Guangdong LiYou Steel Structure Engineering Co., Ltd. +8619147784007 liyousteelstructure@outlook.com
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At Liyou Steel, we understand that steel structure roof details make the critical difference between a good building and a great one. Our roof systems combine structural integrity, weather resistance, and architectural aesthetics to deliver superior performance.
Primary Framing
High-strength steel rafters (H-beams, I-beams)
Custom-designed truss systems for long spans
Slope optimization (1:10 to 1:4 pitch standards)
Secondary Framing
Precision C/Z purlins (2-3mm thickness)
Anti-sag rod bracing system
600-1200mm spacing based on load requirements
Roof Covering Options
Corrugated steel sheets (0.4-1.0mm thickness)
Standing seam metal roofing for premium projects
Composite panels with insulation (50-150mm thickness)
Polycarbonate sheets for natural lighting
Critical Connection Details
M20 high-tensile bolts for primary connections
Sealed weld joints at stress points
Expansion joints every 30-50 meters
| Quantity: | |
|---|---|
Steel
Online technical support
Warehouse
Guangdong, China
Warehouse
3 years
total solution for projects
LYB-001
Warehouse
Industrial
CE Certification
Industrial Commercial
C.Z Shape Steel Channel
Sliding Door
Customized Color
Sandwich Panel Optional
Aluminum Alloy Sliding Window
SAP2000/AutoCAD /PKPM /3D3S/TEKLA
Hot Dip Galvanized
25-60 days
Single item
1X1X1 cm
1.000 kg
Thermal Performance
100mm rock wool insulation (U-value: 0.35 W/m²K)
Cool roof coatings (Solar Reflectance Index > 82)
Ventilated roof designs to prevent condensation
Weatherproofing
Butyl tape sealed overlaps
Continuous gutter systems (0.8mm stainless steel)
Snow guards for cold climates
Architectural Features
Curved roof capability (30-60m radius)
Skylight integration (up to 15% roof area)
Custom fascia and soffit details
3D modeling of all steel structure roof details (Tekla Structures)
Prototype testing for wind uplift (up to 150mph)
Water penetration testing (ASTM E331 standard)
On-site dimensional verification
Project Example:
Philippine Logistics Warehouse Roof
Span: 36m clear span
Materials: 0.7mm galvanized steel sheets
Insulation: 75mm PIR foam core
Installation time: 18 days
PRODUCT SPECIFICATIONS
| No | Components | Specification | ||
| Embedded Parts | ||||
| 1 | Anchor Bolt | M24 | ||
| 2 | High Strength Bolt | M20,10.9S | ||
| 3 | Common Bolt | M16 | ||
| 4 | Galvanized Bolt | M12 | ||
| 5 | Shear Nail | M16 | ||
| 6 | Tir rod | ∅32*2.5 | ||
| Main Steel Structure Parts | ||||
| 1 | Steel Column (Q355B) | H550*300*10*16 | ||
| 2 | Wind Column (Q355B) | H400*220*6*10 | ||
| 3 | Roof Frame Beam (Q355B) | H900~500*220*10*12 H500~650*220*8*12 | ||
| 4 | Crane Beam (Q355B) | H650*320/240*10*16/14 | ||
| 5 | Tie Bar(Q235B) | ∅168*4.0 | ||
| 6 | Horizontal Brace (Q235B) | ∅168*4.0 | ||
| 7 | Column Brace (Q235B) | ∅25 | ||
| 8 | Angle Brace (Q235B) | L63*5.0 | ||
| 9 | Roof Purlin (Galvanized) | Z280*80*20*2.5 | ||
| 10 | Wall Purlin (Galvanized) | C250*75*20*2.5 | ||
| 11 | Connecting Plate | 6mm-30mm | ||
| Other Steel Structure Parts | ||||
| 1 | Roof Panel | 50mm Rock wool Sandwich panel | ||
| 2 | Wall Panel | 50mm Rock wool Sandwich panel | ||
| 3 | Gutter | 2mm Galvanized Steel Plate | ||
| 4 | Down Pipe | PVC160 (Including parts) | ||
| 5 | Trimming | Color steel 0.5mm Gavanized steel panel | ||
Thermal Performance
100mm rock wool insulation (U-value: 0.35 W/m²K)
Cool roof coatings (Solar Reflectance Index > 82)
Ventilated roof designs to prevent condensation
Weatherproofing
Butyl tape sealed overlaps
Continuous gutter systems (0.8mm stainless steel)
Snow guards for cold climates
Architectural Features
Curved roof capability (30-60m radius)
Skylight integration (up to 15% roof area)
Custom fascia and soffit details
3D modeling of all steel structure roof details (Tekla Structures)
Prototype testing for wind uplift (up to 150mph)
Water penetration testing (ASTM E331 standard)
On-site dimensional verification
Project Example:
Philippine Logistics Warehouse Roof
Span: 36m clear span
Materials: 0.7mm galvanized steel sheets
Insulation: 75mm PIR foam core
Installation time: 18 days
PRODUCT SPECIFICATIONS
| No | Components | Specification | ||
| Embedded Parts | ||||
| 1 | Anchor Bolt | M24 | ||
| 2 | High Strength Bolt | M20,10.9S | ||
| 3 | Common Bolt | M16 | ||
| 4 | Galvanized Bolt | M12 | ||
| 5 | Shear Nail | M16 | ||
| 6 | Tir rod | ∅32*2.5 | ||
| Main Steel Structure Parts | ||||
| 1 | Steel Column (Q355B) | H550*300*10*16 | ||
| 2 | Wind Column (Q355B) | H400*220*6*10 | ||
| 3 | Roof Frame Beam (Q355B) | H900~500*220*10*12 H500~650*220*8*12 | ||
| 4 | Crane Beam (Q355B) | H650*320/240*10*16/14 | ||
| 5 | Tie Bar(Q235B) | ∅168*4.0 | ||
| 6 | Horizontal Brace (Q235B) | ∅168*4.0 | ||
| 7 | Column Brace (Q235B) | ∅25 | ||
| 8 | Angle Brace (Q235B) | L63*5.0 | ||
| 9 | Roof Purlin (Galvanized) | Z280*80*20*2.5 | ||
| 10 | Wall Purlin (Galvanized) | C250*75*20*2.5 | ||
| 11 | Connecting Plate | 6mm-30mm | ||
| Other Steel Structure Parts | ||||
| 1 | Roof Panel | 50mm Rock wool Sandwich panel | ||
| 2 | Wall Panel | 50mm Rock wool Sandwich panel | ||
| 3 | Gutter | 2mm Galvanized Steel Plate | ||
| 4 | Down Pipe | PVC160 (Including parts) | ||
| 5 | Trimming | Color steel 0.5mm Gavanized steel panel | ||
