Plinth at sill beam — vertical GS MW S/CH panel layout, variant II

Junction function

Plinth variant II with greater projection — a continuation of variant I (p. 16), with an increased projection d=60–100 mm of the OB-13 drip flashing, used for:

• Tall façades (>8 m) — greater rainwater run-off from a longer façade.
• Open terrain (fields, industrial parks) — stronger wind pressure → stronger splash-back.
• Aggressive climate — coastal, sub-mountainous zones with increased rainfall.

Vs variant I:

• Greater projection = stronger “canopy” effect, better protection of the lower edge.
• More visually prominent — premium projects often choose variant I for minimalist aesthetics.

Critical installation aspects

• Extended OB-13 requires stronger anchorage to the sill beam — expansion anchors or Ø6 steel rivets instead of the typical 4.8 mm.
• Drainage strip in the ground below the OB-13 flashing — paving blocks or gravel under the ground over the width of the flashing; without this, splash-back returns under the building from the surface itself.
• OB-13 → OB-10 connection identical to variant I.
• PURS assembly foam (item 08) in a 5–10 mm strip between the beam and the panel.
• Verification with structural engineering — a longer OB-13 means a larger surface exposed to wind pressure/suction; in wind zones III/IV additional anchors are required.

Used in typical wall systems GS MW S and GS MW CH.

Documentation

Technical Catalogue GS MW S/CH/U (Gór-Stal 2025), page 15 — Plinth at sill beam, vertical panel layout, variant II (d=60–100 mm). Scale 1:5.

Components in this junction