Construction Guidelines for Capillary Drainage Board Installation

1. Pre-Construction Preparation

• Material Inspection: Verify drainage board specifications (size, type, quality) and check for damage/deformation. Prepare geotextiles and other auxiliary materials.

• Tool Preparation: Equip specialized laying tools, scissors, welding machines (if needed), and measuring tapes.

• Site Clearing: Remove debris, sharp objects, and standing water; ensure a level and compact subgrade.

2. Drainage Board Installation

• Layout Marking: Mark installation lines per design, aligning board direction with slope gradient for optimal drainage.

• Laying Methods:

• Overlap (≥100mm): Ensure tight seams to prevent leaks.

• Welding: Use professional equipment for airtight, durable seams.

• Anchoring: Secure boards on steep slopes with anchor pins at calculated intervals to prevent displacement.

3. Geotextile Installation

• Coverage: Lay geotextiles smoothly over drainage boards to filter debris and protect drainage channels.

• Seaming:

• Sewing (≥50mm width): Use UV-resistant threads.

• Overlap (≥200mm): Weight or fix edges to resist wind/water forces.

4. Inspection & Acceptance

• Visual Checks: Identify board/geotextile issues (tears, wrinkles, gaps) and rectify promptly.

• Drainage Test: Conduct simulated rainfall or water flow tests to verify unobstructed drainage and compliance with design.

• Formal Acceptance: Submit self-inspection reports to supervisors; proceed only after approval.

Title: "Step-by-Step Installation and Quality Control of Capillary Drainage Systems"

Key Requirements:
✔ Precision Alignment – Follow slope-driven layout plans.
✔ Seam Integrity – Overlap/weld to prevent leakage.
✔ Dual-Layer Protection – Geotextile safeguards drainage channels.
✔ Performance Validation – Testing pre- and post-construction.

Applications: Landscaping, foundation drainage, roof gardens, and retaining walls.