by sunlight, slowly will automatically stick the upper and lower two tiles.
(5) Nails
1. The correct nail fixing method is very key to the good performance of the roof. The following requirements must therefore be complied with:
(1) Galvanized nails must be used to prevent rust;
(2) 6 nails for each tile, and determine the location of nails as required.
(3) Nails should be driven straight in, and the top cap is flush with the glass tile.
2. The nail position is 16mm above the decorative seam, 25mm away from both sides, and 25mm away from the center of each decorative seam.
(6) Spring string
The size difference of each asphalt shingle is not very significant, but on a large roof, the accumulation of these small differences may cause the asphalt shingle bottom edge or decorative seam skew, therefore, the elastic line helps ensure that when laying asphalt shingles, horizontal and vertical in a straight line.
The spring line between the eaves and the ridge must be vertical. The distance between each vertical line is 167mm. Then from the eaves began to show the horizontal line in turn upward spring line; The horizontal line should be bounced 188mm from the bottom of the initial layer of asphalt shingles, with 145mm intervals between each horizontal line thereafter.
(7) installation of asphalt tiles on the inclined ridge and roof ridge
Before laying the ridge tile, the first two roofs of the roof of the asphalt tile upward laid to the ridge and ridge, in order to facilitate closing, behind the laying of several layers of asphalt tile to slightly adjust, so that the ridge asphalt tile can fully cover the roof of the roof asphalt tile, and the ridge on both sides of the roof of the lap width is equal.
Asphalt tile construction tools: safety belt, steel hammer with driver, tool belt, flat rubber shoes, putty knife, steel ruler, gasoline blowtorch (hot melt), scissors, tape, paper knife, cartridge box, square, rubber pad.
Asphalt tile construction should pay attention to the safety measures:
(1) when high construction, there should be a safe and reliable foothold, the frame plate should be fully paved, the protective railings should not be less than 1.2 meters, and the protective railings should be two.
(2) The safety belt must be fastened first.
(3) Slope roof construction personnel must wear soft-soled shoes, not shoes and hard-soled shoes.