The heel bead, if it exists, makes two important contributions: Heel bead leak. Holes in heel bead visible with glazing stops removed. The heel bead defends the exterior sealant line from differential pressures which might draw water through the glazing system, reducing the potential for water penetration.

Heel bead definition - A heel bead is an application of sealant between a glass pane that surrounding stop (s) in its window frame.

Heel Bead – After the glass has been installed, a bead of sealant is used to bridge the joint between the glass and the sash or frame. This is a secondary line of defence against water penetration in a prime sealed window but in a rain screen window it becomes the primary seal.

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2024年8月15日 · Poorly installed “heel beads” are often the result of leakage through interior compression gaskets, glazing attachments, and operable vent sash perimeters, and can lead to premature deterioration of laminated and insulating glass.

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The B6 Heel Bead Seal Security Glazing System is suitable for installing all types of single glass and double glazed units into non-drained (fully bedded) timber window and door frames. It is also suitable for reglazing of existing timber frames with double glazed units.

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