Double Lok Metal Roof Panels
Brand:HF
Finishes: PVDF/PE
3 factories&7 production lines&more than 40 machines
Thickness:0.5-1.2mm
Height:25-65mm(1"-2.55")
Material Aluminum alloy, steel,stainless steel,copper, titanium zinc
Supply Ability:1000 Ton/month
Service life:30-year warranty
MOQ:500㎡/1T
Color: RAL and other customized colors
Standard:ASTM,DIN,JIS,BS,GB/T
Delivery time: 15-20 days
Xi'an Huafeng Construction Engineering Co., Ltd.: Your Trusted Double Lok Metal Roof Panels Supplier
Xi'an Huafeng Construction Engineering Co., Ltd. is a leading manufacturer and supplier of high-quality double lok metal roof panels. With our state-of-the-art generation offices and broad industry involvement, we offer prevalent material arrangements that combine toughness, aesthetics, and climate resistance. Our items are planned to meet the most elevated guidelines of execution and life span, making them the perfect choice for commercial, mechanical, and high-end private ventures.
Product Introduction
A double Lok roof panel typically refers to a type of metal roofing panel that features a double interlocking mechanism for enhanced weather resistance and structural stability. These panels are commonly used in commercial, industrial, and agricultural buildings due to their durability and ability to withstand harsh conditions.

Specifications
一、Key Features of Double Lok Standing Seam:
- Interlocking Seams:The panels have a double-folded seam that locks together mechanically (often with a seaming tool), providing superior strength and weather resistance.
- Concealed Fasteners:The panels are attached with hidden clips, reducing the risk of leaks and improving aesthetics.
- Thermal Expansion Accommodation: The floating clip system allows for natural metal expansion and contraction.
- High Wind & Uplift Resistance:The double-lock seam provides excellent resistance to strong winds and negative pressure (common in hurricanes or storms).
- Low Maintenance:The durable metal (usually steel or aluminum) resists corrosion, fading, and extreme weather.

二、Advantages:
- Superior Weatherproofing:Better than single-lock systems due to the extra seam fold.
- Long Lifespan: Can last 30-50+ years with proper installation.
- Sleek, Modern Look:Clean lines with no exposed screws.
- Energy Efficiency: Can be paired with insulation for better thermal performance.
三、Installation Process:
- Substrate Preparation: Ensure the roof deck is properly sheathed and underlayment is applied.
- Clip Attachment: Standing seam clips are fastened to the deck, allowing panel movement.
- Panel Placement:Metal panels are snapped together over the clips.
- Seam Locking:A mechanical seamer is used to crimp the double-folded seams tightly.

四、Common Materials:

- Galvanized Steel :G-90
- Galvalume:Aluminum-Zinc Coated Steel
- Aluminum:Lightweight & corrosion-resistant
- Copper or Zinc :Premium, decorative options
五、Applications:

- Commercial buildings
- Industrial facilities
- Residential roofs (luxury homes)
- Solar panel integration (standing seam roofs are ideal for solar mounts)
Why Choose Us?
- Industry-leading expertise in double lok metal roof panels
- State-of-the-art production facilities ensuring consistent quality
- Customizable solutions to meet your specific project requirements
- Comprehensive support from design to installation
- Commitment to sustainability and energy efficiency
Project Cases
We've successfully completed numerous projects across various sectors, showcasing our expertise in the products.

Factory Strength
Our advanced manufacturing capabilities include 3 factories, 7 production lines, and over 40 specialized machines.

Packaging
We ensure secure packaging and reliable transportation to deliver your products safely and on time.

Qualification Certification
Our products meet international standards and are backed by ISO, CE, and SGS certifications.

FAQ
Q: What is the lifespan of your products?
A: Our panels come with a 30-year warranty and can last 50+ years with proper installation and maintenance.
Q: Are the products suitable for residential use?
A: Yes, they're excellent for luxury homes, offering durability and a sleek, modern appearance.
Q: How do double lok panels perform in high wind areas?
A: Their interlocking design provides superior wind resistance, making them ideal for hurricane-prone regions.
Q: Can solar panels be installed on double lok metal roofs?
A: Absolutely! The standing seam design is perfect for solar panel integration without compromising roof integrity.
Q: What colors are available for your double lok panels?
A: We offer a wide range of RAL colors and can provide custom colors to match your project's aesthetic needs.
Contact Us
For inquiries about our double lok metal roof panels, please email us at huafeng@hfmetalroof.com.
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