Category: PPGI corrugated roofing sheet


First, PPGI corrugated roofing sheet for sale is widely used, and has no pollution, excellent weather resistance, corrosion resistance, and high processing and other characteristics, PPGI corrugated roofing sheet is generally widely used in industrial aspects, in the construction, household appliances, packaging, mechanical processing, transportation, interior decoration, medical and automotive and other industrial aspects are involved.

Second, PPGI corrugated roofing sheet purposes in the home appliances is 31%, while in the purpose of the construction accounted for 63%, is indispensable for the construction industry, in other aspects of the application is less, about 6%, with the zinc plating steel plate as the base plate width, have protection and isolation effect, not only can prevent the steel rust, prolong service life of more than 50% than before, and the stronger protective effect.

Three, region, and use the different parts, even with the same amount of galvanized, paint and coating thickness of the same width, and its service life is also more different, in the industrial area and coastal area, due to the role of sulphur dioxide gas in the air or salt, corrosion velocity can accelerate that lead to the service life of the affected, and in the rainy season, the coating is soaked by the rain for a long time will quickly from corrosion and thus reduce the service life.

Four, PPGI corrugated roofing sheet manufacturing buildings and factories, if often rain wash even prolong service life, or more vulnerable to sulfur dioxide, salt and dust effect is used, so in the design, the slope of the roof, the accumulation of dust and other contaminants, the less the longer service life will be, for those who are not affected by rain often wash the location and area should be clean regularly.


In the construction industry, especially in the field of industrial plants, different industries adopt different series of enclosure materials according to the application requirements and characteristics.
Aluminum roofing material has been used in architecture since the beginning of this century. For example, a gymnasium near the city of Pittsburgh in the United States was built in 1927. The aluminum roofing material was used as the roofing material. Aluminum roofing materials have such excellent durability because the aluminum plate and atmospheric contact will produce a layer of aluminum oxide film on the surface, this layer of oxide film will protect the inner layer of the aluminum plate from further corrosion. This oxide film has good chemical resistance, so it is suitable for industrial buildings, serious air pollution or areas with Marine climate.

Since its mass production, the high quality PPGI corrugated roofing sheet has been far ahead in the field of domestic construction industry workshop. The base plate of color coated steel plate is the cold rolled base plate, hot galvanized base plate and galvanized base plate. Coating types can be divided into polyester, silicon-modified polyester, vinylidene fluoride, and plastic sol. The surface state of painted steel plate can be divided into coated plate, embossed plate and printed plate, painted steel plate is widely used in construction home appliances and transportation and other industries, for the construction industry is mainly used in steel structure plant, airport, warehouse and freezing and other industrial and commercial buildings, such as the roof wall and door, civil buildings using less PPGI corrugated roofing sheet. It differs from plastic steel in the composition of the material. A magnet will move.

Durability comparison: AZM steel coil can form aluminum oxide film with an atmosphere to prevent further corrosion. There is usually a 15-20 - year coating warranty for civil buildings. The service life of the architectural design is more than 50 years. Usually guaranteed for 25 years; PPGI corrugated roofing sheet in humid air and rain, snow water corrosion caused by simple corrosion rust cracking, especially rivets, joints.

Component comparison: AZM steel coil component light (density of 2730kg/m3); The weight of color steel plate is relatively heavy (density is 7850kg/m3).

Comparison of strength and steeliness: the content of magnesium and manganese in the aluminum alloy of AZM alloy makes it have certain strength and rigidity. But the aluminum alloy plate's internal stress and the hardening, the strength and so on does not have the obvious yield point, is inferior to the color steel good; PPGI corrugated roofing sheet strength and stiffness is better. Not easily deformed, etc.

Comparison of appearance: AZM steel coil can be divided into non-painting (hammer, embossing, pre-passivation alumina surface treatment, etc.) and painting (PVDF, SMP, PE, etc.); PPGI corrugated roofing sheet can be divided into non-painted and painted classes (PVDF, SMP, PE, HDP, etc.).

Lightning protection: the thickness of al-mg-mn alloy is usually 0.7mm and 0.9mm, which can be directly used as lightning protection lightning connector to prevent roof perforation. Color steel plate is usually 0.5mm thick low cost Galvalume Corrugated Roofing Sheet and galvanized steel plate, can not be directly used as lightning protection, lightning protection need to be set up (such as lightning rod).

Fire safety: low melting point (660 c) for mg-mn alloys. High-temperature resistance function is poor, 150 degrees above the rapid loss of strength. When a fire breaks out, the roof is easy to burn through, so that the fire to the outside extension, rather than to the inside of the horizontal extension, help firefighters from the top of the fire pipe extension; PPGI corrugated roofing sheet steel melting point high (1515 degrees Celsius).

Molding: AZM steel coil has excellent weldability, high plasticity, low-temperature environment, aluminum alloy strength, and extension function has been improved, with excellent low-temperature operation function; PPGI corrugated roofing sheet steel at low temperature under simple attack cold brittle.

