Talking Metal tile roof construction process

A metal roofing system in the form and structure technical indicators
1.1 This paper describes the use of sheet metal roofing 430/25 standing seam roof system.
1.2 Structure and main material (top-down) as follows:
The surface layer - 0.7mm thick aluminum magnesium manganese plate, stainless steel connecting fasteners
Noise level - 5mm mesh ventilation noise
Screed - 0.8mm galvanized steel
750 steel - 0.6mm galvanized steel
Insulation - 60mm thick polyurethane foam insulation (density 40kg/m3)
Purlins layer - 40 × 40 × 3 galvanized square tube
Waterproof layer - a 4mm thick SBS waterproof polyester tire
Purlin care - L100 × 50 × 5 galvanized Corner
The main structure - concrete roof
1.3 Process Requirements
1.3.1 The standard panel molding width 430mm, wave height 25mm.
1.3.2 magnesium manganese plate surface coating process for the pre-roll coating, fluorocarbon plate color is dark gray. stone coated metal roofing tile
1.3.3 The various connection fasteners rust products.
1.3.4 panel fasteners spaced not more than 500mm, roof, eaves, convex tapered at specific locations such as fasteners spaced not more than 300mm.
1.3.5 purlins single-row layout, purlins is 40x40x3 galvanized square tube purlins for the horizontal arrangement, spaced not more than 1000mm. In roofing yin, yang ridge place under field conditions plus longitudinal purlins. Guaranteed late roofing perception results.
1.3.6 Corner Installation: Corner of galvanized angle code, specifications for L100x50x5, width 50mm / a, the lateral spacing of 1000mm. Vertical spacing of 800mm; installation of: M10x100 bolts.
1.3.7 purlins to be soldered on the Corner, weld slag and plump without holes, weld the overall height of not less than 3.5mm, weld brushing rust twice, individual special position can be less than 3.5mm, but not low at 3.0mm. Clean and polished smooth welds, rust red iron brush twice.
1.3.8 Pressed tiles fixed with M5x25 purlins, horizontal lap a crest, longitudinal lap not less than 50mm
1.3.9 leveling plate fixed with pop rivets Pressed tiles, looking flat vertical and horizontal overlap of not less than 50mm.
1.3.10 cornice location settings fascia, fascia boards to bite into the roof and the roof tight not loose.
1.3.11 aluminum panels along the roof slope direction as far as the whole board is installed, the phenomenon does not appear lap. For lap, the two-lap board flanging bite.
2 Metal tile roof installation
2.1 Pre-construction preparation
The duration of the project schedule requirements, technical information, tools, appliances, materials, personnel, machinery, etc. fully prepared.
2.2 overall construction process
Metal tile roof system structure is relatively clear, its construction process are: primary inspection → positioning, actinomycetes → bracing angle code laying waterproofing membrane installed → → purlin installation, inspection elevation Review → → → pressure plate installed insulation construction → find panel mount → ventilation noise laying stainless steel fasteners → → → cornice roof installation shut → Check closing edge
2.3 Specific installation and construction methods:
2.3.1 Primary examination: civil handover found more than the standard allowable error of the site, must be adjusted before installing roofing systems.
2.3.2 Positioning, actinomycetes: Construction Control line with the water level release and determine the support angle code installation location. A hole in the concrete roof structure, pore size is 10mm, depth 80mm, then screw on fixed angle code.
2.3.3 Corner Installation: Corner of galvanized angle code, specifications for L100x50x5, width 50mm / a, the lateral spacing of 1000mm. Vertical spacing of 800mm; fixed on the corner yard bolt screw and tighten the nut.
2.3.4 waterproof construction: Corner construction completed, the first code in the corner office to do 200mm x200mm additional layer of waterproof, waterproof specification with other parts required to complete 4mm thick waterproof layer construction. stone coated metal roofing tile
2.3.5 Purlin Installation: roof purlins supporting purlins care welded on, measure and control before installation elevation, after passing inspection, welding purlins. After installation to ensure Purlin roof section at the top of the parallel line. After completion of welding the weld inspection one by one, to meet the requirements for weld grinding and anti-corrosion paint brush twice.
2.3.6 insulation construction: purlin is completed, the whole roof layer after injection 60mm polyurethane foam insulation layer, to be strength up after doing prime slurry overlay again, after the procedure to prevent the construction period and the aging of polyurethane foam insolation fire ignited.
2.3.7 galvanized steel sheeting installation: galvanized steel plate having a thickness of 0.6mm for the vertical arrangement of the longitudinal lap of not less than 50mm, lateral crest lap of a tile surface, with the specifications for the M5x25 screw-pressure drilling angle plate fixation on the purlins.
