External corner 90° — horizontal GS MW U panel layout

Junction function

90° GS MW U horizontal corner = premium version using OB-01 instead of OB-03 (geometric difference suited to the U-lock). Full rules = as for the S/CH horizontal corner (p. 30).

Critical installation aspects

• OB-01 wider flashing — stiffer to match U-lock geometry.
• PM1 at fixings along the edge zone.
• Mineral wool in the cavity by the column.
• Wind edge zone — densified fastener spacing within 3 m.

Documentation

Technical Catalogue GS MW S/CH/U (Gór-Stal 2025), page 60 — 90° corner, horizontal GS MW U layout. Scale 1:5.

Components in this junction