Fiber Cement Boards: An Innovative Choice for Curtain Wall Materials
As a manufacturer of fiber cement boards, we provide a comprehensive analysis of the application of fiber cement boards in curtain walls:
- Originated in Europe/America with 100+ years of development
- Lightweight yet strong, thickness only 6-30mm
- Durability verified in global climates
- Perfect balance of functionality and aesthetics
Product Classification & Selection Guide
1. By Composition
- Asbestos-free fiber cement boards: Preferred eco-friendly option
- Asbestos fiber cement boards: Requires cautious use
2. By Density
- Low density (1.0-1.2g/cm³): Interior partitions
- Medium density (1.2-1.5g/cm³): General exterior walls
- High density (1.5-2.0g/cm³): Specifically for curtain walls
Core Advantages for Curtain Wall Applications
1. Excellent Physical Properties
- Flexural strength ≥15MPa
- Water absorption ≤20%
- Wet expansion ≤0.25%
- Withstands 50+ freeze-thaw cycles
2. Outstanding Durability
- Meets weather resistance standards
- UV aging resistant
- Acid/alkali corrosion resistant
- Designed service life 25+ years
3. Fire Safety
- Class A1 non-combustible
- No toxic emissions during fire
- Effectively blocks fire spread
Professional Installation Structure Analysis
1. Joint Design Principles
- Open joints: Recommended first choice
- Closed joints: Requires special treatment
- Joint width ≥8mm
2. Connection Method Comparison
| Type | Suitable Thickness | Characteristics |
|---|---|---|
| Continuous Hanger | ≥10mm | Stress concentration verification needed |
| Back Bolt | ≥12mm | Similar to stone curtain walls |
| Through Connection | ≥8mm | Economical but exposed fasteners |
High-Density Board Installation Process
1. Pre-construction Preparation
- Drawing review confirmation
- Strict material inspection
- Sample panel first policy
- Complete technical briefing
2. Framework System Installation
- Main frame spacing ≤1200mm
- Secondary frame spacing ≤612mm
- Cross brace spacing ≤1224mm
- Welding flatness control ≤2mm/m
3. Board Fixing Essentials
- Screw spacing 200-250mm
- Countersunk 0.5mm below surface
- 5-7mm expansion gaps
- Staggered panel installation