2.3.8 galvanized steel screed installation: galvanized plate thickness is looking for 0.8mm, vertical and horizontal overlap are specifications for the 5x16 50mm with pull rivets leveling plate fixed on the pressure steel plate.
2.3.9 Noise ventilation mesh network installation on the tile in the leveling plate.
2.3.10 installation of stainless steel fasteners
Stainless steel fasteners are roofing system mounts, roof wind load is transferred to the secondary Tan accessories by the force, which directly affects the quality of the installation of roof wind resistance, stainless steel fastener installation will also affect the roof plate Longitudinal free expansion, therefore, stainless steel fasteners installed as a key step in this project.
Stainless steel fasteners installed mainly in the following construction steps:
(1) Actinobacillus
Measured with a theodolite to the axis of the lead wire-line noise as stainless steel fasteners installed vertical control line. Aluminum roof is longitudinally mounted, fasteners also longitudinal position of the discharge line should be based on the design from the middle position parallel to both sides of actinomycetes, plate spacing is 430mm.
Stainless steel fasteners determines the number of roof wind resistance, along the plate length direction Rows by building height, roof slope, different positions and the wind direction, the most unfavorable load and other factors, especially the corners and edges is focus.
(2) installation of stainless steel fasteners
After a good bit with rivets leveling the fastener plate fixed on top of grass.
(3) review of stainless steel fasteners
Found insecure installation of stainless steel fasteners to be taken out, move the location after the fight. Longitudinal spacing between fasteners according to design requirements spaced not more than 500mm
2.3.11 cornice and plate attachment
Cornice and roof attachment material is the same material of the plate, galvanized steel plate material; their processing size measurement standards pursuant to the scene size.
Installation order of plates, accessories, panels.
Shall be provided between the connecting plate lap and lap seam joints shall be staggered and accessories.
Nail plate by pulling on the base, accessories and fastening plate is fixed.
Between attachment mounting accessories must ensure smooth ride mouth, along the straight and the overall look and feel.
2.3.12 metal roof installation
Installation sequence, first install roofing middle to both sides, and finally install the cornice edge of the plate.
All profiled size adjustment plate should be finalized only after processing installation.
Panel through the stainless steel fasteners with a pull rivets.
Standing seam
After adjusting the position of fixed roof with roofing system dedicated machine undercut undercut locking, undercut according fastener orientation, buckle side machines are from the top down to buckle side;
Requires continuous edge bite, smooth, and the gap can not be distorted. Bite biting edge machine in the process of crawling, the day of the panel must be in place to complete undercut, so as not to come when the wind was blowing bad sectors or scraped away.
3 Metal tile roof construction technology Control Points
3.1 familiar with the drawings: Understanding Changes to the preceding process and design changes.
3.2 familiar with the construction site: Construction site includes two familiar aspects, one is the quality of the construction process for the acceptance, the second is the control requirements of the drawings on the next step work arrangements.
3.3 detailed measurement positioning, identify the connector centerline, actinomycetes installation should pay attention to the position of the control connections, the deviation is less than 2mm.
3.4 Pull the control of the level of horizontal and depth dimensions. Although connections have been installed control level height, but due to construction errors affect, the installation still pull horizontal level and depth control its position in order to ensure the installation is accurate, method reference to several processes before operating requirements.
3.5 Spot: three-dimensional space of the connecting member connecting member determined to be the temporary fixing welding. When spot welding surface points 2-3 points each, to ensure that connections will not fall off.
3.6 Acceptance tests: a connector for an initial fixed at different levels to inspect the quality of construction, the main three-dimensional spatial error check to ensure that the vertical error is less than 2mm, the level of error is less than 2mm. stone coated metal roofing tile
3.7 plus welding officially fixed: on acceptance of the connector is fixed, welding welding operation should follow the specifications and operating requirements for fully welded.
3.8 Acceptance: The welding good connections, on-site management staff to be individually check and acceptance, rework at improving the unqualified until it reaches the requirement.
3.9 preservative: Specific Procedures for cleaning welding slag and anti-rust paint brush
3.10 make a record: for every process of inspection, acceptance, rework, quality situation should be recorded in detail.
3.11 fully prepared waterproof layer and polyurethane foam insulation product protection, eliminate project risks.
4 Conclusion
Metal tile roof in the country has been the promotion and implementation of the roofing system is relatively sound, with strong durability, low maintenance, no leakage through the cold engineering risks, etc., I believe the future will have broad prospects for development.

by www.metal-roofing-sheet.com