Metal Roofing Systems for Pre-Engineered Steel Building Kits
Metal roofing systems from Xinguangzheng are supplied as profiled steel roof panels, galvanized Z or C purlins, gutters, downspouts, bolts and accessories in a pre-engineered building kit. The specification depends on insulation, design loads and the code at your site. We manufacture the panels and purlins, while foundation and installation are done locally.
Send the building width, length, eave height, site country and roof insulation requirement, and we reply with a free layout, specification and itemized quote for the roof package.
Metal Building Roof Scope Within Metal Roofing Systems
A metal building roof in a Xinguangzheng kit is one layer of the pre-engineered package: profiled steel roof panels, galvanized Z or C purlins, gutters, downspouts, bolts and accessories are all on the supply list.
We manufacture the profiled sheet and the purlins, and the buyer’s local contractor builds the foundation and installs the roof on site. Projects under 3,000 m², or projects where the supplier must install the roof under a turnkey price, are outside this kit. Xinguangzheng’s metal building projects include factories in Algeria, Ethiopia, Pakistan, Sri Lanka and Jamaica.
Metal Building Roofing Components: Panels, Purlins, Gutters and Downspouts
Metal building roofing in this supply comes down to the three components below, and bolts and accessories are on the supply list too. Fastener type, sealing and flashing details are not published on this page. Ask for them with your RFQ.
| Roof component | What the supply covers | Depends on |
|---|---|---|
| Roof panels | 0.5 mm profiled steel sheet, with sandwich panels (EPS, rock wool or PU) as an option | Insulation requirement and project design loads |
| Purlins | Galvanized Z or C purlins | Purlins are denser in high wind or snow zones |
| Gutters and downspouts | Included in the standard supply list | Material and size are not published on this page; ask for them with your RFQ |
Loads, spans and coatings are engineered to the code that applies at your site.
A roof without an insulation requirement can use the 0.5 mm profiled steel sheet. When insulation is required, state it in the quote request so sandwich panels in EPS, rock wool or PU can be quoted, because the insulation scheme is one of the price drivers.
Metal PEMB Roof Supply Scope, Interfaces and Quote Inputs
The table below sorts a PEMB roof supply into what is included, what is optional and what is not included, and shows where the supply meets work done locally. The interfaces row names what the buyer’s side completes.
| Scope | What it covers | Note |
|---|---|---|
| Included | Everything in the roof components table, plus bolts, accessories, shop drawings, installation manual, export packing and a packing plan | Anchor bolt supply is confirmed in your quote |
| Optional | Insulation and on-site installation guidance | Listed in the itemized quote |
| Not included | Foundation, on-site installation, ocean freight, customs clearance, duties, taxes, insurance, inland transport, permits and site preparation | Duty and permit rules depend on the destination country |
| Interfaces | Foundation is designed and built locally, column base reaction data is supplied, and the order includes an installation manual and free remote guidance | Final structural, mechanical-electrical and civil design is confirmed by your local professional |
The roof portion of a quote for metal roofing systems moves with the insulation scheme, span, wind and snow loads and the local code, so this page gives no price per square meter. Send the inputs below and the free quote returns the layout, specification and itemized price.
- Building type and use
- Width × length × eave height
- Site country and city
- Single span or multi-span
- Roof and wall insulation requirement
- High wind or snow zone
Tell us if the roof needs EPS, rock wool or PU sandwich panels and if the site is in a high wind or snow zone, and we price the roof portion around both.
Ask for Roof PricingPre Engineered Metal Building Roof Beside the Other Building Systems
The roof sits in the kit beside wall panels, optional insulation and the steel frame, and each page below covers one building system.
Metal Roof Supply Questions: Order Size, Delivery, Payment and Installation
What is the minimum project size for metal roofing systems?
Projects start at 3,000 m², so a roof for a building under that area is outside this export supply. Above that size, send the width, length, eave height and site country, and the free quote confirms the roof layout, specification and itemized price, with foundation and installation handled by a local contractor.
How do I check the roof layout before steel is cut?
Construction drawings come from a Tekla 3D model, and the model is sent to you for confirmation before any steel is cut. The free quote that comes first contains the layout, specification and itemized price. Name the roof panels, purlins, gutters and downspouts in your request, and check them against the 3D model before steel is cut.
Which factory checks apply to the roof package?
Main welds on the steel structure are ultrasonically tested and coating thickness is measured at the factory, and all products are managed under an ISO 9001 quality system. Inspection items specific to roof panels are not published, so ask for the inspection scope of panels and purlins when you request the quote.
How long does production take and how is the roof shipped?
Production takes 15–40 days depending on tonnage, confirmed in the quote, and a project typically runs 4–12 weeks from consultation to local installation. The steel is bundled on steel pallets with an export packing and loading plan, shipping from Qingdao port. Sea transit days depend on the destination port and are confirmed in the quote.
Which payment terms apply, and what proof arrives before the final payment?
Pay by T/T or L/C: a 30% deposit, with the remaining 70% before shipment. Before you release the balance, you receive the UT weld inspection report and photos, and third-party inspection is welcome. Shop drawings, the installation manual, the UT report and photos travel with the order.
Who installs the roof, and what help do I get?
On-site installation is not in the quote, so a local contractor installs the roof using the installation manual and the free remote guidance included with the order. On-site installation guidance can be added as an optional item. The foundation is designed and built locally, and column base reaction data is supplied for it.
Which certifications and capacity stand behind the roof supply?
Qingdao Xinguangzheng Steel Structure Co., Ltd. (NEEQ: 834422) is certified by the Canadian Welding Bureau to CSA W47.1 Division 1. It holds EN 1090 (CE), EAC (GOST 23118-2019) and ISO 9001:2015 certification. Annual capacity is up to 150,000 tonnes of steel structures across four factories, and certificate copies are available on request.
Does the building design life apply to the roof?
The building is designed for a 50-year service life, with maintenance as set out in the maintenance manual. That is a building-level design life, not a service life for roof panels or coatings, and no roof-specific life figure is published here. Loads, spans and coatings are engineered to the code that applies at your site.
Which codes is the roof designed to, and who confirms the final design?
Design follows the code of the destination country, set with the project engineer and commonly AISC 360, EN 1993, AS 4100, AS/NZS 1170 or GB 50017. The roof is designed to that code, not certified to it. Final structural, mechanical-electrical and civil design is confirmed by the qualified professional at your site.
Send Your Metal Roof Inputs for a Written Quote
For metal roofing systems, send the six inputs from the supply scope section. We return a free layout, specification and itemized quote for the roof, with the 3D model for your confirmation before steel is cut. Email james@steelstructurechina.com or use WhatsApp, which opens with the roof project line pre-filled.
