HydroCorner Sill Treatment

HydroCorner™ is an inexpensive option for protecting a window sill from moisture intrusion. Place one HydroCorner in each sill corner, and then cover with a piece of self-adhered flashing (HydroFlash®) for a quick and easy-to-install sill treatment.

  • Prevents water intrusion at window/wall interface keeping walls dry
  • Durable material resists cracking in cold weather or damage during window installation
  • Easy to install – no special tools / cutting required
  • Inexpensive, minimum increase in “installed” cost
  • Speeds sill pan assembly
  • Meets the sill pan requirement for Energy Star Home

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