Synthetic Roof Tile Installation: Avoiding 7 Critical Dimension Mistakes_BLOG_SYrooftile | UPVC Roofing Sheets Manufacturer & PVC roofing manufacturer

ASA Synthetic resin roof tiles are becoming a popular choice for modern architecture due to their lightweight, corrosion resistance, and aesthetic appeal. However, many homeowners and construction teams have encountered problems with these key dimensions - resulting in water leaks or tiles being blown off in strong winds. Based on 20 years of installation experience, ShenYu ROOF has identified the 7 most critical dimensions for proper synthetic tile installation.

Why These Dimensions Matter

Errors exceeding 5mm can lead to structural issues
80% of leakage problems stem from incorrect overlapping
Proper spacing can extend tile lifespan by over 10 years

1. Purlin Spacing: The Roof's Support System

Installation standards:

Moderate climates: 550-600mm
Snow/typhoon-prone areas: 450-500mm
Absolute maximum: Do not exceed 660mm

Professional advice: Use laser levels to ensure perfect alignment - visual estimation often leads to significant errors.

2. Tile Overlap: The First Line of Waterproofing

Precise dimensions:

Side overlap ≥80mm (≥100mm for extreme weather)
End overlap 150mm (200mm for slopes under 30°)

Common mistake: Some installers reduce overlap to 50mm to save materials, leading to leaks during heavy rain.

3. Eave Overhang: Balancing Function and Aesthetics

Optimal proportions:

Best visual effect: 70-80mm
Minimum functional requirement: ≥50mm
Dangerous threshold: Over 150mm

Drainage test: After installation, simulate heavy rain with a hose to verify water flows clear of walls.

4. Fastening Technique: Critical Installation Details

Essential requirements:

Drilling position: Center of peak (within 2mm tolerance)
Tightness: Gasket should be just compressed (overtightening causes stress concentration)
Materials: 304 stainless steel nails with EPDM washers (standard nails rust within 3 years)