Polyguard

Polyguard Polyflow® 10 Drainage Board – 4' x 50' Roll | Below-Grade Waterproofing Protection & Hydrostatic Pressure Relief

Polyguard Polyflow® 10 Drainage Board – 4' x 50' Roll | Below-Grade Waterproofing Protection & Hydrostatic Pressure Relief

$529.79
SKU: POL POLYFLOW10
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This product ships in 1-2 days if ordered by 2 PM EST Monday to Friday.
Description

Polyguard Polyflow® 10 Drainage Board is a lightweight, sheet-molded composite designed to manage below-grade water around foundation walls. Its polymeric core creates pre-determined flow paths for water to drain away from structures, while the filter fabric prevents soil particles from clogging the system. When paired with Poly Wall® waterproofing membranes, Polyflow® 10 provides reliable protection against hydrostatic pressure and mechanical damage during backfill. Supplied in convenient 4’ x 50’ rolls, it’s an economical and easy-to-install solution for residential and commercial foundation waterproofing.

Features & Benefits

  • Dual Protection – Channels water away from foundations while shielding the primary waterproofing barrier during backfill
  • High Compressive Strength – Withstands up to 11,000 psf, ensuring durability under soil and structural loads
  • Lightweight & Easy to Install – 38 lbs. per roll allows for quick handling on-site
  • Optimized Drainage – Flow capacity of 18 gpm/ft for effective hydrostatic pressure relief
  • Economical Solution – Cost-effective waterproofing protection compared to thicker, rigid boards
  • System Compatibility – Complements Poly Wall® membranes, Totalflow™ systems, and perforated pipe outlets for high-capacity drainage

Technical Data

Core Properties:

  • Material: Polymeric
  • Thickness: 0.40 in.
  • Compressive Strength: 11,000 psf
  • Flow Capacity: 18 gpm/ft

Fabric Properties:

  • Material: Polymeric
  • Grab Tensile Strength: 100 lbs.
  • CBR Puncture Strength: 250 lbs.
  • Apparent Opening Size (AOS): 70 US Sieve
  • Flow Rate: 140 gpm/ft²

Roll Dimensions:

  • Roll Length: 50 ft.
  • Roll Width: 4 ft.
  • Roll Weight: 38 lbs.

Application Details

Polyflow® 10 is designed for vertical foundation wall applications where it:

  • Relieves hydrostatic pressure by channeling groundwater to a sump or drain tile
  • Protects below-grade waterproofing membranes from punctures during backfill
  • Provides secondary water management when combined with Polyguard drainage accessories

Common Substrates:

  • Concrete foundation walls
  • Masonry block walls
  • Shotcrete walls
  • Insulated concrete form (ICF) systems

Installation Notes:

  • Install with fabric side facing the soil to filter particles
  • Connect to perforated pipe outlets or sump systems for drainage discharge
  • Immediately backfill with soil, sand, or gravel once installed