Cost performance: AZM steel coil cost performance is high: light, waterproof, easy to bend the arc, good stereo vision; Color steel cost-effective low: quality heavy, slightly poor waterproof, strong steel, slightly poor arc bending, the role of art owe security.

Therefore, there is no absolute which is good, which is not good, but according to the durability needs of industrial buildings, structure bearing needs, material needs, appearance needs, safety needs, cost needs and other specific needs to determine whether to choose high quality prepainted color galvanized coil or AZM steel coil.


Because the high-quality PPGI corrugated roofing sheet is a prefabricated dismantling structure, the pre-construction line task plays an infinitely important guarantee for the quality of the previous construction, and it does not ignore it. The construction requirements for roofing roof and glass rock wool are reviewed in the following order.

1. Pre-construction review
Mouth: The construction of the trench is strong and there must be no looseness; all the strips must be parallel to each other, and all the strips are three-dimensional; the strips and the diagonal strips: the strips and the diagonal strips must be pre-tensioned firmly, and the nuts must not be loose.

2. PPGI corrugated roofing sheet design
Longitudinal sheet design
Be the first to confirm the size of the first and last rafts of each sloping roof and the positioning axis, and then confirm the end point of the roof panel, the starting point and the size of the first and last rafters. The distance between the first and last rafters is the total length of the low cost color-coated corrugated roofing sheet. In the center of the lighting belt, according to the request of the drawings, take the lead in affirming the length and length of the lighting belt, and then confirm the length of the PPGI corrugated roofing sheet; the lap of the lighting belt and the color sheet adopts the lighting belt on the upper side and the color sheet in the lower form. Apply water-stop glue to ensure waterproof and reliable.

Horizontal sheet design
The ineffective coverage of the panels on the roof slab is the fundamental modulus of the roof slabs. The layout of the roof slabs is the size of the total width of the roof and the fundamental amplitude.

The total width of the roof is indeed fixed: the total width of the roof should be the spacing between the axis of the first and last columns of the building plus the structural size of the roof protruding from the first and last columns.

According to the total width of the roof, the horizontal unit of the PPGI corrugated roofing sheet is planned, and the size of the flood sheet at the gable is planned according to the margin.

According to the design of the row sheet, the position of the starting line of the row sheet is affirmed. In the PPGI corrugated roofing sheet installation, the endpoint is first marked on the purlin, that is, the starting point of the row board is marked on each purlin along the span direction, and the connection and building of each point The longitudinal axis is perpendicular, and then the punctuation is repeated once every ten plates in the amplitude direction of the sheet to restrict and review the construction bias of PPGI corrugated roofing sheet, and then correct.

When the high-quality PPGI corrugated roofing sheet needs to be longitudinally overlapped, the length of the stacking is guaranteed to be more than 15 cm. The water-stopping glue is applied according to the design drawing, and the grounding position is in the position of the sheet.

Because the high quality PPGI corrugated roofing sheet is a prefabricated dismantling structure, the pre-construction line task plays an infinitely important guarantee for the quality of the previous construction, and it does not ignore it. The construction requirements for roofing roof and glass rock wool are reviewed in the following order. 1. Pre-construction review Mouth: The construction of the trench is strong and there must be no looseness; all the strips must be parallel to each other, and all the strips are three-dimensional; the strips and the diagonal strips: the strips and the diagonal strips must be pre-tensioned firmly, and the nuts must not be loose. 2. Plate design Longitudinal plate design Be the first to confirm the size of the first and last rafts of each sloping roof and the positioning axis and then confirm the end point of the roof panel, the starting point and the size of the first and last rafters. The distance between the first and last rafters is the total length of the low cost color-coated corrugated roofing sheet. In the center of the lighting belt, according to the request of the drawings, take the lead in affirming the length and length of the lighting belt, and then confirm the length of the color plate; the lap of the lighting belt and the color plate adopts the lighting belt on the upper side and the color plate in the lower form. Apply water-stop glue to ensure waterproof and reliable. Horizontal panel design The ineffective coverage of the panels on the roof slab is the fundamental modulus of the roof slabs. The layout of the roof slabs is the size of the total width of the roof and the fundamental amplitude. The total width of the roof is indeed fixed: the total width of the roof should be the spacing between the axis of the first and last columns of the building plus the structural size of the roof protruding from the first and last columns. According to the total width of the roof, the horizontal unit of the color plate is planned, and the size of the flood sheet at the gable is planned according to the margin. According to the design of the row sheet, the position of the starting line of the row sheet is affirmed. In the roof sheet installation, the endpoint is first marked on the purlin, that is, the starting point of the row board is marked on each purlin along the span direction, and the connection and building of each point The longitudinal axis is perpendicular, and then the punctuation is repeated once every ten plates in the amplitude direction of the plate to restrict and review the construction bias of the plate, and then correct. When the roof panel needs to be longitudinally overlapped, the length of the stacking is guaranteed to be more than 15 cm. The water-stopping glue is applied according to the design drawing, and the grounding position is in the position of the strip.

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