Cladding profile

PAR open-joint

Square-edged planed boards installed with open joints for a linear, rhythmic façade. Requires a UV-resistant façade membrane behind the open joints.

Specification

PAR open-joint specification

Profile code	Available on request
Application	Exterior and Interior
Installation orientation	Vertical or Horizontal
Board thickness	Larch: 21 mm · Spruce: 19 mm · Accoya®: 20 mm · Japanese Cedar: Available on request
Overall width	Larch: 95 / 120 / 145 mm · Spruce: 95 / 120 / 145 mm · Accoya®: 146 / 196 / 242 mm · Japanese Cedar: 145 mm; alternative widths on request
Effective cover width	Available on request
Joint / shadow-gap dimension	Available on request
Available lengths	Larch: 3,000 / 4,000 / 5,000 / 6,000 mm · Spruce: 3,000 – 6,000 mm in 300 mm steps · Accoya®: 2,400 / 3,000 / 3,600 / 4,200 / 4,800 mm · Japanese Cedar: 3,600 / 4,200 mm
Compatible timber species	Larch, Spruce, Accoya®, Japanese Cedar
Fixing method	Face-fixed with stainless-steel screws, two screws at every fixing point.
Specification note	Open-joint construction. The membrane visible through the joints must be suitable for UV exposure; confirm the system for each project.
Revision	Not yet issued
Last updated	8 October 2026