| Customization: | Available |
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| After-sales Service: | After Sale Service |
| Hardness: | Mid Hard |
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
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| Refund policy: | Claim a refund if your order doesn't ship, is missing, or arrives with product issues. |
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Roofing material is the outermost layer on the roof of a building, sometimes self-supporting, but generally supported by an underlying structure. A building's roofing material provides shelter from the natural elements. The outer layer of a roof shows great variation dependent upon availability of material, and the nature of the supporting structure.
Our roofing materials have H, I beams, C or Z purlins, steel sheet or sandwich panel roof panel.
Qingdao Director Co.,Ltd is a China based manufacturer of steel structure building, prefabricated house and related steel products. Our products include the prefabricated house, steel structure building such as warehouse, workshop, dormitories, etc.) Container house, modular house, sandwich panels and so on. e have exported our products to over 40 different countries around the world. We have our own engineers who can provide the perfect designs according to the customers' demand.
We are an ISO9001 registered company, and we produce the products in Chinese National Standard, international standard, and customer's special request.
FAQ
| 1.Common type of the industrial building? Reply:Portal frame is the usual type in the industrial workshop and warehouse shed.Other types also could be designed and manufacturer as per clients's equest. |
| 2.What's the quality grade of the steel structure components? Reply:Q345 is used for main steel structure,Q235 is used for secondary steel structure. |
| 3.How about the delivery time? Reply:Usually,within 25-60 days after the order confirmed,also depends on the fabrication quantity. |
| 4.How about the derust grade? Reply:Ball blasting Sa2.5 on main steel structure manual derust St2.0 on secondary steel structure. |
| 5.What kind panel used for the roof and wall? Reply: Color corrugated steel sheet and sandwich panl could be used.Sandwich panel performs well on the heat insulation,sound insulation.Common sandwich materials are EPS,glass wool and PU. |
| 6.How to install it? Reply: We will furnish you the detailed construction drawing and theconstr uctionmanual which could help you to erect and install the building step by step.We also could send the engineer your local to help you if needed. |
| 7.Maintenance: Reply:Finish paint need be done after the frame installed,and do it again after 6-8 months.So the surface willstay m ore time. |
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